Replaceable Inner Tray Structure for Film Sticking Alignment
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Solution Overview
Problem
The inner tray in film sticking devices is prone to deformation, leading to the need for users to purchase new devices when reapplying screen protection films, thereby increasing costs.
Innovation Solution
A film sticking device with a detachable inner tray that can be replaced independently, featuring a chassis with a limiting frame and snap-connecting mechanisms to facilitate easy replacement and reduce costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the inner tray is made as a permanent part of the film sticking device, then the device structure is simple, but the inner tray is prone to deformation and cannot be replaced, increasing user costs
Solution Approach 1:
The film sticking device is divided into two main segments: a reusable outer shell (base and upper cover) and a replaceable inner tray. The inner tray includes a chassis with limiting frame that can be detached and replaced independently through snap-connecting mechanisms, allowing users to replace only the deformed inner tray rather than the entire device.
Solution Approach 2:
The inner tray is designed with dynamic replaceability through snap-connecting structures (snap-protrusions and snap-grooves) that allow the inner tray to be easily attached and detached from the base. This dynamic connection enables the inner tray to transition between fixed and replaceable states, solving the contradiction between structural simplicity and replaceability.
2Reliability
If the inner tray is designed to be replaceable, then user costs are reduced, but the device structure becomes more complex
Solution Approach 1:
The device is segmented into a permanent outer shell and a replaceable inner tray, allowing the complex replaceable structure to be isolated to only the necessary components (chassis, limiting frame, snap-connecting elements) while the outer shell remains simple and reusable.
Solution Approach 2:
The inner tray is designed as a consumable component that can be replaced when deformed, while the expensive outer shell (base and upper cover) is reused. This approach makes the overall system more economical by replacing only the necessary worn components rather than the entire device.
3Ease of operation
If the inner tray structure is simplified for easy replacement, then replacement ease is improved, but the film positioning precision may deteriorate
Solution Approach 1:
The inner tray is segmented into functional components: the chassis provides structural support, the limiting frame (with positioning notches and pulling notches) ensures precise film positioning, and the snap-connecting structures enable easy replacement. This segmentation allows each component to be optimized for its specific function without compromising overall performance.
Solution Approach 2:
Different parts of the inner tray have different structural qualities: the limiting frame has precise positioning features (notches, grooves) for accurate film placement, while the snap-connecting structures have simplified geometries for easy attachment and detachment. This local differentiation of structural quality resolves the contradiction between precision and ease of replacement.
Data Source
AI summary
Disclosed is a film sticking device. The film sticking device includes an upper cover, a base and an inner tray, the upper cover is movably connected to a side of the upper cover; the inner tray includes a chassis and a limiting frame provided at the chassis, the limiting frame encloses a receiving groove on the chassis, an inner wall of the limiting frame is provided with a limiting step configured for installing a screen protection film, a positioning notch and a pulling notch are respectively provided at two opposite sides of the limiting frame; and the inner tray is detachably installed at the base, and the upper cover is configured to cover the receiving groove.