Freezer Hinge Cover Mounting for Tool-Free Screw Access
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Solution Overview
Problem
Conventional hinge devices for doors or covers in ultra-deep freezers are difficult to detach and can scratch the mounting bases during removal, leading to maintenance issues and appearance deterioration.
Innovation Solution
The hinge device features a cover with recesses and grooves on the mounting bases, allowing the cover to be easily attached and detached without tools, with engaging portions that slide into place and projections that secure the cover, preventing undue firm engagement and ensuring stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the cover is fitted to the mounting base by bending and using projections in grooves, then the cover is securely attached, but the cover cannot be easily removed and may be scratched by tools
Solution Approach 1:
The mounting base is divided into two functional regions: grooves for initial cover insertion and positioning, and recesses for final secure engagement. This segmentation allows the cover to be attached in two stages, first guided into place by grooves, then securely held by recesses, enabling tool-free removal while maintaining stability
Solution Approach 2:
The grooves act as an intermediary element between the cover and the mounting base. They provide a transition path that guides the cover into the correct position before the recesses engage, allowing easy insertion and removal without tools while ensuring stable attachment during use
2Stability of the object's composition
If the cover is securely fitted to the mounting base, then the mounting screws are concealed, but maintenance access is difficult
Solution Approach 1:
The cover attachment system transitions from a static, permanently fitted design to a dynamic, reversible system. The grooves and recesses enable the cover to be easily attached and detached without tools, allowing maintenance personnel to access mounting screws for repairs while ensuring the cover remains securely concealed during normal operation
Data Source
AI summary
A hinge device features improved ease of installation/removal of covers thereof to/from mounting bases thereof. The hinge device, which has mounting bases and knuckles, is connected such that it swings on a hinge pin inserted in the knuckles. The covers conceal mounting screws of the mounting bases. Each of the mounting bases has recesses formed in a side surface on a non-supporting side, grooves which are formed in a side surface adjacent to both ends in the axial direction of the hinge pin and which extend to a side surface, and an engaged portion concavely formed in each of the groove. The inner side of the cover has engaging portions which are inserted in the groove and which detachably engages with the engaged portion when the cover is installed, and also has protruding streaks which enter into and engage with the recesses.