Display Stand Keyhole Locking for Screwless Slim Assembly
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Solution Overview
Problem
Existing display apparatuses face challenges in assembly convenience due to the use of screws, which increase assembly time and hinder slim product design.
Innovation Solution
A display apparatus that couples a stand to a rear support member without screws, using a holder that rotates to lock a stud into a key hole, with additional features like reaction ribs and guide protrusions to ensure secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If screws are used to couple the stand to the rear support member, then the coupling strength is improved, but the assembly time increases and the product thickness increases
Solution Approach 1:
The patent extracts and eliminates the screw fastening mechanism from the coupling system. Instead of using screws, the invention employs a press-fit coupling mechanism where the stand is directly inserted into the rear support member through a coupling hole, removing the need for separate fastening tools and reducing assembly time while maintaining coupling strength through precise geometric fitting.
Solution Approach 2:
The patent replaces the screw-based mechanical fastening system with a press-fit mechanical coupling system. The stand includes a coupling protrusion that fits into a coupling hole of the rear support member, creating a secure connection through friction and geometric interlocking rather than threaded engagement, thereby eliminating the need for screwdrivers and reducing assembly steps.
2Strength
If screws are used to couple the stand to the rear support member, then the coupling strength is improved, but the product thickness increases
Solution Approach 1:
The patent removes the screw threads and associated fastening components from the coupling design. The coupling mechanism is integrated directly into the stand and rear support member structures, eliminating the need for additional thickness to accommodate screw thread engagement and allowing for a slimmer overall product profile.
Solution Approach 2:
Instead of using external screw fasteners that add to the product thickness, the patent inverts the approach by integrating the coupling mechanism within the thickness of the existing components. The coupling protrusion and hole are formed as integral parts of the stand and rear support member, respectively, allowing the coupling function to be achieved without increasing the overall product thickness.
3Strength
If screws are used to couple parts, then the coupling strength is improved, but the assembly convenience deteriorates
Solution Approach 1:
The patent extracts the screw fastening operation from the assembly process. The stand is designed with a coupling protrusion that directly inserts into a coupling hole in the rear support member, eliminating the need for screwdrivers, alignment adjustments, and tightening operations, thereby significantly improving assembly convenience while maintaining coupling strength through precise geometric fitting.
Solution Approach 2:
The coupling mechanism is designed to be self-aligning and self-securing. The coupling protrusion on the stand automatically aligns with and inserts into the coupling hole of the rear support member without requiring external fastening tools or complex alignment procedures, enabling assembly personnel to complete the coupling operation simply by pressing the stand into position.
Data Source
AI summary
A display apparatus includes: a display panel; a rear support member at a rear of the display panel and including a stud protruding rearward; a stand configured to be coupled to the rear support member and including a key hole into which the stud is inserted in a first direction, wherein the stand is configured to be moved in a second direction relative to the stud; and a holder configured to be coupled to the stand and move the stand in the second direction so that the stud inserted into the key hole is locked in the key hole.