Rotary Support Base for Electronic Devices Without Pull-Out Tenons
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Solution Overview
Problem
Existing electronic device supporting structures require separate brackets that increase environmental impact, manufacturing costs, and are inconvenient to operate, as they often rely on tenons that are prone to breaking and limit aesthetic design.
Innovation Solution
A rotary supporting structure composed of a base formed by an upper and lower lid with a pivot, an elastic element, and a limiting element, allowing the base to rotate between accommodating and supporting positions without drawing, using circular protrusions and filleted locating holes for secure positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If tenons are used to position the supporting board, then positioning stability is achieved, but the supporting board must be drawn out for operation and the tenons are prone to breaking
Solution Approach 1:
The patent replaces traditional tenons with a circular protrusion that rotates within a circular locating hole. The curved geometry allows the base to rotate smoothly between horizontal and vertical positions without requiring linear drawing motion, eliminating the need to pull the supporting board outward for operation.
2Reliability
If tenons are used to position the supporting board, then positioning stability is achieved, but the tenons are easy to break after long time usage
Solution Approach 1:
The circular protrusion and locating hole design replaces the linear tenon structure with a rotational mechanism. This curved geometry distributes stress more evenly during operation and eliminates the stress concentration points that cause tenons to break, significantly improving durability.
Solution Approach 2:
The patent transitions from a static tenon positioning mechanism to a dynamic rotational mechanism. The base can rotate freely between positions, allowing the protrusion to smoothly transition between locating holes rather than relying on fragile fixed-position tenons that withstand repeated stress.
3Ease of manufacture
If a single plastic ejecting component is used for the supporting board, then manufacturing is simplified, but the thickness is limited to three millimeters
Solution Approach 1:
The supporting board is divided into an upper lid and a lower lid that are separately manufactured using plastic ejecting processes, then assembled together with a pivot. This segmentation allows each lid to be produced within standard thickness limitations while the combined structure achieves the required total thickness for supporting heavier devices.
Solution Approach 2:
The patent combines two thin plastic ejecting components (upper and lower lids) into a single functional supporting board assembly. By merging these components through the pivot connection, the design achieves both the manufacturing simplicity of plastic ejecting and the structural thickness needed for heavy device support.
4Reliability
If a separate supporting bracket is used, then vertical support stability is achieved, but the number of components increases and aesthetic consistency is lost
Solution Approach 1:
The patent merges the supporting board with the device body by integrating the rotation mechanism directly into the housing structure. The base becomes an integral part of the device rather than a separate bracket, reducing component count while maintaining the ability to provide stable vertical support when rotated to the vertical position.
Solution Approach 2:
The base serves multiple functions: it provides structural support when vertical, maintains aesthetic consistency when horizontal (coinciding with the bottom surface), and enables both horizontal and vertical device orientations. This multi-functionality replaces the need for separate supporting brackets while achieving vertical support stability.
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
This solution eliminates the need for separate brackets, enhances the structural thickness for stable support, and maintains aesthetic consistency, even for heavier or larger devices, by allowing direct position changes without tenons and increasing the base's thickness beyond single-component limitations.
Implementation Method 1
an elastic element (30) sleeved on the pivot (211) from the inside of the electronic device body (10), and a limiting element (40) disposed at an end of the pivot (211); wherein the moving scope of the elastic element (30) is limited by the limiting element (40)
Data Source
AI summary
A rotary supporting structure without drawing is provided. A base is designed to have a protrusion to cooperate with a locating hole of an electronic device to make the base rotate between the accommodating position coinciding with the bottom surface of the electronic device and the supporting position intersecting with the bottom surface without drawing. The tenons used in the conventional design are replaced, and thus the operation is more convenient. The base is composed of an upper lid and a lower lid, and this may overcome the thickness limitation of the conventional single plastic component and provide stable support.