Foldable Holder Hinge Locking for Stable Opening and Closing

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Solution Overview

Problem

Existing foldable holders for electronic devices experience abnormal opening and closing due to torque attenuation in the rotating shafts, leading to inconsistent performance.

Innovation Solution

A foldable holder design featuring a first support plate, a second support plate, a bottom plate, and a clamping portion, where the clamping portion is used to lock and unlock the rotating portions, ensuring consistent opening and closing logic.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a hinge-type foldable holder relies on torque difference of rotating shafts to realize opening and closing, then the holder can achieve automatic opening and closing function, but the torque of rotating shafts is attenuated during continuous operation, leading to abnormal opening and closing

Engineering Contradiction:
Improveautomatic opening and closing functionVSAvoidabnormal opening and closing
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent introduces a clamping portion as an intermediary component that selectively clamps the first or second rotating shaft. This mediator controls the engagement and disengagement of rotating shafts, ensuring that only one shaft rotates at a time, thereby preventing torque attenuation and abnormal operation. The clamping portion acts as a gatekeeper that regulates the rotational movement through the system.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent implements dynamic switching between different rotating shafts based on the operational state. The clamping portion dynamically adjusts which shaft is engaged (clamped) and which is disengaged (free to rotate). This dynamic reconfiguration ensures that the system adapts to different operational phases, maintaining reliable torque transmission and preventing the attenuation problems associated with continuous rotation of a single shaft.

Inventive Principle:
Principle #15Dynamics

2Reliability

If the clamping portion is designed to clamp rotating portions, then the opening and closing logic becomes normal and reliable, but the device structure becomes more complex

Engineering Contradiction:
Improvenormal opening and closing logicVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The clamping portion is designed as a multi-functional component that performs multiple roles: it acts as a locking mechanism, a torque transmission element, and a state switching device. By making the clamping portion universal in its functionality, the patent reduces the need for separate dedicated components for each function, thereby managing structural complexity while achieving reliable operation.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent merges the clamping function with the torque transmission function into a single integrated mechanism. The clamping portion combines the features of a latch and a force transmission element, eliminating the need for separate locking and driving components. This merging approach simplifies the overall structure while maintaining the required reliability.

Inventive Principle:
Principle #5Merging (Combining)

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

The design ensures normal opening and closing logic of the foldable holder, improving user experience by maintaining consistent performance and adjusting the support angle for better viewing.

Implementation Method 1

a clamping portion, mounted on the first support plate and slidable relative to the first support plate

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS12287060B2Foldable holder and electronic device
Publication Date: 2025.04.29 HONOR DEVICE CO LTD
  • US12287060B2 patent drawing
  • US12287060B2 patent drawing
  • US12287060B2 patent drawing

AI summary

The application provides a foldable holder and an electronic device. A bottom plate of the foldable holder is rotationally connected to a first support plate through a first rotating portion, and a second support plate is rotationally connected to the first support plate through a second rotating portion. A clamping portion is mounted on the first support plate and slidable relative to the first support plate. When the foldable holder is in a closed state, the clamping portion clamps the second rotating portion to lock the first support plate and the second support plate, when the first support plate is at an angle to the bottom plate, the clamping portion is unlocked from the second rotating portion and clamped with the first rotating portion, the unlocking of the second rotating portion enables the second support plate to rotate relative to the first support plate.