Multi-pin Hinge for Regular Appearance and Large Opening Angles
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Solution Overview
Problem
Conventional hinges in electronic devices often require protruding blocks or gaps to prevent interference, leading to irregular appearances and limited maximum opening angles due to shared hinge pins, failing to meet user requirements for aesthetics and functionality.
Innovation Solution
A multi-pin hinge system comprising a first and second mounting pin, a linkage pin assembly, and double-pin gear assembly, allowing the first and second bodies to connect to separate pins via single-pin gears, eliminating the need for shared pins and enabling larger opening angles without gaps or protrusions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If two bodies are connected to the same hinge pin, then the hinge structure is simple, but the bodies must have gaps or protruding blocks to avoid interference, resulting in irregular appearance
Solution Approach 1:
The patent divides the hinge system into multiple independent hinge pins (first hinge pin and second hinge pin) instead of using a single shared pin. Each body is connected to its own pin, eliminating the need for gaps or protruding blocks and achieving regular appearance while maintaining structural simplicity
Solution Approach 2:
The patent introduces a linkage mechanism as an intermediary between the two bodies, allowing them to be connected through separate hinge pins while maintaining coordinated motion. This mediator enables large opening angles without direct interference between bodies
2Ease of manufacture
If two bodies are connected to the same hinge pin, then the connection is straightforward, but interference during rotation limits the maximum opening angle
Solution Approach 1:
By separating the hinge connection into two independent pins, each body can rotate freely on its own pin without interfering with the other body's rotation path, thereby achieving large opening angles while maintaining simple connection methods
Solution Approach 2:
The patent uses a linkage mechanism that operates in a different dimensional space, coordinating the motion of two bodies connected to separate pins. This allows both bodies to achieve large rotation angles without colliding, as the linkage manages their relative positions in the rotational dimension
Data Source
AI summary
A multi-pin hinge includes a first mounting pin, a second mounting pin, a linkage pin assembly, a first single-pin gear, a second single-pin gear and a double-pin gear assembly. The first single-pin gear is sleeved on the first mounting pin, the second single-pin gear is sleeved on the second mounting pin, and the linkage pin assembly is movably connected between the first mounting pin and the second mounting pin by the double-pin gear assembly. The multi-pin hinge connect two bodies of an electronic device to two mounting pins, thus a first body is rotatable around a second body without directly contacting the second body, thereby avoiding providing a gap or a protruding block on the two bodies. An electronic device using the multi-pin hinge can avoid providing a protruding block and/or a groove, thus the electronic device has a regular appearance and structure.