Concealed 180° Hinge Layout for Collision-Free Flush Opening
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Solution Overview
Problem
Existing hinges for 180° movement, whether continuous or discontinuous, suffer from low rigidity and strength, and often result in large gaps or collisions between connected parts due to independent pivoting movements, which can lead to damage.
Innovation Solution
A hinge design with pivot axes of two U-shaped pivoting brackets arranged in offset planes, one parallel and one perpendicular to the connected part, separates force transmission and guiding, ensuring dependent pivoting and minimizing gaps while enhancing rigidity and strength through additional pivoting brackets and stoppers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If continuous hinges are used to couple the movements of parts, then the pivoting movements are dependent, but the system has low rigidity and strength and a wide gap exists between parts
Solution Approach 1:
The hinge is divided into multiple independent pivoting brackets (first and second U-shaped brackets) with distinct pivot axes. The first bracket handles guiding while the second bracket handles force transmission, separating functions to achieve both stability and strength without requiring a wide gap.
2Shape
If the gap between parts is reduced in continuous hinges, then the surface becomes more uniform, but the parts collide during movement due to low rigidity
Solution Approach 1:
By segmenting the hinge into specialized brackets, the first bracket ensures precise guiding that prevents collision while maintaining a minimal gap for surface uniformity, and the second bracket provides structural strength to support this configuration.
Solution Approach 2:
The pivoting brackets act as intermediaries between the parts, with the first bracket mediating the movement path to prevent collision and the second bracket mediating force transmission to maintain structural integrity during the 180° movement.
3Ease of operation
If discontinuous hinges with independent pivoting movements are used, then the parts can move freely, but collision of parts during movement results in damage
Solution Approach 1:
The hinge system is segmented into guiding and force-transmission functions performed by different brackets, providing controlled independent movement while preventing collision through the geometric constraints of the first pivoting bracket.
4Stability of the object's composition
If linear guiding is used to constrain movement, then the movement path is defined, but very complex geometries are required and excessive wear occurs
Solution Approach 1:
Instead of a single complex linear guiding mechanism, the guiding function is segmented into the first pivoting bracket with its specific pivot axis geometry, which provides movement constraint through simpler, more durable geometric relationships.
Data Source
AI summary
A concealed 180° hinge for the movable connection of two parts between a collapsed state and a fully opened-out state of the parts has at least two U-shaped pivoting brackets. The hinge, which has the highest possible strength and also allows the two parts to be moved in relation to one another without any risk of collision, includes rotary pins of the two pivoting brackets on the one hinge part that are arranged in a plane substantially parallel to the plane of the part, which can be connected to this one hinge part. The rotary pins of the two pivoting brackets on the second hinge part are disposed in a plane located substantially perpendicularly to the plane of the part, which can be connected to this second hinge part.