Emergency Lighting Device Dual-Axis Pivot Mechanism
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Solution Overview
Problem
Conventional emergency lighting devices have limitations in compactness, protection against shocks, and flexibility in orientation, as they often protrude and lack the ability to house the lighting means completely within the casing, which affects their packaging and deployment.
Innovation Solution
The emergency lighting device features a pivotally mounted LED lamp on an annular cradle within a housing, allowing complete retraction and enhanced orientation capabilities through a combination of joints and articulations, enabling 360° pivoting and adjustable positioning without protruding parts, thus optimizing compactness and protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the lighting means is fixed in a recess and can be extracted by pivoting around a hinge axis, then the device provides orientation capability, but the lighting means cannot be completely housed in the casing and protrudes when deployed
Solution Approach 1:
The patent introduces a second rotation axis perpendicular to the first hinge axis, enabling the lighting means to rotate in two dimensions. This dual-axis rotation system allows the lighting means to be completely retracted into the casing while providing full orientational capability when deployed, resolving the contradiction between compactness and adaptability.
2Adaptability or versatility
If the lighting means protrudes from the casing when deployed, then orientation is possible, but packaging and protection against shocks are compromised
Solution Approach 1:
By adding the second rotation axis perpendicular to the housing face, the lighting means can achieve full 360-degree orientation while retracting completely into the casing. This dual-axis mechanism allows the lighting means to be fully protected within the casing during transport and storage, eliminating protrusion and improving shock protection while maintaining deployment flexibility.
3Volume of moving object
If the lighting means is completely housed in the casing, then compactness and protection are improved, but orientation capability is limited
Solution Approach 1:
The patent employs two dynamic rotation axes: one hinge axis allowing the lighting means to pivot between retracted and deployed positions, and a second axis perpendicular to the housing face enabling 360-degree rotation when deployed. This dynamic two-axis system allows the lighting means to transition between completely housed (compact) and fully oriented (versatile) states, resolving the contradiction between compactness and orientation capability.
Data Source
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Figure 3A~6
AI summary
The present invention relates to a safety lighting device (1) which comprises a casing which houses at least one lighting means (6) movable between a retracted position and an extended position relative to a surface (7) of said casing (2). The device is characterised in that said lighting means is pivotably mounted about axes (X1, X2, X3, X4) that are parallel to said surface (7) of the casing, on an annular cradle (8) contained inside said casing, comprising an upper edge (84) and a lower edge (85) and defining a recess inside of which said lighting means is housed in the retracted position thereof, said annular cradle (8) in turn being mounted pivotably on the inner side (74) of said surface (7) of said housing (2), about an axis (X5) perpendicular to said surface (7), and so that said recess communicates with a through-opening (72) made in said surface (7), said through-opening (72) being capable of defining a passage for said lighting means moved between the retracted position thereof and the extended position thereof, and vice versa.