Tool-Free Lamp Fastening System With Spring-Loaded Hooks
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Solution Overview
Problem
Existing fastening systems for lamps are complex and unsatisfactory in terms of usability, particularly during disassembly, as they often require mechanical intervention and can cause the lighting element to get caught or jammed in the support unit.
Innovation Solution
A fastening system featuring a combination of rigid and movable hooking means, where the movable hooking means can be locked in an open position for tool-free disassembly, allowing the lighting element to be removed without hindrance, utilizing sliding surfaces and spring sections for easy assembly and disassembly, and optionally using gravity for interlocking engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rigid fastening system is used to secure the luminaire element, then the fastening is reliable, but the disassembly requires tools and is complex
Solution Approach 1:
The support hook is designed as a movable, spring-loaded component that can dynamically change its position. During assembly, the hook is compressed and guided into the element hook by the luminaire element's weight. During disassembly, the hook can be easily released by lifting the element, allowing tool-free operation while maintaining secure fastening when engaged.
Solution Approach 2:
The fastening system utilizes the weight of the luminaire element itself to drive the engagement process. The element's weight automatically compresses the spring-loaded support hook and guides it into the element hook, eliminating the need for additional fastening tools or complex mechanisms. The system serves itself by using the load to be secured as the actuating force.
2Ease of operation
If the element hook is completely released during disassembly, then the element can be removed without snagging, but the fastening mechanism becomes more complex
Solution Approach 1:
The fastening mechanism is divided into two distinct functional components: the element hook (rigid, fixed to the luminaire element) and the support hook (movable, spring-loaded, fixed to the support unit). This segmentation allows each component to perform its specific function independently - the element hook provides the engagement geometry while the support hook provides the movable, self-actuating fastening action, simplifying the overall design.
Solution Approach 2:
The spring-loaded support hook acts as an intermediary between the rigid element hook and the support unit. It mediates the engagement and disengagement processes by providing a movable, compliant interface that can be easily actuated by the luminaire element's weight during assembly and easily released during disassembly, preventing snagging while maintaining security.
3Ease of operation
If a movable hooking means is used for easy disassembly, then the handling is improved, but the fastening may become less secure
Solution Approach 1:
The element hook is designed with a curved, hook-shaped geometry that provides a mechanical interlock with the support hook. This curved geometry creates a geometric lock that prevents the support hook from disengaging under normal load conditions, ensuring secure fastening while the spring-loaded nature of the support hook maintains ease of operation.
Solution Approach 2:
The spring-loaded support hook is pre-compressed and pre-positioned to engage with the element hook before the luminaire element is fully installed. This preliminary engagement ensures that the fastening is secure from the moment the element is mounted, while the spring mechanism remains ready for easy release during disassembly.
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
Enables easy, tool-free assembly and disassembly of lighting elements on support units, improving handling and simplifying the mounting process while ensuring secure fastening and non-destructive detachment.
Implementation Method 1
the movable interlocking means is spring-elastic and can be moved by means of the spring elasticity between a closed position in which the movable interlocking means is in the interlocking engagement with the rigid interlocking means and an open position in which the movable interlocking means is released from the interlocking engagement
Implementation Method 2
at least one locking means is provided for the movable hooking means, and that the movable hooking means can be locked in its opening position with the aid of the locking means
Implementation Method 3
utilizing sliding surfaces and spring sections for easy assembly and disassembly, and optionally using gravity for interlocking engagement
Data Source
Figure 1
Figure 2a~2d
Figure 3a~4
AI summary
The invention provides a fastening system (1) for a luminaire (2) for tool-free mounting of a luminaire element (4) to a support unit (3) by means of two complementary locking means, comprising at least one element hook (17, 18) associated with the luminaire element (4) and at least one support hook (20) associated with the support unit (3), wherein, by means of a defined mounting movement (M) of the luminaire element (4) in a first direction of movement towards the support unit (3), a locking of the element hook (17, 18) and support hook (20) can be effected for the purpose of fastening the luminaire element (4) in an operating position (B), wherein either the element hook (17, 18) or the support hook (20) is designed as a rigid locking means (15), and either the support hook (20) or the element hook (17, 18) is designed as a movable locking means (16) in order to achieve an open position by means of this mobility. allowso that an interlocking engagement (24) of the support hook (20) with the element hook (17, 18) can be established, and that at least one locking means (25) for the movable interlocking means (16) is provided for tool-free disassembly of the luminaire element (4), and that the movable interlocking means (16) can be locked in its open position with the aid of the locking means (25).