Lamp Cover Interlocking Hook for Reaction Bearing Attachment
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Solution Overview
Problem
Generic lamp components, particularly light source covers made from polycarbonate and polymethylmethacrylate, face challenges in attachment due to differing elastic properties, leading to complex torque measurement and potential damage during assembly, especially in automated fabrication.
Innovation Solution
The use of interlocking elements with pivotable hooks, where the pivot axis is strategically positioned to accommodate both materials, allowing for a single-step attachment that distributes tension and prevents deformation, enabling secure fixation on various reaction bearings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate fasteners like screws or interlocking pins are used to attach lamp components, then the attachment reliability is improved, but the device complexity and fabrication difficulty increase due to torque measurement requirements
Solution Approach 1:
The patent merges the attachment function directly into the lamp component cover by integrating an interlocking element with a wedge-shaped hook that engages with a reaction bearing. This eliminates the need for separate fasteners like screws or pins, simplifying the fabrication process while maintaining secure attachment. The interlocking element is formed as part of the cover structure itself, combining the cover and attachment mechanism into a single integrated component.
Solution Approach 2:
The interlocking element is designed to be self-attaching without requiring external fastening tools or torque measurement equipment. The wedge-shaped hook automatically engages with the reaction bearing through a snap-fit or click mechanism, allowing the lamp component to secure itself during assembly. This self-service attachment mechanism eliminates the need for complex torque control systems while ensuring reliable fixation.
2Strength
If separate fasteners are used to secure lamp components, then the fixation strength is improved, but the ease of operation deteriorates due to complex torque measurement and limiting procedures
Solution Approach 1:
The interlocking element automatically secures the lamp component to the reaction bearing without requiring operators to measure or control torque. The wedge-shaped hook design provides inherent mechanical advantage, allowing strong fixation through simple insertion and engagement actions. This eliminates complex torque measurement procedures while maintaining robust attachment strength.
Solution Approach 2:
The patent replaces the mechanical screw-and-nut fastening system with a wedge-shaped interlocking hook that engages through geometric interlocking rather than threaded engagement. This substitution eliminates the need for torque control mechanisms while providing equivalent or superior fixation strength through the wedge geometry and snap-fit engagement with the reaction bearing.
3Object-affected harmful factors
If torque is maintained within particular tolerances during assembly, then the damage prevention is improved, but the measurement precision requirements increase
Solution Approach 1:
The patent replaces the torque-controlled screw fastening system with a wedge-shaped interlocking hook that engages through geometric constraints rather than rotational force control. This eliminates the need for precise torque measurement equipment and procedures while preventing damage through the inherent mechanical design of the interlocking mechanism, which naturally limits engagement forces.
Solution Approach 2:
The interlocking element provides self-limiting engagement forces through its wedge geometry and snap-fit design, automatically preventing excessive forces that could damage the lamp component or reaction bearing. This self-regulating mechanism eliminates the need for external torque measurement and control systems while protecting against assembly damage.
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
This solution simplifies the assembly process by allowing a single-step attachment of lamp components to reaction bearings, ensuring secure fixation and preventing damage, while accommodating the elastic and brittle properties of polycarbonate and polymethylmethacrylate, respectively.
Implementation Method 1
the first interlocking hook is supported in the interlocking element in a spring elastic and pivotable manner
Data Source
AI summary
An optical light source cover configured to be fixed at a reaction bearing, the optical light source cover including an interlocking element configured to attach the optical light source cover at the reaction bearing, wherein the interlocking element includes an interlocking arm, wherein the interlocking arm extends from the optical light source cover in an insertion direction of the optical light source cover into the reaction bearing and includes a free end that is in front in the insertion direction and a connected end that is connected to the optical light source cover, wherein the interlocking element includes a first interlocking hook that is wedge shaped, wherein a first wedge tip of the first interlocking hook is oriented in a direction towards the free end of the interlocking element.