Non-Slip Shell With Protruding Inserts for Portable Lighting Grip
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Solution Overview
Problem
Existing portable lighting devices face challenges in achieving effective non-slip performance due to limitations in manufacturing processes, particularly the metal stamping process, which hinders the creation of complex textures on the shell surface, resulting in poor grip and increased risk of accidental sliding.
Innovation Solution
A non-slip shell design featuring a shell body with hollow holes and protruding parts on an internal structural member, which protrude beyond the outer surface, enhancing friction when held by a user, combined with a detachable or integral connection to the shell body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If metal stamping process is used to manufacture the non-slip shell, then manufacturing efficiency and cost-effectiveness are improved, but the ability to form complicated non-slip textures on the shell surface deteriorates
Solution Approach 1:
The invention divides the shell structure into multiple components: a shell body and an internal structural member with protruding parts. The internal structural member is a separate component that can be detached, allowing it to be manufactured independently with complex textures using appropriate processes, while the shell body can be efficiently produced by metal stamping. This segmentation resolves the contradiction by enabling texture complexity in the internal member without compromising the manufacturing efficiency of the overall shell assembly.
2Reliability
If sandblasting, wire drawing, coating, and other processes are applied to the metal non-slip shell, then non-slip texture can be achieved, but the manufacturing complexity and cost increase
Solution Approach 1:
The invention extracts the non-slip texture function from the shell body and relocates it to the internal structural member. The internal structural member incorporates protruding parts that provide the non-slip effect, while the shell body maintains a simpler structure suitable for efficient metal stamping. This extraction eliminates the need for complex post-processing of the shell body, reducing manufacturing complexity and cost while maintaining reliable non-slip performance through the internal member's protruding structure.
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
The design improves grip and reduces the risk of accidental sliding, ensuring safer handling and stability by increasing friction force between the hand and the shell, while simplifying manufacturing processes and expanding production scalability.
Implementation Method 1
When a user holds the shell body, a hand can contact an exposed portion of the protruding part, thereby increasing a friction force between the hand and the shell body
Data Source
Figure 1
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AI summary
Disclosure is a non-slip shell and a portable lighting device. The non-slip shell includes: a shell body (1), where the shell body is provided with at least one hollow hole (3); an internal structural member (2), detachably arranged in the shell body (1); and a protruding part (4), firmly connected or detachably connected to the internal structural member (2) and in one-to-one correspondence with the hollow hole (3), where a portion of the protruding part (4) protrudes from the hollow hole (3) and protrudes relative to an outer surface of the shell body (1). When a user holds the shell body, a hand can contact an exposed portion of the protruding part, thereby increasing a friction force between the hand and the shell body, making it easier for the user to firmly hold the shell body, helping to reduce a risk of accidental slip or out-of-control, and improving overall non-slip performance.