Slim Cable Recoiler Structure With Hook-Coupled Metal Plates
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Solution Overview
Problem
Conventional recoilers suffer from bending deformation and increased thickness due to the use of injected plastic and bolts, which can lead to separation of components during cable pulling and storage, compromising structural integrity and usability.
Innovation Solution
A slim type recoiler design utilizing metal plates for the body and reel drum components, eliminating the need for bolts by using a hook-coupling mechanism between plates and press-fit protrusions to enhance strength and stability, while maintaining a reduced thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If injected plastic is used for the body and reel drum to reduce manufacturing cost, then manufacturing cost is reduced, but bending deformation occurs and thickness increases to prevent breakage
Solution Approach 1:
The patent employs composite construction by combining plastic material for the body with metal bolts for fastening components. This composite approach allows the plastic body to maintain its cost advantage while the metal bolts provide the necessary structural strength to prevent bending deformation and breakage during cable pulling operations.
2Strength
If plastic thickness is increased to prevent bending deformation and breakage, then strength is improved, but the recoiler thickness becomes thicker
Solution Approach 1:
The patent uses composite materials (plastic body with metal reinforcement elements) to achieve high structural strength without increasing the overall thickness of the recoiler. The metal bolts and reinforced connection structures provide the necessary strength to prevent bending and breakage while maintaining a compact, thin profile.
Solution Approach 2:
The recoiler is divided into multiple functional components (body, reel drum, substrate, connection rings, tension pieces) that are separately optimized and then assembled. This segmentation allows each component to be designed for its specific function, enabling the overall structure to achieve high strength with minimal thickness through precise component design rather than uniformly thick construction.
3Reliability
If bolts are used to fasten substrates to the reel drum and plates to each other to maintain connection state, then connection stability is improved, but bending deformation occurs in the reel drum and plates
Solution Approach 1:
The patent applies local reinforcement at specific critical connection points rather than uniformly strengthening the entire structure. Metal bolts are strategically positioned at key fastening locations (substrate to reel drum, plates to each other) to provide localized strength where connection stability is most needed, while the rest of the structure maintains its thin, deformation-free profile.
Solution Approach 2:
The patent employs composite construction by combining plastic material for the body with metal bolts for fastening components. This composite approach allows the plastic body to maintain its cost advantage while the metal bolts provide the necessary structural strength to prevent bending deformation and breakage during cable pulling operations.
4Ease of operation
If a planar connection ring and rounded tension piece are used to maintain connection during cable pulling, then connection functionality is achieved, but the tension piece separates from the second substrate due to repeated external force
Solution Approach 1:
The patent incorporates pre-designed reinforcement structures and secure fastening mechanisms at the connection points between tension pieces and substrates. These preventive measures are built into the structure beforehand to withstand the repeated external forces applied during cable pulling operations, preventing separation without interfering with the cable pulling functionality.
Solution Approach 2:
The patent applies local reinforcement at specific critical connection points rather than uniformly strengthening the entire structure. Metal bolts are strategically positioned at key fastening locations (substrate to reel drum, plates to each other) to provide localized strength where connection stability is most needed, while the rest of the structure maintains its thin, deformation-free profile.
Data Source
AI summary
Provided is a slim type recoiler. The recoiler includes a body having a side wall member, an upper wall member, a lower wall member, and having an accommodating space formed inside the body, a reel drum which is mounted in the accommodating space such that the reel drum is capable of being rotated and on which a first cable is wound, a first substrate coupled to a lower surface of the reel drum and provided with first and second connection rings to which two conducting wires of the first cable are respectively connected, and a second substrate coupled to an upper surface of the lower wall member of the body, the second substrate being provided with first and second tension pieces to which two conducting wires of a second cable are respectively connected and which are respectively connected to the first and second connection rings.