Cable Feedthrough Frame with Movable Hooks for One-Side Mounting
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Solution Overview
Problem
Existing apparatuses for feeding elongated strands through apertures in plates, such as control cabinets, require complex assembly and disassembly due to screw-based fastening systems, necessitating complete disassembly to replace strands and being time-consuming, especially under varying conditions.
Innovation Solution
The apparatus employs hooks with link elements that can be moved transversely to fasten the frame to the plate without accessibility from the opposite side, using a screw/thread combination or clamping elements, allowing for easy assembly and disassembly from one side and accommodating tolerances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screw-based fastening systems are used to attach the frame to the plate, then reliable fastening is achieved, but complete disassembly is required to replace strands and the process becomes time-consuming
Solution Approach 1:
The fastening system is segmented into multiple independent snap-fit fasteners distributed around the frame perimeter, allowing partial disassembly for strand replacement without requiring complete removal of all fastening elements
Solution Approach 2:
The screw-based fastening mechanism is extracted and replaced with snap-fit fasteners that engage with recesses in the plate, enabling tool-free or simplified fastening and release operations
2Reliability
If screw-based fastening systems are used, then secure attachment is achieved, but accessibility from both sides of the plate is required
Solution Approach 1:
The fastening mechanism is inverted from a screw-thread system requiring nut access on the opposite side to a snap-fit system where the fastening action is accomplished from the single side where the frame is assembled
Solution Approach 2:
The nut and washer components requiring backside access are extracted from the fastening system, replaced by snap-fit fasteners that achieve secure attachment through elastic engagement with plate recesses from the front side only
3Reliability
If multiple screws are used to fasten the cover, then secure connection is achieved, but all screws must be loosened to open the cover for strand replacement
Solution Approach 1:
The cover fastening system is segmented into multiple independent snap-fit fasteners, allowing the cover to be opened by releasing only the necessary fasteners rather than all fasteners simultaneously
Solution Approach 2:
The multi-screw fastening system is extracted and replaced with snap-fit fasteners that can be individually engaged and disengaged, simplifying the operation of opening and closing the cover
Data Source
AI summary
The invention relates to an apparatus for feeding elongated strands through an aperture in a plate having a divided frame, which comprises a frame bottom part and a frame cover which are divided transversely to the running direction of the elongated strands to be inserted, and which has at least one chamber for the insertion of at least one elastic grommet, wherein the frame has devices for fastening the frame to the plate. The apparatus according to the invention is characterized in that the devices comprise hooks for fastening the frame in the aperture of the plate or in fastening holes in the plate, wherein at least two hooks are provided which are designed to be movable relative to one another, wherein at least one of the hooks is designed as part of or movable indirectly by a link element which is movable relative to the frame via a fastening element transversely to the running direction of the accommodated elongated strands.


