Wire Pressing Device Fulcrum Mechanism for Extension Arm
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Solution Overview
Problem
Conventional extension arm support mechanisms experience issues with smooth sliding movement of the sliding cover relative to the extension arm, which can damage the wire assembly if it does not fit perfectly in the channel, leading to potential damage and operational inefficiencies.
Innovation Solution
A wire pressing and holding device with a cover plate, engaging protrusion, and releasably retaining member is mounted on the extension arm, allowing for secure engagement and disengagement of the wire assembly within the channel, ensuring smooth operation and protection against damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wire assembly is received in the channel formed by the extension arm and sliding cover, then the wire assembly is protected and organized, but the sliding movement of the sliding cover becomes less smooth and the wire assembly may be damaged
Solution Approach 1:
The wire pressing and holding device is divided into separate functional components: a cover plate to close the channel, an engaging protrusion for fulcrum action, and a releasably retaining member for securing the wire. This segmentation allows each component to perform its specific function independently, resolving the conflict between wire protection and sliding smoothness.
Solution Approach 2:
The releasably retaining member acts as an intermediary between the wire assembly and the channel walls. It provides controlled contact points that secure the wire without creating continuous friction, thereby maintaining both wire protection and sliding smoothness.
2Adaptability or versatility
If the wire assembly does not fit perfectly in the channel, then installation is more flexible, but the wire assembly is easily pulled and damaged by sliding movement
Solution Approach 1:
The releasably retaining member provides localized securing points at specific positions within the channel. This allows the wire assembly to have flexible fit in general while being firmly held at critical locations, preventing damage during sliding movement without requiring perfect fit throughout the entire channel.
Solution Approach 2:
The retaining member is designed to be releasably engaged, allowing dynamic adjustment between a secured state (preventing wire damage) and a released state (allowing installation/removal flexibility). This dynamic characteristic resolves the contradiction between adaptability and reliability.
3Ease of operation
If a sliding cover is used to allow wire passage, then wire accessibility is improved, but the sliding movement may damage the wire assembly
Solution Approach 1:
The releasably retaining member serves as an intermediary that mediates between the sliding cover movement and the wire assembly. It provides controlled contact that prevents the sliding cover from directly damaging the wire, while still allowing the cover to slide for wire accessibility.
Solution Approach 2:
The engaging protrusion and retaining member are positioned beforehand to create a fulcrum and securing point before sliding movement occurs. This pre-positioned structure cushions and guides the sliding motion, preventing wire damage while maintaining accessibility.
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 device effectively holds and presses the wire assembly in place, enhancing the smoothness of the sliding movement and preventing damage, while allowing for easy installation and removal, thus improving the functionality and reliability of the extension arm support mechanism.
Implementation Method 1
the releasably retaining member is elastically deformable to be pressed against the inner channel wall surface
Implementation Method 2
The engaging protrusion projects from the first end to be inserted into the engaging recess to serve as a fulcrum such that the second end of the cover plate is turnable relative to the first extension arm
Data Source
AI summary
A wire pressing and holding device is removably mounted on a first extension arm of an extension arm support mechanism to cover a channel thereof, and includes a cover plate, an engaging protrusion projecting from a first end of the cover plate to be inserted into an engaging recess of the arm to serve as a fulcrum such that a second end of the cover plate is turnable relative to the arm, and a releasably retaining member connected to the second end and configured to be displaceable relative to the second end between a retaining position to retainingly abut against the arm for pressing and holding a wire assembly in the channel, and a releasing position to be disengaged from the arm.