Control Cable Attachment Structure with Friction Retention
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Solution Overview
Problem
The existing control cable attachment structures are complex and prone to removal due to tilting, as they rely on engagement grooves and C-shaped cutouts that require a certain load to disengage, leading to unintended detachment under small loads.
Innovation Solution
A simplified control cable attachment structure featuring an anchoring member with a flat plate and a constricted groove, where the attachment part has protruding surfaces that create friction when the cable tilts, preventing removal by bending the anchoring plate and generating a retaining force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the attachment part is anchored to the anchoring member by engaging the engagement groove with the C-shaped cutout and sandwiching the base piece between the flange and lugs, then the attachment part can be more rigidly attached to the anchoring member, but the control cable attachment structure becomes complicated
Solution Approach 1:
The patent extracts and eliminates the base piece and perpendicular piece with C-shaped cutout from the anchoring member, replacing them with a simplified flat plate having a through-hole. This removes unnecessary structural elements while preserving the core anchoring function, thereby reducing complexity without sacrificing attachment rigidity
Solution Approach 2:
The patent merges the anchoring function and the plate structure into a single integrated flat plate component. By combining what were previously separate elements (base piece, perpendicular piece, C-shaped cutout) into one simple plate with a through-hole, the structure becomes less complex while maintaining sufficient anchoring capability
2Reliability
If the C-shaped cutout tapers such that the attachment part is not removed unless a certain degree of load is applied, then the attachment part cannot be easily removed by mere pulling, but the attachment portion may tilt when a load is applied to a point distant from the attachment portion, causing undesired removal under small loads
Solution Approach 1:
The patent applies preliminary action by providing a protrusion on the attachment part that engages with a corresponding recess in the flat plate before the main anchoring engagement occurs. This preliminary engagement prevents tilting from the outset, eliminating the fulcrum effect that would otherwise cause lever-induced removal under small loads
Solution Approach 2:
The protrusion-recess arrangement creates a preliminary anti-action against tilting. By pre-positioning the attachment part in a centered, non-tilted orientation through the protrusion engagement, the system counteracts the potential harmful tilting motion before it can occur, preventing the lever effect that would amplify small loads into detachment
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 structure effectively prevents removal of the control cable by tilting, enhancing stability and simplifying the attachment process while maintaining ease of insertion and reducing the risk of detachment under external loads.
Implementation Method 1
either the protruding portion 61 or the opposite surface 55 of the opposed surfaces abuts on the front and back surfaces of the anchoring plate portion, respectively, to bend the anchoring plate portion, thereby producing friction force
Implementation Method 2
the anchoring plate portion 35 bends, thereby producing friction force to assist a retaining force
Data Source
AI summary
A control cable attachment structure for attaching a control cable to an anchoring member. A plate-part-side attachment groove, includes an anchoring groove in which an attachment part is positioned and anchored, and a constricted part that is connected to the anchoring groove and is narrower than the anchoring groove. The attachment part of the control cable has an engaging part that is engaged by the anchoring groove and is wider than the constricted part, an approximately parallel pair of opposing surfaces respectively opposing the front and rear of a plate surface of the anchor plate part, and an anchoring groove, the surface of which is formed by the pair of opposing surfaces, and in which the peripheral parts of the plate-part-side attachment grove of the anchor plate part engage. The one opposing surface is provided with a protruding part that protrudes toward the other opposing surface.