Cover material fastening clip
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Solution Overview
Problem
Existing cover-material fastening clips require precise positioning and strong force to attach to wires due to limited elastic deformation, which affects work efficiency and increases clip size, hindering design flexibility and cushioning properties.
Innovation Solution
A cover-material fastening clip design featuring a guide piece with a bent portion that can be elastically deformed to widen the insertion opening, allowing easy attachment with a weak force, while maintaining high attachment strength and compact size through a reinforced hook and locking mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the guide piece and hook are made rigid to maintain structural strength, then attachment strength is improved, but a large force is required to pass the wire through the insertion opening
Solution Approach 1:
The guide piece is segmented into a rigid proximal portion (connected to the locking portion) and a flexible distal portion (elastic piece portion). This segmentation allows the proximal portion to maintain structural strength while the distal portion provides elastic deformation to widen the insertion opening, reducing the force required for attachment.
Solution Approach 2:
Different portions of the guide piece have different mechanical properties: the proximal portion is rigid to maintain overall structural strength, while the distal portion is flexible to enable elastic deformation. This local quality differentiation resolves the contradiction between strength and ease of attachment.
2Ease of operation
If the lengths of the wire guide piece and hook are increased to increase the movable range and widen the insertion opening, then the wire can pass through more easily, but the size of the cover-material fastening clip is increased
Solution Approach 1:
The elastic piece portion is designed with specific dimensional parameters (length, width, thickness) that optimize its elastic deformation characteristics. By carefully controlling these parameters, the guide piece can achieve sufficient insertion opening width without increasing the overall clip size, maintaining compact dimensions while enabling easy wire attachment.
3Reliability
If precise positioning is required for the guide piece to align with the wire, then the locking mechanism is more reliable, but work efficiency is reduced
Solution Approach 1:
The guide piece is preliminarily positioned to define an insertion opening that guides the wire into place. The elastic deformation of the distal portion automatically adjusts the opening width during attachment, eliminating the need for precise manual positioning while ensuring reliable locking after attachment.
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
Enables simple and efficient attachment to wires with reduced operational force, enhancing work efficiency and attachment strength while maintaining compact dimensions and design flexibility.
Implementation Method 1
a distal end portion of the guide piece extending from the bent portion is an elastic piece portion capable of being elastically deformed to be spaced from the distal end portion and thus to widen the insertion opening
Data Source
AI summary
A cover-material fastening clip includes a locking portion having a guide piece and a hook which includes an extension portion and a distal end portion. The guide piece extends includes a bent portion bent and extended toward the distal end portion. An insertion opening having a predetermined gap and allowing a wire to be inserted therethrough is positioned between the bent portion and the distal end portion. A distal end portion of the guide piece extending from the bent portion is an elastic piece portion being elastically deformed to be spaced from the distal end portion and to widen the insertion opening. In a part of the locking portion, which is located within a range, in which the elastic piece portion can be elastically deformed and thus moved, an escape space is provided to allow a distal end of the elastic piece portion to be positioned therein.