Cover-Material Fastening Clip With Rotational Wire Release
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Solution Overview
Problem
Existing cover-material fastening clips require skilled operation to separate from wires due to complex force application requirements and obstacles from cushion materials, leading to poor operability and increased fatigue.
Innovation Solution
A cover-material fastening clip design featuring a claw-shaped hook and a jig receiving part positioned opposite to the engaging part, allowing for simple engagement and separation using a jig that rotates the clip about the wire axis, reducing the need for strong force and complex maneuvers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the jig is inserted into the jig hanging part and laterally moved to separate the fastening clip from the wire, then the engagement is released, but the operation requires considerable skill and is troublesome
Solution Approach 1:
Instead of laterally moving the jig in parallel to deviate the hook from the wire, the invention rotates the fastening clip about the wire axis. This inversion of the separation mechanism simplifies the operation to a single rotational motion, eliminating the need for skillful lateral maneuvering while maintaining effective engagement release.
Solution Approach 2:
The rotation of the fastening clip about the wire axis causes the hook to automatically disengage from the wire through the rotational motion itself, without requiring additional lateral deviation actions. The separation process becomes self-executing through the rotation, reducing operational complexity.
2Ease of operation
If the jig is pulled upward, then the fastening clip separates from the wire, but the jig is easily separated from the jig hanging part
Solution Approach 1:
Instead of pulling the jig upward in parallel, the invention rotates the fastening clip about the wire axis. This rotational motion maintains the jig's engagement with the jig hanging part throughout the separation process, preventing accidental disengagement while achieving wire release.
3Ease of operation
If the jig is moved in the horizontal direction or inclined, then the engagement is released, but the cushion material around the jig becomes an obstacle
Solution Approach 1:
Instead of moving the jig horizontally or inclining it through cushion material, the invention rotates the fastening clip about the wire axis. This rotation occurs within the groove structure, avoiding contact with and deformation of the surrounding cushion material, thus eliminating the interference obstacle.
4Productivity
If strong force is applied to move the jig through cushion material, then the separation operation can be completed, but it takes time and increases operator fatigue
Solution Approach 1:
The rotational separation mechanism requires minimal force compared to pushing through cushion material, significantly reducing operator fatigue. The operation can be completed quickly without the need for strong pushing forces, improving both ease of operation and productivity.
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 design enables efficient and easy separation from the wire with minimal force and operation complexity, improving user efficiency and reducing fatigue by allowing straightforward jig insertion and pulling action.
Implementation Method 1
when the jig is engaged with the jig receiving part and is pulled up in a state where the hook is engaged with the wire, the cover-material fastening clip is rotated about an axis of the wire and the wire is separated from the claw-shaped part of the hook
Implementation Method 2
a lower end portion of the hook part is formed with a jig hanging part having a shape bent toward a side opposite to a part with which the wire is engaged. The jig hanging part is used to separate the fastening clip once attached from the wire. A jig such as a screwdriver is inserted into a groove shape of the bent jig hanging part and a hook material is forcibly elastically deformed outwardly
Data Source
AI summary
There is provided a cover-material fastening clip for connecting a cover material and a cushion material. An engaging part engaged with the cover material. A hook is provided below the engaging part and is formed with: a claw-shaped part engaged with a wire provided in a groove of the cushion material; and a jig receiving part engaged with a jig for separating the hook from the wire. A position at which the jig receiving part is engaged with the jig is located at a side opposite to the engaging part relative to a position at which the hook is engaged with the wire. When the jig is engaged with the jig receiving part and is pulled up, the clip is rotated about the wire and the wire is separated from the claw-shaped part, so that the connection between the cover material and the cushion material is released.