Touch Pen Holder with Wire Locking Clip

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Solution Overview

Problem

Touch pens provided with mobile devices are often lost or stolen when users leave them unattended, and existing solutions either increase the pen's cost or compromise its design, lacking a practical and competitive solution for secure attachment.

Innovation Solution

A touch pen holder unit featuring a storage container connected to a wire with a locking mechanism, comprising a body with locking grooves and a housing that securely fastens the pen, preventing unintentional detachment through a '⊏' shaped locking clip.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a cable spool part is integrated into the touch pen to prevent loss, then loss prevention is improved, but the touch pen price increases and product competitiveness decreases

Engineering Contradiction:
Improveloss preventionVSAvoidproduct competitiveness
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the loss prevention function from the touch pen itself and places it in a separate holder unit. The holder contains the cable spool mechanism and locking structure, while the touch pen only needs a simple head portion with a groove. This separation eliminates the need to integrate complex mechanisms into the pen, maintaining its simplicity and competitiveness while achieving reliable loss prevention through the holder's locking mechanism.

Inventive Principle:
Principle #2Taking out (Extraction)

2Reliability

If a locking mechanism is added to secure the touch pen, then loss prevention is improved, but the attachment and detachment process becomes more complex

Engineering Contradiction:
Improveloss preventionVSAvoidattachment and detachment
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent employs a dynamic locking mechanism where the locking protrusion can freely move between locked and unlocked positions. During attachment, the protrusion automatically engages with the groove. During detachment, applying force to the wire causes the protrusion to disengage. This dynamic design allows simple one-handed operation for both attachment and detachment while maintaining secure locking during use.

Inventive Principle:
Principle #15Dynamics

3Reliability

If a secure fastening mechanism is implemented, then loss prevention is improved, but the structure becomes more complex

Engineering Contradiction:
Improveloss preventionVSAvoidstructure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments the fastening system into distinct functional components: the holder body with cable spool, the locking mechanism with protrusion and groove, and the wire connector. Each component has a specific function and can be manufactured independently using simple processes. This segmentation achieves reliable secure fastening while keeping individual component structures simple and easy to manufacture.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP3584683B1Touch pen holder unit
Publication Date: 2020.10.21 KUM OH ELECTRONICS
  • EP3584683B1 patent drawingFigure 1
  • EP3584683B1 patent drawingFigure 2
  • EP3584683B1 patent drawingFigure 3A

AI summary

The present invention relates to a touch pen holder unit for holding a touch pen to prevent loss and, more particularly, a touch pen holder unit capable of fastening a touch pen easily and firmly. The touch pen holder unit includes: a wire having a locking part at an end thereof; and a body having a first locking groove and a second locking groove, in which the locking part of the wire and a head of a touch pen are respectively seated and locked at opposite sides thereof.