Handheld Holder Clamping Mechanism for Secure Phone Mounting

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Solution Overview

Problem

Current holders for handheld devices, such as mobile phones, do not provide a secure clamp during use on personal transport vehicles, leading to the risk of the phone dropping and potential damage.

Innovation Solution

A holder with a fixed portion and a moveable portion, featuring toothed racks and an actuation mechanism, which allows the moveable portion to engage and disengage from the fixed portion, providing a secure clamp for the mobile phone.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a simple holder structure is used, then the device is easy to manufacture and operate, but the handheld device is not securely clamped and may drop during driving

Engineering Contradiction:
Improvesecurity of clampingVSAvoidholder structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The holder employs a moveable portion that can transition between engaged and disengaged configurations relative to the fixed portion. The actuation mechanism enables dynamic adjustment of the clamping state, allowing the holder to securely grip the handheld device during driving while permitting easy installation and removal. This dynamic structure resolves the contradiction by providing reliable clamping only when needed, rather than requiring complex permanent fixation structures.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The holder is divided into distinct functional segments: a fixed portion with first and second engaging portions, and a moveable portion with third and fourth engaging portions. This segmentation allows independent optimization of each component - the fixed portion provides stable mounting while the moveable portion delivers secure clamping. The modular design achieves reliable security without requiring an overly complex monolithic structure.

Inventive Principle:
Principle #1Segmentation

2Reliability

If a secure clamp is implemented using toothed racks and actuation mechanism, then the handheld device is firmly held, but the device complexity increases

Engineering Contradiction:
Improvesecurity of clampingVSAvoidholder structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The toothed rack engaging portions work together with the actuation mechanism to create a self-reinforcing clamping system. When the actuation mechanism moves the moveable portion into the engaged configuration, the toothed racks automatically interlock to provide secure clamping without requiring additional locking components. The mechanical advantage of the toothed engagement provides inherent security, reducing the need for complex auxiliary fixation mechanisms.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP4538579A1Holder for a handheld device
Publication Date: 2025.04.16 WIND MOBILITY TECH BEIJING CO LTD
  • EP4538579A1 patent drawingFigure 1
  • EP4538579A1 patent drawingFigure 2
  • EP4538579A1 patent drawingFigure 3

AI summary

A holder (100) for a handheld device includes a fixed and moveable portions (102, 104). The fixed portion includes a first engaging portion (108a) and a second engaging portion (108b). The moveable portion includes a third engaging portion (150a) to engage with the first engaging portion, a fourth engaging portion (150b) to engage with the second engaging portion, and an actuation mechanism (140) to selectively actuate the moveable portion between an engaged and a moving configuration. The engaged configuration is when the third engaging portion is moved towards and engages the first engaging portion, and the fourth engaging portion is moved towards and engages the second engaging portion. The moving configuration is when the third engaging portion is moved away from and disengages the first engaging portion and the fourth engaging portion is moved away from and disengages the second engaging portion, allowing the moveable portion to move relative to the fixed portion.