Spring-Retained Attachment Assembly for Ring Scanner Reorientation

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Solution Overview

Problem

Wearable electronic devices, such as ring scanners, require users to detach and reorient the device for left- or right-handed operation, disrupting workflow and limiting ergonomic flexibility.

Innovation Solution

An attachment device with pivotally coupled subassemblies allows for 360° rotation of the electronic device, facilitated by a spring component and retainer mechanism, enabling easy switching between left- and right-handed use without detaching the device from the user's body.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the wearable electronic device is made fixed and non-rotatable, then the device structure is simple and stable, but the user cannot switch between left- and right-handed operation without detaching the device

Engineering Contradiction:
Improvehandedness adaptabilityVSAvoidattachment device structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The attachment device is divided into two rotatable subassemblies: a first subassembly that attaches to the user's finger and a second subassembly that holds the electronic device. This segmentation allows independent rotation of each subassembly, enabling flexible handedness adaptation while maintaining a relatively simple overall structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The attachment device incorporates rotatable joints with spring components that allow dynamic adjustment between fixed and rotatable states. The springs provide controlled resistance to rotation, enabling the device to transition between stable fixed positions and adjustable orientations for different handedness configurations.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If the electronic device is made rotatable to allow handedness switching, then the ergonomic flexibility is improved, but the device structure becomes more complex

Engineering Contradiction:
Improvehandedness switching easeVSAvoidattachment device structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The rotatable subassemblies incorporate spring components that provide controlled resistance to rotation, enabling smooth and ergonomic adjustment between different orientations. The springs allow the device to be easily rotated to the desired position while maintaining stability once positioned, improving ease of operation without requiring complex locking mechanisms.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The spring components act as intermediaries between the user's rotational input and the electronic device's final position. They provide tactile feedback and controlled resistance during rotation, making the handedness switching process more intuitive and easier to operate.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Adaptability or versatility

If the user detaches the device from the body to switch handedness, then the device can be reoriented, but the workflow is interrupted and productivity decreases

Engineering Contradiction:
Improvehandedness adaptabilityVSAvoidworkflow continuity
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The rotatable subassemblies enable the user to switch between left- and right-handed operation while the device remains attached to the finger. The springs facilitate smooth rotation to the desired orientation, allowing continuous workflow without detachment and thereby maintaining productivity.

Inventive Principle:
Principle #15Dynamics

4Stability of the object's composition

If the spring component is made stronger to hold the device firmly, then the device stability is improved, but the rotation effort required increases

Engineering Contradiction:
Improvedevice stabilityVSAvoidrotation force
Core Design Contradiction:
Stability of the object's compositionVSForce

Solution Approach 1:

The spring component's force characteristics are optimized to provide adequate holding strength for device stability while maintaining reasonable rotation effort. The spring constant and pre-load are tuned to balance between firm retention during use and ease of rotation for handedness switching.

Inventive Principle:
Principle #35Parameter changes

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

Enhances user productivity by allowing seamless switching between handed operations without interrupting workflow, providing ergonomic flexibility and stability during scanning tasks.

Implementation Method 1

The spring component is coupled to the retainer component. The spring component is housed in the first cavity.

Methodology Applied
Scientific EffectSpring: Spring

Data Source

PatentEP4036788B1An attachment device
Publication Date: 2023.10.11 HAND HELD PRODS INC
  • EP4036788B1 patent drawingFigure 1
  • EP4036788B1 patent drawingFigure 2
  • EP4036788B1 patent drawingFigure 3

AI summary

The present disclosure provides an attachment device comprising a first subassembly, comprising a mounting component, a retainer component, coupled to a second subassembly comprising a first rotatable component, a second rotatable component, and a trigger assembly. The mounting component comprises an opening defining at least one slot. The retainer component is coupled to the mounting component defining a first cavity. The spring component, housed in the first cavity, is coupled to the retainer component. The first rotatable component is coupled to the second rotatable component to define a second cavity extending from a first surface of the first rotatable component to a second surface of the second rotatable component. A trigger actuator of the trigger assembly is housed in the second cavity. The first rotatable component defines at least one tab defined to be received within the at least one slot of the mounting component.