Envelope Outlining Device with Movable Tracing Members

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Solution Overview

Problem

Existing methods are inadequate for producing bespoke envelopes that fit uniquely shaped greeting cards, as they typically require cards to conform to standard envelope sizes rather than allowing cards to be made in any desired shape with a corresponding bespoke envelope.

Innovation Solution

An envelope-outlining device with movable tracing members and triangular protrusions allows for marking out any shape envelope, ensuring flaps overlap neatly when folded, using pivotally and slidably attached tracing members with arcuate slots for secure positioning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If standard envelope sizes are used, then manufacturing simplicity is maintained, but card shape versatility is limited

Engineering Contradiction:
Improvecard shape versatilityVSAvoidenvelope sizing complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The tracing members are made movable relative to each other, allowing the device to adapt to different card dimensions dynamically. The members can be repositioned and resecured to create envelopes of various sizes and shapes, transforming a static tool into a dynamic one that responds to different card dimensions.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The envelope outlining device is divided into separate tracing members that can be independently positioned and secured. This segmentation allows each member to be adjusted to specific card dimensions while maintaining overall device functionality, enabling versatile envelope creation without requiring a complete redesign for each size.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If tracing members are fixed in position, then device simplicity is maintained, but envelope size adaptability is reduced

Engineering Contradiction:
Improveenvelope size adaptabilityVSAvoidtracing member configuration
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The tracing members transition from a fixed configuration to a movable one, allowing users to adjust the distance between members to match different card dimensions. This dynamic adjustment capability enables the device to adapt to various envelope sizes while maintaining operational simplicity through the releasable securing mechanism.

Inventive Principle:
Principle #15Dynamics

3Productivity

If protrusions are positioned at the distal end of tracing edges, then device simplicity is maintained, but envelope marking efficiency is reduced

Engineering Contradiction:
Improveenvelope marking efficiencyVSAvoidprotrusion positioning
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The protrusions are strategically positioned at specific locations along the tracing edges (not at the distal ends) to create optimal envelope flaps. This localized feature placement enables the tracing members to mark envelope outlines with proper flap dimensions in fewer moves, improving marking efficiency without requiring complex device modifications.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The protrusions are pre-positioned at optimal locations on the tracing edges before use, allowing the device to automatically create correctly proportioned envelope flaps during the tracing process. This preliminary configuration eliminates the need for additional adjustment steps or multiple marking passes, thereby improving productivity.

Inventive Principle:
Principle #10Preliminary action

4Volume of moving object

If tracing members are made compact, then device portability is improved, but tracing edge functionality is compromised

Engineering Contradiction:
Improvedevice volumeVSAvoidtracing edge performance
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The tracing members incorporate arcuate (curved) shapes that allow the members to flex and conform to the compact device form factor while maintaining functional tracing edges. The curved geometry enables the members to bend around the connecting member and fit within a smaller volume without compromising the straight-line tracing capability needed for accurate envelope outlines.

Inventive Principle:
Principle #14Spheroidality (Curvature)

Data Source

PatentEP3013599B1Envelope-outlining device and method
Publication Date: 2018.08.08 DAVIES
  • EP3013599B1 patent drawingFigure 1~2
  • EP3013599B1 patent drawingFigure 3~5
  • EP3013599B1 patent drawingFigure 6~8

AI summary

An envelope-outlining device (1) that comprises first and second tracing members (2,3), the members being movable relative to each other. Each tracing member has a respective tracing edge (11,12), and each tracing edge has a protrusion (18,19) extending from the tracing edge. A method of using the same is also disclosed.