Envelope Making Plate Acute Angle Marking Groove Design

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Solution Overview

Problem

Existing envelope making plates have an obtuse angle between the marking groove and scale line, leading to inefficient use of space, reduced rigidity, and increased material usage, as well as difficulties in aligning folding lines due to the larger plate size.

Innovation Solution

The envelope making plate features a marking groove intersecting with a reference edge at an acute angle, allowing for full utilization of the plate body's area, with a second indication line perpendicular to the marking groove for improved alignment and a guiding groove for easier folding line marking, along with a card maker on the back for enhanced functionality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If the angle between the marking groove and the scale line is set as an obtuse angle of 135 degrees, then the plate body can accommodate the marking groove and scale line, but the breadth of the plate body becomes larger and the flat space of the plate body cannot be fully utilized

Engineering Contradiction:

Improveflat space of plate bodyVSAvoidbreadth of plate body

Core Design Contradiction:

Area of stationary objectVSDevice complexity

Solution Approach 1:

The patent changes the angle parameter from 135 degrees (obtuse) to 45 degrees (acute) between the marking groove and the reference edge. This parameter change allows the scale line to be positioned on the acute angle side, enabling full utilization of both front and back surfaces of the plate body while reducing the overall breadth requirement.

Inventive Principle:

Principle #35Parameter changes

2Strength

If the plate body is made larger to accommodate the obtuse angle design, then the marking groove and scale line can be positioned, but the rigidity and intensity of the plate body become insufficient

Engineering Contradiction:

Improverigidity and intensity of plate bodyVSAvoidsize of plate body

Core Design Contradiction:

StrengthVSArea of stationary object

Solution Approach 1:

By changing the angle parameter to 45 degrees, the patent achieves a more compact plate body design that maintains sufficient rigidity and intensity without requiring excessive size, while still accommodating all necessary functional elements.

Inventive Principle:

Principle #35Parameter changes

3Strength

If a reinforcing rib is added on the back of the plate body to ensure rigidity, then the front of the plate body can work normally, but the use of the space on the back of the plate body has to be abandoned

Engineering Contradiction:

Improverigidity of plate bodyVSAvoidusable space on back of plate body

Core Design Contradiction:

StrengthVSArea of stationary object

Solution Approach 1:

The patent avoids adding reinforcing ribs by changing the angle parameter to 45 degrees, which allows the plate body to maintain sufficient rigidity through its geometric configuration alone. This enables full utilization of both front and back surfaces for functional purposes without sacrificing structural integrity.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent employs asymmetric positioning of the marking groove at 45 degrees to the reference edge, with the scale line positioned on the acute angle side. This asymmetric design optimizes space utilization and maintains rigidity without requiring additional reinforcing elements that would block back surface usage.

Inventive Principle:

Principle #4Asymmetry

4Area of stationary object

If the angle between the marking groove and the scale line is set as an acute angle, then the plate body area can be fully utilized, but the alignment of folding lines becomes more challenging

Engineering Contradiction:

Improveutilization of plate body areaVSAvoidalignment of folding lines

Core Design Contradiction:

Area of stationary objectVSEase of operation

Solution Approach 1:

The patent sets the angle parameter to 45 degrees (acute angle) between the marking groove and the reference edge, with the scale line positioned on the acute angle side. This parameter optimization enables full utilization of both front and back surfaces of the plate body while maintaining ease of operation through proper geometric configuration.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS10000034B2Envelope Making Plate

Publication Date: 2018.06.19 PARRIC NINGBO STATIONERY & GIFTS MFG

AI summary

The present patent application discloses an envelope making plate. The envelope making plate includes a plate body with a marking groove, a reference edge; and a scale line or an indication line corresponding to the type of the envelope. The plate body is divided into a working area and a non-working area by the reference edge. The envelope paper abuts against or aligns with the reference edge. One side of the envelope paper is the working area, and another side is the non-working area. The marking groove is set in the working area of the plate body and intersects with the reference edge or an extension line of the reference edge. The marking groove divides the reference edge or the extension line of the reference edge into an acute angle and an obtuse angle. The scale line or the indication line corresponding to the type of the envelope is set along the reference edge and on the side where the marking groove and the reference edge form the acute angle. A second indication line is set in the non-working area of the plate body and is perpendicular to the marking groove. An extension line or virtual extension line of the second indication line intersects with the marking groove within the working area of the plate body. It is easy to achieve a full utilization of the plate body's area when making the envelope by making the angle between the marking groove and the indication line being as an acute angle. It saves the materials of the plate body.