Ring-Shaped Cake Cutting Aid With Guide Openings

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Solution Overview

Problem

Existing cutting aids for cakes lack precision and safety, making it difficult to achieve uniform and visually appealing layers, and often result in injuries due to insecure holding mechanisms.

Innovation Solution

A ring-shaped cutting aid with guide openings and a clamping closure that securely holds the cake in place, allowing for precise and efficient cutting by preventing relative movement between the cake and the cutting device, which can be a cutting blade or separator plate.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a sharp knife is used to cut cake layers by inserting and rotating, then cutting can be performed with simple tools, but the cutting precision and layer uniformity deteriorate requiring great skill and practice

Engineering Contradiction:
Improvesimplicity of cutting toolVSAvoidlayer uniformity
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

A guiding element with a guide opening is introduced as an intermediary between the knife and the cake. The guide opening receives and guides the knife along a predetermined cutting path, ensuring precise and uniform layer separation without requiring skillful manual rotation. The guiding element acts as a mediator that translates simple knife insertion into precise cutting action.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The cutting process parameters are changed by fixing the knife trajectory through the guide opening. Instead of relying on operator skill to maintain consistent rotation and depth, the guide opening physically constrains the knife movement parameters, ensuring constant cutting depth and uniform layer thickness automatically.

Inventive Principle:
Principle #35Parameter changes

2Device complexity

If holding devices with horizontal cutting slots are used, then cutting can be performed with a frame structure, but secure holding of the bakery product deteriorates leading to imprecise cutting and user injury

Engineering Contradiction:
Improvestructure of cutting deviceVSAvoidsafety and precision
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The guiding element serves as an intermediary that simultaneously provides guiding function and secure holding function. The side walls of the guiding element contact and secure the bakery product during cutting, eliminating the need for separate holding devices. This intermediary structure ensures both precise knife guidance and secure product positioning, preventing user injury from unsecured products.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The guiding and holding functions are merged into a single guiding element. The side walls of the guiding element perform both the guiding function (through the guide opening) and the holding function (by contacting the bakery product). This integration eliminates the need for separate holding devices and ensures coordinated action between guiding and securing the product.

Inventive Principle:
Principle #5Merging (Combining)

3Device complexity

If manual rotation of the cake is used to separate layers, then no additional guiding mechanism is needed, but the ease of operation deteriorates requiring great skill and practice

Engineering Contradiction:
Improvesimplicity of cutting mechanismVSAvoidease of cutting
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The guide opening acts as an intermediary that eliminates the need for manual rotation. By providing a predetermined cutting path, the guide opening allows the knife to automatically follow the correct trajectory, removing the skill-intensive rotation step from the operation.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The guide opening is prepared in advance with a predetermined cutting path that anticipates the required knife trajectory. This preliminary preparation of the guiding structure eliminates the need for real-time skillful manipulation during cutting, as the path is already established.

Inventive Principle:
Principle #10Preliminary action

4Device complexity

If no securing contact is provided between cutting aid and cake, then the cutting aid structure remains simple, but the manufacturing precision of cuts deteriorates

Engineering Contradiction:
Improvestructure of cutting aidVSAvoidcutting precision
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The side walls of the guiding element act as intermediaries that provide securing contact with the bakery product. These walls contact the product to prevent movement during cutting, ensuring precision without adding complex securing mechanisms. The contact is integrated into the basic guiding structure.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP2191722B1Cutting aid
Publication Date: 2012.05.02 ZENKER BACKFORMEN GMBH & CO KG
  • EP2191722B1 patent drawingFigure 1
  • EP2191722B1 patent drawingFigure 2
  • EP2191722B1 patent drawingFigure 3

AI summary

The cutting fixture comprises an annular body (1), which radially limits a chamber (8) for receiving cakes to be cut and has an inner wall (6) for partial arrangement on the edge of the cakes to be cut and three slot-like guide-openings (3) for guiding a device for cutting the cakes, where the guide opening has a width of 8 mm and extends into the annular body at an angle of 150-250[deg] . The annular body has a form of cylindrical sheath. The guide opening vertically passes to a medial longitudinal axis of the annular body. The inner wall passes in the direction of the medial longitudinal axis. The cutting fixture comprises an annular body (1), which radially limits a chamber (8) for receiving cakes to be cut and has an inner wall (6) for partial arrangement on the edge of the cakes to be cut and three slot-like guide-openings (3) for guiding a device for cutting the cakes, where the guide opening has a width of 8 mm and extends into the annular body at an angle of 150-250[deg] . The annular body has a form of cylindrical sheath. The guide opening vertically passes to a medial longitudinal axis of the annular body. The inner wall passes in the direction of the medial longitudinal axis of the annular body, and is provided for the arrangement over the entire circumference of the cakes. The annular body has a height of 5-10 cm. The guide openings are arranged one upon the other and have an identical distance (R) to each other, where the distance is 8 mm. The annular body has first and second clamping ends (9, 10), which are fixable to each other over an overlapping clamping closure. The clamping closure has a clamping part fixed to the second clamping end, and a clamping lever fixed to the first clamping end for connecting with the clamping part. The clamping closure has two receptions for fixing the clamping ends in different parameter points. A holding recess is provided in the first clamping end and a holding lug is provided at the second clamping end for arrestably engaging into the holding recess. The holding recess is formed in a slot-like manner during the holding lug is formed as plate-like holding web. A first grip lug is provided at the first clamping end and a second grip lug is provided at the second clamping end.