Gas Burner Covering Device Anti-Twist Spring Grip

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Solution Overview

Problem

Existing gas burner systems lack a flexible and easy-to-handle solution for adjusting the volume flow of primary air, which varies with different types of gas, and existing covering devices are either complex or inefficient in sealing and preventing twisting.

Innovation Solution

A gas supply device with a covering device featuring a spring-loaded gripping section that can be easily pushed onto the gas supply line, incorporating anti-twist protection elements to secure the device and adjust the cross-sectional area of radial openings, allowing for flexible use with various fuels and ensuring proper sealing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a covering device is designed to be easily assembled and disassembled without tools, then the ease of operation is improved, but the reliability of securing the device to the gas supply line may deteriorate

Engineering Contradiction:
Improveease of assembly and disassemblyVSAvoidreliability of securing
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The covering device is divided into a gripping section with spring elements and a separate covering section. The gripping section can be easily opened and closed to facilitate tool-free assembly and disassembly, while still providing reliable securing through the spring-loaded gripping elements that engage with the gas supply line.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The gripping section incorporates spring elements that provide dynamic gripping force. The springs allow the gripping section to adapt to slight variations in the gas supply line diameter while maintaining secure engagement. The dynamic nature of the spring-loaded grip ensures reliable securing without requiring complex fastening mechanisms.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If the gripping section is spring-loaded to enable easy pushing onto the gas supply line, then the ease of operation is improved, but the device complexity increases

Engineering Contradiction:
Improveease of pushing onto gas supply lineVSAvoidcomplexity of spring-loaded mechanism
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The spring-loaded gripping elements are integrated directly into the gripping section as a unified component rather than being separate assemblies. This merging of the spring mechanism with the gripping section simplifies the overall device structure while maintaining the ease of pushing onto the gas supply line. The covering section is also merged with the gripping section in some embodiments, further reducing complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The spring-loaded gripping section is designed to automatically engage with the gas supply line when the covering device is pushed onto it. The springs provide the necessary gripping force without requiring additional adjustment mechanisms or complex assembly steps. The device essentially assembles itself through the elastic deformation and recovery of the spring elements.

Inventive Principle:
Principle #25Self-service

3Reliability

If anti-twist protection elements are added to prevent twisting of the covering device, then the reliability is improved, but the device complexity increases

Engineering Contradiction:
Improveprevention of twistingVSAvoidcomplexity of anti-twist mechanism
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The anti-twist protection elements feature asymmetric profiles with inclined surfaces that engage with corresponding features on the gas supply line. This asymmetric design prevents rotational movement of the covering device while maintaining a relatively simple overall structure. The inclined surfaces provide mechanical interference that blocks twisting without requiring complex locking mechanisms.

Inventive Principle:
Principle #4Asymmetry

Solution Approach 2:

The anti-twist protection elements are pre-positioned on the covering device during manufacturing. When the covering device is assembled onto the gas supply line, the anti-twist elements automatically engage with the supply line features, preventing twisting before it can occur during operation. This preliminary positioning eliminates the need for adjustable or complex anti-twist mechanisms.

Inventive Principle:
Principle #10Preliminary action

4Adaptability or versatility

If the covering device is designed to adjust the cross-sectional area of radial openings for different gas types, then the adaptability is improved, but the device complexity increases

Engineering Contradiction:
Improveadaptability to different gas typesVSAvoidcomplexity of adjustment mechanism
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The covering device provides discrete adjustment positions for the covering section that correspond to different gas types and their required primary air volumes. Rather than providing continuous adjustment capability, the device offers specific pre-determined opening areas that are sufficient for the main gas types (natural gas, propane, town gas). This partial adjustment approach reduces device complexity while maintaining adequate adaptability.

Inventive Principle:
Principle #16Partial or excessive action

Solution Approach 2:

The covering section is designed to perform multiple functions: it covers the radial opening to restrict primary air flow, it can be positioned at different angles to provide different opening areas, and it incorporates anti-twist protection features. This multi-functionality allows a single component to handle adaptability to different gas types without requiring separate adjustment mechanisms for each function.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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

The solution provides a quick, tool-free assembly and disassembly of the gas supply device, ensuring a high degree of flexibility in fuel types and preventing twisting, while maintaining effective sealing and positioning, thus enhancing the usability and adaptability of the gas burner system.

Implementation Method 1

the gripping section is spring-loaded in such a way that it is bent open when it is pushed onto the gas supply line and thus at least partially grips it in a form-fitting manner

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

The anti-rotation elements can, for example, positively engage in bores, ribs, protrusions or the like provided on an outside of the gas supply line

Methodology Applied
Scientific EffectMechanical engagement: Mechanical Fastener

Data Source

PatentEP2835581B1Gas feed conduit for a gas burner with covering device for covering a radial opening in a gas feed conduit for a gas burner and cooking hob
Publication Date: 2018.03.14 BOSCH SIEMENS HAUSGERATE GMBH
  • EP2835581B1 patent drawingFigure 1
  • EP2835581B1 patent drawingFigure 2
  • EP2835581B1 patent drawingFigure 3

AI summary

The invention relates to a covering device (13) for covering a radial opening (10, 11) in a gas supply line (8) for a gas burner (1), comprising a gripping section which is configured to at least partially grip the gas supply line (8) in a form-fitting manner and to cover the radial opening (10, 11), and a handling section arranged on the gripping section for handling the covering device (13) when the covering device (13) is radially slid onto the gas supply line (8).