Roaster Cover Supporting Member for Secure Angular Positioning

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Solution Overview

Problem

Conventional ceramic roasters are physically demanding to use due to the heavy ceramic cover, which cannot be securely opened or closed at arbitrary angles, posing a risk of burns from escaping hot air.

Innovation Solution

A cover supporting member with a lower and upper supporting member, pivot shaft, position-limiting members, and an extensible and retractable bar allows the ceramic cover to be lifted and secured at multiple angles, facilitating effortless operation and preventing burns.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the ceramic cover is made heavy to maintain structural integrity and heat retention, then the roasting performance is improved, but the ease of operation deteriorates as users struggle to lift and position the cover

Engineering Contradiction:

Improvestructural integrity and heat retentionVSAvoidease of opening and closing cover

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The spring component acts as a counterweight mechanism that provides upward force to offset the weight of the heavy ceramic cover. When the cover is lifted, the spring extends and stores energy, then releases this energy to assist in holding the cover at elevated positions, thereby reducing the physical effort required by users to operate the heavy cover while maintaining its structural integrity

Inventive Principle:

Principle #8Anti-weight (Counterweight)

2Ease of operation

If the ceramic cover is opened completely to allow access, then the ease of operation is improved, but the safety deteriorates due to hot air rushing out and causing burns

Engineering Contradiction:

Improveaccess to foodVSAvoidhot air exposure causing burns

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The cover supporting member with limiting grooves and position-limiting members creates a dynamic positioning system that allows the cover to be held securely at multiple angular positions including partially open states. This enables users to access food by opening the cover to controlled angles rather than fully opening it, thereby maintaining ease of access while preventing hot air from rushing out completely and causing burns

Inventive Principle:

Principle #15Dynamics

3Loss of time

If the ceramic cover is opened in one go to access food, then the time required is reduced, but the safety deteriorates as users cannot control the release of hot air

Engineering Contradiction:

Improvetime to access foodVSAvoiduncontrolled hot air release

Core Design Contradiction:

Loss of timeVSObject-affected harmful factors

Solution Approach 1:

The supporting member with multiple limiting grooves enables dynamic control over the cover opening process. Users can quickly move the cover to different angular positions by engaging different grooves, providing both speed and control. The position-limiting members ensure the cover settles securely at predetermined angles, allowing rapid access to food while preventing uncontrolled hot air release through gradual, staged opening

Inventive Principle:

Principle #15Dynamics

4Device complexity

If a simple pivot shaft connection is used to join the cover, then the device complexity is reduced, but the functionality deteriorates as the cover cannot be secured at multiple positions

Engineering Contradiction:

Improvesimplicity of connection mechanismVSAvoidability to secure at multiple positions

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The supporting member incorporates multiple limiting grooves arranged at different angular positions along its length, creating a multi-position securing system. The position-limiting members on the cover engage with these grooves to hold the cover at various angles. This provides versatile positioning capability while maintaining relatively simple construction through the use of grooves rather than complex mechanical components

Inventive Principle:

Principle #15Dynamics

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

Enables effortless opening and closing of the ceramic cover, secure angular positioning, and protection from hot air in cold weather, making the roaster safer and more user-friendly.

Implementation Method 1

an extensible and retractable bar having a first joining portion and a second joining portion, wherein the first joining portion is movably joined to the first joining end, and the second joining portion is movably joined to the second joining end

Methodology Applied

Scientific EffectElasticity: Elasticity

Data Source

PatentUS11262081B2Roaster structure with cover supporting member for achieving secure angular positions

Publication Date: 2022.03.01 FENG FU DU

AI summary

A roaster structure with a cover supporting member for achieving secure angular positions includes a roaster body and a ceramic cover in addition to the cover supporting member for achieving secure angular positions. The cover supporting member for achieving secure angular positions includes: a lower supporting member fixedly provided on one side of the roaster body and having a first joining end and at least one limiting groove; an upper supporting member pivotally joined to the lower supporting member and having a second joining end; at least one position-limiting member fixed on the upper supporting member and slidably inserted into the at least one limiting groove; and an extensible and retractable bar joined between the two joining ends. The ceramic cover can be lifted open and closed with respect to the roaster body and secured at any angular position via the cover supporting member for achieving secure angular positions.