Oven Hinge Friction System for Lid Position Stability
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Solution Overview
Problem
Existing oven hinge systems fail to maintain the lid in a balanced position during opening and closing, leading to potential heat loss and instability due to unbalanced momentum and lack of effective frictional forces.
Innovation Solution
The oven hinge incorporates a friction system with primary and secondary elastic parts, vertical and horizontal friction elements, and a locking mechanism to create and maintain friction forces that balance the lid's position, ensuring it stays closed and preventing heat loss by transferring forces through a complex mechanism involving bush shafts, elastic holders, and slits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If existing hinge systems use only elastic parts to balance the lid, then the lid can be balanced, but the lid cannot stay stable at intermediate positions and may deviate from the balanced position due to lack of friction control
Solution Approach 1:
The patent introduces friction elements that change the interaction parameters between moving parts. The friction system provides a controllable resistance force that complements the elastic balancing force, allowing the lid to maintain stable positions at any angle. This is achieved by creating friction between the friction element and the friction surface, converting the purely elastic system into a friction-elastic hybrid system that can resist small disturbances and maintain position reliability.
2Stability of the object's composition
If the hinge system adds friction elements to maintain lid position, then position stability improves, but the device complexity increases due to additional components
Solution Approach 1:
The patent merges the friction function with existing hinge components. The friction element is integrated into the intermediate part or suspending part structure, and the friction surface is formed on existing components like the hinge body or intermediate part. This merging approach adds the friction function without requiring completely separate, independent friction mechanisms, thereby reducing the overall complexity increase compared to adding entirely separate friction devices.
Solution Approach 2:
The friction elements and surfaces are designed to serve multiple functions: they provide frictional resistance for position stability, guide the motion of the lid, and work in conjunction with the elastic parts to achieve both balancing and positioning. This multi-functionality reduces the need for dedicated separate components for each function, thereby limiting the increase in device complexity.
3Device complexity
If the hinge system uses a simple elastic part configuration, then the device complexity is low, but heat loss occurs because the lid cannot be securely closed and maintained in the closed position
Solution Approach 1:
The friction system changes the force interaction parameters at the closure interface. When the lid closes, the friction element presses against the friction surface, creating a frictional holding force that prevents the lid from opening due to gravity or external disturbances. This frictional force complements the elastic closing force, ensuring reliable sealing and preventing heat loss without requiring overly complex closure mechanisms.
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 friction system effectively balances the oven lid during opening and closing, preventing heat loss and maintaining the lid's position, even when deviations occur, by continuously applying pressure through the friction elements, ensuring the lid remains securely closed.
Implementation Method 1
The elastic part is always tensed in all positions of the lid. The force produced by the elastic parts is transferred to the part holding the elastic part, then to the roller shaft and from here to the roller.
Implementation Method 2
When the intermediate part comes to the closed position, the forces produced from the elastic parts by means of the cam section on top, the lid is forced to be rotated towards the closing direction.
Implementation Method 3
The purpose of the present invention is to provide an oven hinge which has a friction system, which helps the lid/door to stay in a balanced position when the door of the oven is being opened and closed by means of a friction force.
Data Source
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AI summary
This invention is related to a hinge mechanism (1) that accommodates a friction system inside it which is used in oven (F) doors (K). This friction system helps the door (K) to stay in a balanced position during the opening and the closing of the door (K) by means of the friction force.