Oven Door Locking Mechanism Using Spring-Loaded Slider and Pin Catch
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Solution Overview
Problem
Existing oven door locking mechanisms are often complex, difficult to install, and costly, while lacking an aesthetic appeal, which complicates their integration into ovens for preventing accidental door opening during operation.
Innovation Solution
A simple mechanical door locking system comprising a base with bent vertical walls, a slider with a spring and handle, and a pin catching element, where the slider's hook catches the pin to prevent door opening, allowing easy installation and removal with screws, and potential manufacturing in plastic for quiet operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex locking mechanism with multiple components is used, then the door locking reliability is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The locking mechanism is divided into distinct functional segments: the base with mounting holes for secure attachment, the slider with guide for controlled movement, the spring for automatic engagement, and the handle for user operation. This segmentation allows each component to be optimized independently while maintaining overall simplicity and reliability.
Solution Approach 2:
The spring-loaded slider automatically engages with the catching element when the door closes, locking the door without requiring manual intervention. The mechanism serves itself by using the door's closing motion to trigger the locking action, eliminating the need for complex control systems or multiple actuators.
2Reliability
If a complex locking mechanism is used, then the door locking reliability is improved, but the ease of manufacture and installation deteriorates
Solution Approach 1:
The mechanism consists of separate modular components (base, slider, spring, handle) that can be manufactured independently using standard processes and then assembled together. The base includes pre-formed mounting holes for direct screw attachment, eliminating the need for complex installation procedures.
Solution Approach 2:
The locking mechanism is designed to be manufactured from inexpensive materials such as plastic or simple metals, allowing for cost-effective production and easy replacement if needed. The simple geometry of components enables efficient manufacturing without requiring precision machining or specialized processes.
3Reliability
If traditional locking mechanisms are used, then the door locking function is achieved, but the aesthetic appearance and quiet operation deteriorates
Solution Approach 1:
The mechanism can be manufactured from plastic or other quiet materials instead of traditional metal components, changing the material parameters to reduce operational noise. The plastic construction also allows for smoother surfaces and more aesthetically pleasing forms that integrate better with modern oven designs.
Solution Approach 2:
The slider moves within guides formed by thin vertical walls of the base, creating a compact low-profile structure. This allows the locking mechanism to have a sleek appearance that does not protrude or add bulk to the door assembly, maintaining clean lines and aesthetic appeal.
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 system effectively prevents door opening during oven operation with a straightforward design, ease of installation, and aesthetic appeal, while being cost-effective and quiet in operation.
Implementation Method 1
a spring (9), which can be a helical spring and is built in the base (10)... The spring (9) and the cylindrical end (13) of the first end of the slider (8) are slid over the guide (7)... spring (9), which holds the slider (8) in the most outward position, pushing the slider (8) to the side of vertical walls (11)
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
The present invention concerns a door locking system, of an oven in particular, comprising a locking mechanism fixed on the front of the appliance body, equipped with a slider ended with a holder and spring and an accompanying catching element fixed to the door of the appliance. The door-locking system is characterized in that the helical cylindrical spring 13 and the cylindrical tip 14 of the slider 15 are slid over the guide 12 in the base 10, made of a flat bar, the ends of which are twice bent at right angles so that the first bent sections form vertical walls 11, to which attached are the ends of the guide 12, and the distal sections are bent outwards and have the mounting holes 13, The middle part of the slider 15 has the shape of a flat hook. Catching element rigidly fixed to the top of the panel 4 of the door 5 is a pin 3, which in the appliance door closed position is located in the space limited by the inner edges of the hook.