Push-Push Recessed Handle for Household Oven Door Safety
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Solution Overview
Problem
The large horizontal handle on traditional electric built-in household ovens protrudes from the door, causing obstructions and safety concerns for individuals standing or moving near the oven.
Innovation Solution
A recessed push-push handle with a basin-shaped vessel and a flat lid that pivots about a reference axis, featuring a snap-on locking mechanism, elastic means for keeping the lid open, and automatic locking and rotation damping for controlled operation, allowing the handle to be completely hidden when not in use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a large horizontal handle is attached to the front face of the door for manual opening and closing, then the ease of operation is improved, but the object-generated harmful factors worsen due to obstructions and safety concerns for individuals standing or moving near the oven
Solution Approach 1:
The handle function is extracted from a traditional protruding form and reimagined as a recessed push-push mechanism. The handle is completely recessed into a seat on the front face of the door, with only a flat lid visible when closed, eliminating the protruding obstruction while maintaining the opening/closing function through push actions on the lid
Solution Approach 2:
The handle transitions from a static protruding structure to a dynamic recessed mechanism. The flat lid can pivot between closed and opened positions, and the push-push mechanism allows the handle to be actuated in both directions (open and close) through pushing motions, creating a more adaptable and space-efficient design
2Object-generated harmful factors
If a recessed push-push handle is used to eliminate obstructions, then the object-generated harmful factors are reduced, but the device complexity increases due to the basin-shaped vessel, pivot mechanism, and locking system
Solution Approach 1:
The handle mechanism is nested within a basin-shaped vessel that is completely recessed into a seat on the door. The flat lid nests within the vessel when closed, and the pivot mechanism and locking system are integrated within the vessel structure, creating a compact nested arrangement that reduces external complexity
Solution Approach 2:
Multiple functions are merged into a single integrated mechanism: the flat lid serves as both the visible surface and the actuation point, the pivot mechanism enables both opening and closing motions, and the locking system integrates with the basin-shaped vessel structure, reducing the number of separate components
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 eliminates the obstruction caused by traditional handles, enhances user safety, and provides a more aesthetically pleasing design that integrates better with kitchen furniture, while maintaining easy operation and thermal insulation.
Implementation Method 1
elastic means, which are structured for pushing and keeping the lid in the opened position
Implementation Method 2
snap-on locking mechanism for irremovably anchoring the vessel into the seat on the outer face of the front door
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A household oven (1) comprising an outer boxlike casing (2) which is internally provided with a inner cooking cavity (2a) for housing the food products to be cooked and that communicates with the outside via an access opening realized on the front face (2b) of the casing, a front door (3) which is hinged to the front face (2b) of the casing to rotate to and from a closing position in which the front door (3) rests against the front face (2b) of the casing to close the access opening realized therein, and an internal heating assembly (4) which is structured for heating and/or maintaining the inside of the inner cooking cavity (2a) at a given cooking temperature; the household oven (1) also comprising a push-push handle (11) which is completely recessed into a seat (Ha) realized in the outer face (3a) of the front door (3), and is structured for alternatively assuming a stable withdrawn position in which the push-push handle (11) remains motionless completely housed into the front door (3) and forms part of the outer face (3a) of the front door (3), and a stable extracted position in which the push-push handle (11) motionless partly protrudes out of the outer face (3a) of the front door (3) so as to be seizable by the user.