Cooking Appliance Door Frame With Recessed Grip and Protected Front Pane
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Solution Overview
Problem
Existing cooking appliance doors lack variability and functionality, with pane packs typically relying on a single trough-shaped inner pane for support, leading to issues with smearing, fingerprint manifestation, and potential chipping of edges, as well as limited flexibility in design and functionality.
Innovation Solution
A door design featuring a separate functional frame between the front and further panes, incorporating a recessed grip with a delimiting web that protrudes upward, allowing for enhanced grip functionality and reduced wear on the front pane, while also serving as a spacing element and incorporating a separate fascia panel for optical and protective purposes, along with a funnel-shaped connecting member for unique lighting effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the front pane directly forms the delimitation of the recessed grip, then the door structure is simpler, but the front pane suffers from smearing, fingerprint manifestation, and potential chipping
Solution Approach 1:
The patent introduces a frame as an intermediary element between the front pane and the recessed grip. The frame includes a grip-recessed upper frame part that provides the grip function, while the front pane is positioned behind this frame element. This mediator prevents direct contact between the grip area and the front pane, eliminating smearing and fingerprint issues on the glass surface while maintaining structural integrity.
2Reliability
If a separate functional frame is introduced between the front pane and further pane, then the door becomes more robust and flexible with improved grip functionality, but the device complexity increases
Solution Approach 1:
The frame serves multiple functions simultaneously: it provides structural support between the panes, creates the recessed grip opening, positions the front pane at a distance from the grip area, and offers mounting surfaces for both panes. By making the frame multi-functional, the patent achieves improved reliability and grip functionality without proportionally increasing complexity, as one component performs several critical roles.
3Area of stationary object
If the front pane is made larger to improve visibility, then the optical appeal is enhanced, but the susceptibility to chipping and wear at the edges increases
Solution Approach 1:
The patent addresses the edge vulnerability issue by introducing a spatial dimension through the frame structure. The front pane is positioned in a plane behind the frame, creating a depth relationship where the frame's grip-recessed upper frame part extends forward. This dimensional arrangement allows the front pane to be larger for better visibility while the frame protects its edges by positioning them away from direct contact zones.
Data Source
AI summary
A door for a cooking appliance includes a front pane, a further pane arranged in spaced-apart relation to the front pane, a recessed grip embodied in an upper region of the door and configured for gripping from above, and a separate functional frame arranged in an intermediate space between the front pane and the further pane when viewed in a depth direction of the door. The functional frame includes an upper frame part having a delimiting web which protrudes upward on the upper frame part such that the recessed grip is embodied in the upper frame part.