Oven Rack Rear Rail Geometry for Larger Pan Clearance
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Solution Overview
Problem
Conventional oven racks restrict the size of objects that can be placed due to raised rear portions that prevent objects from falling off, but these extensions limit the size of items that can be accommodated and hinder easy removal.
Innovation Solution
An oven rack design featuring angled rear rails that project rearwardly and upwardly, providing additional clearance by forming an angle with the vertical axis between 0 and 45 degrees, allowing larger objects to be placed without falling off during removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If raised rear portions are added to the oven rack to prevent objects from falling off, then object retention is improved, but the size of objects that can be placed on the rack is restricted
Solution Approach 1:
The patent transitions from vertical extensions (raised rear portions) to angled rear rails that project rearwardly and upwardly at angles between 0-45 degrees from the horizontal. This angular orientation creates diagonal support surfaces that prevent objects from falling off while allowing larger objects to extend beyond the rack boundaries, effectively solving the contradiction by changing the geometric dimension of the retention structure.
2Reliability
If raised rear portions are added to prevent objects from falling off, then object retention is improved, but ease of removal of objects is hindered
Solution Approach 1:
By angling the rear rails upward from the horizontal rather than extending vertically, the patent creates a geometry where objects can be easily tilted forward for removal. The angled configuration provides clearance space between the rails that allows fingers or tools to access and lift objects, while still maintaining retention when the rack is stationary or being moved horizontally.
3Reliability
If vertical extensions are used to retain objects, then object retention is improved, but clearance for large objects is reduced
Solution Approach 1:
The angled rear rails create a three-dimensional configuration where the space between the rails forms a clearance zone that accommodates large objects. The diagonal orientation allows objects to extend rearward beyond the rack while the upward angle provides the retention function, effectively increasing the usable length and clearance space compared to vertical extensions.
Data Source
AI summary
An oven rack for an oven that providing additional clearance for an object on the oven rack. The oven rack comprises a generally rectangular shape including a front member, a rear member, and side members extending between the front and rear members. A grid structure is connected to the front, rear and side members and supports objects on the oven rack. Two rear rails are connected to the rear member to help retain objects on the oven rack. The rear rails project rearwardly and upwardly from rear member and define a free space being between the rear rails providing additional clearance for objects placed on the oven rack.