Pizza Transfer Tool with Pivot Arms
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Solution Overview
Problem
Pizzas baked in commercial ovens are often difficult to automately lift and transport due to the mechanical obstruction caused by the circular retainer walls of their pans, which hinder the use of conventional spatulas.
Innovation Solution
A pizza transfer tool featuring a vertically oriented shaft with sliding or telescoping components, pivot arms, and spatula heads that can engage and lift pizzas from their pans by moving the spatula blades beneath the pan's edge, utilizing a system of pivot arms and linking members to rotate and extend the spatula heads for secure lifting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional spatula is used to lift and transport a pizza, then the lifting motion can be simple and direct, but the presence of a pizza pan's peripheral retaining wall creates a mechanical obstruction that prevents effective engagement and lifting
Solution Approach 1:
The pizza transfer tool is divided into multiple independent pivot arms (typically 3-6 arms) that are circumferentially spaced around a vertical shaft. Each arm can independently pivot and position its spatula to engage the pizza, allowing the system to work around the pan's peripheral wall rather than being blocked by it. This segmentation enables effective engagement despite the obstructing pan wall.
Solution Approach 2:
The tool transitions from a single-plane spatula approach to a three-dimensional circumferential array of pivot arms that can move radially inward and upward. The arms pivot about vertical axes and can extend radially to engage the pizza from multiple positions around the pan's perimeter, effectively working in multiple dimensions to overcome the two-dimensional obstruction of the pan wall.
2Object-affected harmful factors
If a circumferential array of pivot arms and spatulas is used to engage and lift pizza from a peripherally walled pan, then the mechanical obstruction is overcome, but the device structure becomes more complex
Solution Approach 1:
Multiple pivot arms are merged into a single integrated structure that rotates about a common vertical shaft. The arms share common mounting mechanisms, actuation systems, and support structures, allowing the system to achieve circumferential coverage without proportionally increasing overall complexity. The spatulas are also merged into the arm structures rather than being separate components.
Solution Approach 2:
The vertical shaft serves multiple functions: it supports the circumferential array of pivot arms, provides rotational movement for the arms, acts as a guide for upward motion, and serves as the central mounting structure for all components. This multi-functionality reduces the need for separate support structures and simplifies the overall device design.
Data Source
AI summary
A pizza transfer tool incorporating a vertical shaft; an upper member mounted to the vertical shaft for upward and downward motions; a lower member mounted to the vertical shaft for upward and downward motions; a circumferential array of upper pivot arms having proximal ends pivotally mounted to the upper member; a circumferential array of lower pivot arms having proximal ends pivotally mounted to the lower member; a circumferential array of linking members having inner ends and outer ends, wherein each outer end is pivotally mounted to a distal end of one of the upper pivot arms, and wherein each inner end is pivotally mounted to a distal end of one of the lower pivot arms; and a circumferential array of spatulas attached to the linking member's inner ends.