Lockable barbecue tongs
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Solution Overview
Problem
Existing barbecue tongs lack precise control over the opening and closing mechanism, leading to uncontrolled springing open and potential pinching or bruising of the user's skin, requiring two-handed operation to actuate the locking mechanism.
Innovation Solution
Integration of a torsion spring and a connecting link within a tubular handle, combined with a slide unit and guide element, ensures the gripping arms are pressed onto a tapering connecting link, preventing uncontrolled opening and allowing one-handed operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a spring is used to support the gripping arms, then the gripping arms can be opened easily, but the gripping arms may spring open uncontrolled causing pinching or bruising of the user's skin
Solution Approach 1:
A connecting link is introduced as an intermediary element between the spring and the gripping arms. The link includes a tapering section that mediates the spring force, distributing it gradually to prevent sudden uncontrolled opening while maintaining ease of operation
Solution Approach 2:
The spring force parameters are modified by introducing a damping element that changes the force delivery characteristics. The damping element transforms the direct spring force into a controlled, gradual force application, preventing harmful sudden movements while preserving operational ease
2Ease of operation
If a locking mechanism is integrated within the tubular handle, then one-armed operation is enabled and user safety is improved, but the device complexity increases
Solution Approach 1:
The locking mechanism is merged with the tubular handle structure, integrating multiple functions into a single component. The handle serves both as the structural support and as part of the locking mechanism, reducing overall device complexity while enabling one-armed operation
Solution Approach 2:
The tubular handle is designed to perform multiple functions: structural support, spring mounting, and locking mechanism integration. This multi-functionality reduces the need for separate components, simplifying the overall device while enabling sophisticated operation modes
3Measurement precision
If the axle element is firmly connected to the slide unit with guide elements, then the gripping arms can be precisely controlled, but the manufacturing precision requirements increase
Solution Approach 1:
The guide elements are designed to guide the axle element automatically during assembly and operation. The self-aligning feature of the guide elements reduces the need for high-precision manual positioning, lowering manufacturing precision requirements while maintaining control precision
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
Prevents uncontrolled opening of the tongs, enhances stability in the closed state, allows one-armed operation, and facilitates easy hanging and use, while maintaining durability through stainless steel construction.
Implementation Method 1
a spring through which the axle element passes and which is arranged between the two gripping arms
Data Source
Figure 1(a)~2(b)
Figure 3(a)~4(b)
AI summary
The present invention relates to a pair of barbecue tongs whose gripping arms are lockable and whose locking mechanism is fully integrated within a tubular handle. This prevents injuries to the user and enables one-handed operation.