Pot gripper and cooking system comprising the pot gripper and a pot

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Solution Overview

Problem

Conventional pot grippers are cumbersome to attach and detach from cookware without a handle, leading to increased risk of dropping the cookware, especially when the support portion is hidden or not firmly attached, and pose safety hazards due to accidental separation and heat transfer.

Innovation Solution

A pot gripper with a support slot matching the pot's contour, locking mechanism, and spring-loaded design allows secure, random attachment and easy detachment, reducing accidental separation and heat transfer risks, featuring a torsion spring for effortless opening and insulation for user safety.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional pot grippers are used without a locking mechanism, then the device complexity is reduced, but the reliability of attachment is worsened leading to accidental separation

Engineering Contradiction:
Improveattachment reliabilityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The locking mechanism automatically engages when the gripper closes on the pot, requiring no manual intervention. The spring-loaded catch self-activates upon closure, and the cam-shaped feature automatically disengages the catch when opened, making the system self-serving and reliable without adding complex manual operations

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The invention replaces complex multi-component locking systems with a simple cam-shaped feature that leverages the natural opening motion of the gripper to disengage the catch. This mechanical substitution uses the existing motion to drive the unlocking action, avoiding the need for separate unlocking mechanisms or additional actuators

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If the pot gripper is designed to attach to hidden support portions, then the adaptability is improved, but the ease of operation is worsened due to difficulty in attachment

Engineering Contradiction:
Improveattachment position adaptabilityVSAvoidattachment ease
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The support slots are pre-formed with contour-matching geometry that guides the gripper jaws onto the support portion. The cam-shaped feature is pre-configured to engage the catch during closure, so that even when attaching to hidden portions, the geometry itself performs the alignment and engagement actions that would otherwise require manual manipulation

Inventive Principle:
Principle #10Preliminary action

3Reliability

If the gripper uses a secure locking mechanism, then the reliability is improved, but the ease of operation is worsened due to difficulty in detachment

Engineering Contradiction:
Improveattachment securityVSAvoiddetachment ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The locking mechanism transitions from a static locked state to a dynamic unlocking state through the cam-shaped feature. When the gripper is opened, the cam geometry automatically converts the opening motion into catch disengagement, providing easy detachment without requiring manual manipulation or overcoming persistent mechanical locking forces

Inventive Principle:
Principle #15Dynamics

4Object-affected harmful factors

If the pot gripper lacks insulation, then the device complexity is reduced, but the object-generated harmful factors are worsened due to heat transfer to the user

Engineering Contradiction:
Improveheat transfer to userVSAvoiddevice complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The insulation element acts as an intermediary thermal barrier between the hot pot and the user's hand on the handle. This simple intermediate layer blocks heat transfer without requiring complex active cooling or heating systems, providing thermal protection through a passive material barrier

Inventive Principle:
Principle #24Intermediary (Mediator)

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 pot gripper provides a secure, heat-insulated, and easy-to-use solution for handling hot pots, reducing the risk of dropping and ensuring safe attachment and detachment, enhancing user safety and convenience in outdoor cooking.

Implementation Method 1

the spring member, preferably a torsion spring, biases the first lever and/or the second lever into the open position

Methodology Applied
Scientific EffectTorsion spring: Torsion Spring

Implementation Method 2

the second locking means further comprises a biasing means, wherein the catch is manually moveable against a biasing force of the biasing means

Methodology Applied
Scientific EffectBiasing force: Spring

Implementation Method 3

the first jaw and the second jaw comprising insulation means for heat insulation of the first lever and the second lever

Methodology Applied
Scientific EffectHeat insulation: Thermal Insulation

Data Source

PatentEP3454703B1Pot gripper and cooking system comprising the pot gripper and a pot
Publication Date: 2023.07.26 PRIMUS AB
  • EP3454703B1 patent drawingFigure 1
  • EP3454703B1 patent drawingFigure 2~3
  • EP3454703B1 patent drawingFigure 4~5

AI summary

The present invention relates to a pot gripper (1) comprising a first lever (2) and a second lever (3) being joined at a fulcrum (4) The first lever has (2) a first jaw (5) extending from the fulcrum (4) and the second lever (3) has a second jaw (6) extending from the fulcrum (4). The first jaw (5) and the second jaw (6) define a clamping area for a pot when the first lever (2) and second lever (3) are rotated from an open position (OP) into a closed position (CP). The present invention is characterized in that the first jaw (5) has at least one support slot (7), the support slot (7) being shaped to fit to the contour of a gripping area of the pot to be held in the clamping area. The present invention is further characterized in that the first lever (2) has a first locking means (8) and the second lever (3) has a second locking means (9), and the first locking means (8) engages with the second locking means (9) in the closed position (CP), so that the first lever (2) and the second lever (3) are locked in the closed position (CP).