Method for producing a handle sub-assembly for a cooking vessel
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Solution Overview
Problem
The assembly of a handle sub-assembly with a temperature sensor on a cooking vessel is challenging due to the risk of pinching conductive elements, which can lead to their damage and loss of sensor functionality.
Innovation Solution
A method involving the use of a brake device with a silicone pad and calibrated slot to tension and secure the conductive element in place, ensuring it is not pinched during assembly, combined with a support system for precise positioning and a metallic tubular casing for the sensor, allowing for reliable and durable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual assembly of the handle sub-assembly is performed without a brake device, then the assembly process is simple, but the conductive elements are at risk of being pinched and damaged
Solution Approach 1:
The brake device acts as an intermediary mechanism between the manual assembly process and the conductive elements. It provides controlled friction through the silicone pad and calibrated slot to prevent pinching while allowing necessary movement, thus protecting the conductive elements without requiring complex automated assembly systems
Solution Approach 2:
The brake device is designed to be self-regulating through its calibrated slot and silicone pad friction characteristics. The device automatically provides the appropriate level of restraint based on the geometry and material properties, eliminating the need for complex external control systems while ensuring reliable protection of the conductive elements
2Manufacturing precision
If the conductive element is tightly secured to prevent movement, then positioning accuracy is improved, but the element cannot be properly tensioned during assembly
Solution Approach 1:
The brake device transitions from a static restraint to a dynamic controlled friction system. The calibrated slot allows the conductive element to move freely during tensioning, then provides friction-based restraint when positioning is complete, enabling both easy operation and precise positioning at different stages of assembly
Solution Approach 2:
The system changes the friction parameter dynamically through the silicone pad's contact with the calibrated slot. During tensioning, friction is minimized to allow movement; during positioning, friction increases to maintain precision. This parameter change is achieved through the geometric relationship between the slot and pad rather than active control
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 method simplifies and ensures reliable assembly of the handle sub-assembly, preventing conductive element pinching and ensuring consistent sensor functionality over time, while being economical and adaptable to various cooking vessel sizes.
Implementation Method 1
The slot has a calibrated width less than the width of the conductive element, which may in particular be a diameter if the conductive element is round. Thus, the friction of the conductive element in the slot ensures that the conductive element is held in position as long as the tensile force on the conductive element does not exceed a predetermined threshold.
Data Source
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AI summary
The invention relates to a method for producing a handle sub-assembly intended to be assembled with a cap (2) to form a cooking vessel (1), said sub-assembly comprising a handle (20), a sensor (30 ), in particular a temperature sensor, provided with at least one flexible and insulated conductive element (31, 32) which is connected to a connection member (17) of a control circuit (28), said sub- assembly comprising a zone (49) for receiving the conductive element (31, 32), part of which (49b) is arranged in the handle (20). In accordance with the invention, the method successively comprises the following steps: a) Putting in place and tensioning the conductive element (31, 32) in the reception zone (49) by exerting traction on the connecting member (17) and/or on the conductive element (31, 32) after placing said conductive element (31, 32) in a brake device (60) arranged in the handle (20), the brake (60) allowing movement of the conductive element (31, 32) in the direction of traction when the traction force exceeds a predetermined threshold, b) Carrying out the positioning of the connection member (17) and/or the conductive element (31, 32) in the handle (20), the handle (20) comprising a receiving housing (72) in which a residual part of the conductive element (31, 32) is arranged forming at least one loop, the brake device (60) then preventing the displacement of the conductive element (31, 32) in the direction opposite to the direction of tra ction during the formation of the loop.