Removable Handle Assembly Using Press-Fit Subassembly Insertion
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Solution Overview
Problem
The assembly of existing removable handles for cooking vessels is complex and difficult to automate, with screwing operations leading to reliability issues over time due to potential loosening of screws.
Innovation Solution
A removable handle design featuring a sub-assembly of the structural part and lock, with a housing for insertion along the longitudinal direction, a clip for guiding the lock, and a self-locking mechanism using a metallic clip and blade, ensuring precise and stable assembly and minimizing wear over time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the structural part and lock are screwed onto the grip body, then the assembly is secure, but the assembly process becomes complex and difficult to automate, and reliability decreases over time due to screw loosening
Solution Approach 1:
The patent replaces the screw-based mechanical fastening system with a press-fit insertion system. The subassembly is inserted into the grip body through friction-based mechanical interference, eliminating screws entirely. This substitution simplifies the assembly process to a single insertion motion that is easily automated while improving long-term reliability by removing components prone to loosening.
Solution Approach 2:
The patent merges the structural part and lock into a single integrated subassembly that is manufactured as one unit or pre-assembled together. This merging reduces the number of separate components that need to be fastened to the grip body, simplifying the overall assembly process from multiple screwing operations to a single insertion operation.
2Ease of manufacture
If multiple parts are assembled into the gripping body from several directions, then all components can be integrated, but the assembly process requires reversing the gripping body and becomes more complex
Solution Approach 1:
The patent segments the handle into two main parts: a subassembly (containing the structural part and lock) and the grip body. This segmentation allows the subassembly to be manufactured and prepared separately, then inserted into the grip body in a single straightforward motion, eliminating the need to reverse the grip body or perform complex multi-directional assembly operations.
3Reliability
If screws are used to fasten components, then the connection is secure, but the screws may gradually loosen over time, reducing reliability
Solution Approach 1:
The patent replaces the screw-based mechanical fastening system with a press-fit insertion system. The subassembly is inserted into the grip body through friction-based mechanical interference, eliminating screws entirely. This substitution simplifies the assembly process to a single insertion motion that is easily automated while improving long-term reliability by removing components prone to loosening.
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
This design simplifies assembly, enhances reliability by ensuring proper lock operation, and maintains stability through metal components that wear little over time, facilitating automated assembly and reducing the risk of screw loosening.
Implementation Method 1
a self-locking mechanism using a metallic clip and blade, ensuring precise and stable assembly and minimizing wear over time
Implementation Method 2
the structural part and the lock form a subassembly, the housing comprising an insertion hole arranged in a front face of the gripping body and dimensioned to allow the assembly of the subassembly into the gripping body by insertion along the longitudinal direction
Implementation Method 3
the grasping body includes the external support organ... the removable handle includes a clip attached to the structural part to define a housing for receiving and guiding the translation of the lock
Implementation Method 4
the lock comprising a locking wall intended to be moved away from the internal support member in the open position of the lock and intended to generate a force on the free end in the closed position of the lock, under the action of a pressurizing means
Data Source
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AI summary
The invention relates to a removable handle (1) intended to cooperate with a cooking vessel (60) having a side wall which is extended upwards by a portion curved outwards having a free end (65), said removable handle (1) extending in a longitudinal direction (3) and comprising an internal support member (12) and an external support member (14) intended to come against, respectively, an internal surface (62) and an external surface (63) of the side wall, as well as an upper support member (15) intended to come against the free end (65) of the curved portion, said removable handle (1) comprising a lock (20) movable in translation between an open position and a closed position,the lock (20) comprising a locking wall (21) intended to be kept away from the internal support member (12) in the open position of the lock (20) and intended to generate a force on the free end (65) in the closed position of the lock (20), under the action of a pressure-setting means (47), said removable handle (1) comprising a gripping body (2) which extends along the longitudinal direction (3) and a structural part (10) which includes the internal support member (12) and the upper support member (15). According to the invention, the structural part (10) and the lock (20) form a subassembly and the gripping body (2) has a housing (5) for receiving the subassembly, the housing (5) comprising an insertion hole (8) arranged in a front face (4) of the gripping body (2) and dimensioned to allow the assembly of the subassembly into the gripping body (2) by insertion along the longitudinal direction (3).