Auxiliary-Hook Clamping Assembly for Controlled Container-Door Opening
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Solution Overview
Problem
Existing clamping devices for vehicular transport containers face difficulties in achieving easy and controlled opening and closing of doors, particularly due to the squashing of elastomer gaskets causing friction and uncontrolled opening, posing a risk of injury.
Innovation Solution
A clamping device with a hooking assembly, including a main hook and an auxiliary hook, that allows for an ajar condition to temporarily hold the clamping pin, facilitating easy closure and controlled opening by managing the elastic thrust of the gasket during the closing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a robust elastomer gasket is compressed between the door wing and the opening frame to prevent uncontrolled escape of liquids, then sealing reliability is improved, but the closing operation becomes difficult due to friction and rubbing
Solution Approach 1:
The clamping device is divided into multiple independent clamping units distributed along the door wing. Each unit independently compresses the gasket at different locations, allowing progressive sealing without requiring excessive force at a single point, thus maintaining ease of operation while achieving reliable sealing.
Solution Approach 2:
The clamping device applies preliminary compression force to the gasket before the door wing fully contacts the frame. This preliminary action gradually compresses the elastomer material, reducing friction buildup and making the closing operation smoother while ensuring reliable sealing is achieved progressively.
2Reliability
If the gasket is compressed between the door and the frame to ensure sealing, then sealing effectiveness is improved, but the door may open abruptly and uncontrollably when the clamping device is actuated
Solution Approach 1:
The clamping device applies counteracting force to the elastic thrust of the compressed gasket through its mechanical structure. The device is designed to resist the rebound force generated when the gasket compresses, preventing the door from opening abruptly while maintaining sealing effectiveness.
Solution Approach 2:
The clamping device acts as an intermediary element between the door wing and the frame. It mediates the interaction by controlling the compression of the gasket and managing the elastic forces, thereby preventing uncontrolled door movement while ensuring effective sealing.
3Reliability
If multiple clamping units are used to improve door control, then door management reliability is improved, but device complexity increases
Solution Approach 1:
Each clamping unit is designed as a universal module that performs multiple functions: clamping the door wing, compressing the gasket, and resisting elastic rebound forces. This multi-functionality allows reliable door management with standardized components, reducing overall system complexity despite using multiple units.
Solution Approach 2:
The clamping units are designed to automatically adjust and self-regulate during operation. The mechanical structure allows each unit to self-adjust to the gasket compression and door position, reducing the need for complex control mechanisms while maintaining reliable door management.
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 device enables easy and controlled operation of doors, preventing accidental opening and reducing the risk of injury by managing the elastic reaction of the gasket, ensuring safe and reliable door management.
Implementation Method 1
a robust elastomer gasket is normally attached to the door wing. When the door is closed, this gasket must necessarily be compressed between the door and a perimeter frame delimiting the outlet opening.
Implementation Method 2
The terminal step of the closing movement is further hindered by significant friction and rubbing between the gasket and the metal stop parts.
Data Source
Figure 1
Figure 2~2A
Figure 3~3A
AI summary
The clamping device (1) comprises a hooking assembly, a clamping pin (7) and a command lever mechanism (8) operable to move said hooking assembly (1) between a closed and an open condition. The hooking assembly (6) comprises a main hook (9) hinged to a first frame (4) and having a first end (9a) connected to the command lever mechanism (8) and a second end (9b) engageable with the clamping pin (7) in the closed condition. An auxiliary hook (10) hinged to the main hook (9) is movable upon action of the main hook (9) and/or an interaction with said clamping pin (7). hooking assembly. In an ajar condition of the hooking assembly (6), the auxiliary hook (10) holds the clamping pin (7) so as to keep the door (P) close to the outlet opening (3).