Vehicle Cargo Bed Panel Locking Mechanism for Noise Reduction
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Solution Overview
Problem
Conventional panel locking devices for vehicle cargo beds allow the locking lever to swing and make noise when the gate-shaped panel is opened horizontally, as the locking handle and handle ring are not securely fixed in this position during travel.
Innovation Solution
A panel locking device with a locking lever supported by a spindle, a movable hook, a first fixed hook on the adjacent panel, and at least one second fixed hook on the gate-shaped panel, which engages with the movable hook to stabilize the locking lever and prevent swinging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the gate-shaped panel is opened into a horizontal state, then the panel can be used as an extending portion for loading cargo, but the locking handle and handle ring become swingable and may contact the tail panel to make noise
Solution Approach 1:
The locking mechanism is segmented into two distinct hook systems: a first fixed hook for engaging the movable hook when the panel is closed, and a second fixed hook for engaging the movable hook when the panel is opened. This segmentation allows each hook to serve a specific function in different panel positions, preventing the locking components from swinging and contacting the panel during travel.
Solution Approach 2:
The movable hook acts as an intermediary component that transfers the locking function between two fixed hooks depending on the panel position. When the panel is closed, the movable hook engages with the first fixed hook; when the panel is opened, it engages with the second fixed hook. This intermediary mechanism ensures continuous stabilization of the locking components regardless of panel position.
2Device complexity
If the locking handle and handle ring are allowed to swing freely, then the structure remains simple, but the locking components may contact the panel and generate noise during travel
Solution Approach 1:
The locking mechanism is divided into two fixed hook structures positioned at different locations. The first fixed hook stabilizes the locking components when the panel is closed, while the second fixed hook stabilizes them when the panel is opened. This segmentation eliminates the need for complex additional restraining mechanisms while preventing noise generation in both panel positions.
3Object-generated harmful factors
If additional components are added to prevent locking lever swinging, then noise is prevented, but the device complexity and size increase
Solution Approach 1:
The movable hook serves multiple functions: it engages with the first fixed hook to lock the panel when closed, engages with the second fixed hook to lock the panel when opened, and acts as a universal interface between the locking lever and both fixed hooks. This multi-functionality eliminates the need for separate restraining mechanisms, preventing noise while maintaining structural simplicity.
Solution Approach 2:
The locking mechanism uses dynamic engagement where the movable hook can transition between engaging with the first fixed hook and the second fixed hook based on the panel position. This dynamic adaptability allows the same components to serve different locking functions without requiring additional static restraining structures, thereby preventing noise while maintaining simplicity.
Data Source
AI summary
A panel locking device for a vehicle cargo bed is configured to retain an openable gate-shaped panel so as to be upstanding at a closed position. The panel locking device includes a locking lever rotatably supported by a lever support portion provided at a first of the openable gate-shaped panel and a cargo bed panel adjacent to the openable gate-shaped panel, a movable hook rotatably coupled to a halfway portion of the locking lever, a first fixed hook provided to a second one of the openable gate-shaped panel and the cargo bed panel and configured to engage with the movable hook when the openable gate-shaped panel is located at the closed position, and a second fixed hook provided to the first one of the panels and configured to engage with the movable hook.