Quick Fastening Device for Utility Vehicle Attachments
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Solution Overview
Problem
Existing quick-change devices for attachments on commercial vehicles, such as snow plows and sweepers, face challenges including weight distribution issues, interference with emergency brake assistant sensors, and the need for frequent adjustments to prevent loosening due to vibrations.
Innovation Solution
A quick-fastening device with a clutch arrangement that integrates an attachment plate with a front and back, allowing for indirect attachment to a cultivation plate. This design includes a clutch device adjustable between opening and closing positions, ensuring secure attachment and easy detachment, while also allowing for weight savings and improved sensor compatibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a mounting plate is permanently mounted on the vehicle, then the attachment is securely fixed, but the additional weight negatively impacts the front axle load
Solution Approach 1:
The mounting system is divided into a vehicle-mounted attachment device and a detachable mounting plate with attachment. The mounting plate can be removed when not in use, eliminating the need for a permanently mounted heavy plate while maintaining secure fixation when needed.
Solution Approach 2:
The mounting plate transitions from a static permanent installation to a dynamic removable component. It can be quickly attached and detached based on operational requirements, allowing the system to adapt its weight configuration while maintaining secure fixation when the attachment is needed.
2Reliability
If the mounting plate is permanently installed, then the attachment remains stable, but it interferes with emergency braking assistant sensors
Solution Approach 1:
The mounting plate is extracted from the vehicle structure and made detachable. When not in use, it can be removed entirely, eliminating interference with emergency braking assistant sensors while maintaining attachment stability when needed.
Solution Approach 2:
The mounting system becomes dynamic rather than static, allowing the mounting plate to be positioned or removed based on sensor requirements. This enables the system to alternate between providing stable attachment and not interfering with sensors.
3Productivity
If quick-action screw fasteners are used, then the attachment can be quickly changed, but the bolts loosen due to vibrations requiring frequent retightening
Solution Approach 1:
The traditional screw and bolt fastening system is replaced with a hook-and-loop fastening mechanism. This substitution eliminates the loosening problem associated with threaded fasteners under vibration while maintaining quick attachment and detachment capabilities.
Solution Approach 2:
The fastening mechanism changes from a threaded mechanical connection prone to loosening to a friction-based hook-and-loop system that maintains retention under vibration. The parameter change involves transitioning from precision-threaded fasteners to a more tolerant friction-fit system that is less sensitive to vibrational forces.
Data Source
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AI summary
The invention relates to a quick-change device for attachments on commercial vehicles, in particular for snowplows or sweepers, comprising at least a mounting plate with a front and a rear side, wherein the attachment can be arranged at least indirectly on the front side of the mounting plate and the rear side of the mounting plate can be attached to a vehicle-mounted attachment device. The mounting plate has a coupling device in the upper area of the rear side for detachable attachment to the attachment device, which is adjustable at least between an open position releasing the attachment device and a closed position engaging the attachment device by force and/or positive locking.