Actuation Device for Lockable Guide Roller Units
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Solution Overview
Problem
Existing actuating devices for two lockable steering roller units on mobile transport vehicles are complex in design and assembly, requiring multiple components and specific adaptations for different transport vehicle structures, making them difficult to use and install efficiently, especially in industrial settings where simultaneous blocking of castor assemblies is necessary for safety.
Innovation Solution
The actuating device relocates the coupling plane of the connecting rod and lever between the guide axis and axis of rotation, allowing for simpler production and assembly, with adjustable attachment points and a foot pedal design that compensates for varying distances and reduces operational forces, and includes a buffer to prevent rattling noises.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the coupling plane of the connecting rod and connecting lever is positioned in the immediate area of the platform frame, then the actuating device can be integrated into the vehicle structure, but the structural design becomes complex and requires specially adapted components
Solution Approach 1:
The coupling plane is extracted from the complex platform frame area and relocated to a simpler position between the guide axis and axis of rotation. This separation removes the actuating device from the problematic immediate frame area, reducing structural complexity while maintaining adaptability through the standardized mounting approach
Solution Approach 2:
The coupling plane is repositioned in the spatial arrangement between two existing axes (guide axis and rotation axis), utilizing the three-dimensional space available in the castor assembly structure. This dimensional repositioning avoids the need for complex frame integrations while preserving adaptability
2Reliability
If multiple components are used to couple the connecting rod to the connecting levers, then the connection can be secure, but the production and assembly processes become complex
Solution Approach 1:
The coupling between the connecting rod and connecting lever is merged into a single integrated plane of attachment. By consolidating the coupling function into one standardized interface located between the guide axis and rotation axis, the design reduces the number of separate components and connection points, thereby simplifying both production and assembly while maintaining secure mechanical connection
Solution Approach 2:
The coupling plane design serves multiple functions simultaneously: it provides the attachment point for the connecting rod, defines the actuation geometry, and standardizes the interface across different castor assemblies. This multi-functionality reduces the need for additional specialized components
3Stability of the object's composition
If the attachment point between connecting rod and connecting lever is fixed, then the assembly is structurally stable, but it cannot accommodate varying distances between castor assemblies on different transport vehicles
Solution Approach 1:
The attachment point is transformed from a fixed position to an adjustable position along the connecting rod's longitudinal axis. This dynamic capability allows the attachment point to be relocated to accommodate different distances between castor assemblies on various transport vehicles, while the overall assembly remains stable during operation
Solution Approach 2:
The position parameter of the attachment point along the connecting rod is made variable. By allowing adjustment of this parameter, the actuating device can be adapted to different vehicle configurations with varying castor assembly distances, while maintaining structural stability through proper mechanical engagement
Data Source
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AI summary
The device has operation sliders (2) guided in an assembly board (1) of swivel roller components and supported on a guide shaft (7) that is articulated with connection levers (3). The connection levers are rotatable on a rotational axle (13) that is fixed at the assembly board. The connection levers are coupled with each other by a tie bar (4). A coupling plane (EK) of the tie bar and the connection levers is arranged between a position plane (E7) of the guide shaft and a position plane (E13) of the rotational axle. An oblong recess (6) is formed at the tie bar.