Universal Lorry Wheel Chock with Pivoting Booster
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional truck wedges are not universally adaptable to different truck sizes and chassis structures, leading to inefficiencies in positioning and securing trucks for transhipment, as they often fail to accommodate trucks with varying wheel sizes and mudguards, resulting in confusion and safety issues during loading and unloading.
Innovation Solution
A universal chock with a movable booster mechanism, integrated wheel detection system, and release mechanism that adjusts to fit various truck sizes, including a pivoting booster to accommodate large, medium, and small wheels, and non-removable cleats for stability, along with a housing system for secure storage and operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional fixed-size wedges are used, then large trucks can be secured, but small and medium trucks cannot be properly accommodated due to low chassis structures and mudguards
Solution Approach 1:
The wedge incorporates a movable booster element that can pivot between a retracted position and an extended position. This dynamic adjustment allows the same wedge structure to accommodate both large trucks (booster retracted) and small/medium trucks with low chassis (booster extended), resolving the contradiction between adaptability and structural simplicity
Solution Approach 2:
The wedge is divided into distinct functional segments: a base wedge portion and a movable booster portion. This segmentation allows independent adjustment of the booster element to suit different truck configurations, enabling universal application across various truck sizes without requiring multiple specialized wedge designs
2Adaptability or versatility
If multiple wedge sizes are provided for different truck types, then all trucks can be accommodated, but user confusion and selection errors occur
Solution Approach 1:
The wedge is designed as a universal multi-functional device that can secure all truck types (large, medium, and small) through a single standardized design with adjustable booster element. This eliminates the need for users to select from multiple wedge sizes, preventing confusion and selection errors while maintaining comprehensive coverage of all truck types
Solution Approach 2:
The movable booster element is designed to be automatically positioned or easily adjusted by the user based on visual cues or simple mechanical operation. The system guides the user through the adjustment process, making the wedge self-explanatory and eliminating the need for complex selection criteria or user knowledge about different truck specifications
3Reliability
If the booster is always in the high position for maximum security, then large trucks are secured, but small trucks cannot pass under the fairings
Solution Approach 1:
The booster element transitions from a static high-position design to a dynamic adjustable design, allowing it to pivot between high and low positions. This enables the same wedge to provide maximum security for large trucks (booster high) while accommodating small low-frame trucks (booster low), resolving the contradiction between reliability and adaptability
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The sprag has a lower surface supported on the ground, and a concave front surface (3) placed in abutment contact with a wheel of a truck. A rear surface (12) and two lateral surfaces rigidify and maintain an acute angle formed between the lower surface and the front surface. A mobile extension (7) is placed at the top of the sprag, and swiveled towards the front surface, so that the extension stops a large wheel of the truck in upper position and is passed under a shield of the truck in lower position. An independent claim is also included for a unit for housing a sprag and its displacement unit.