Dumpster Pads Distribute Weight to Protect Pavement
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Solution Overview
Problem
Roll-off and front load dumpsters often damage paved surfaces due to their weight and the concentrated force exerted by cylindrical wheels and metal rails, with existing solutions like wood sheets being impractical for transportation and installation.
Innovation Solution
The use of pads made from soft, tough materials like recycled rubber or plastic that securely engage the wheels, rails, or box tubes of dumpsters, expanding the surface area contact and preventing direct contact with the pavement, thereby reducing pressure and risk of damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If cylindrical wheels and metal rails are used to support dumpsters, then the dumpster structure is simple and durable, but the surface area contact with pavement is small causing surface damage
Solution Approach 1:
The patent introduces pads as intermediary elements between the dumpster support structures (wheels, rails, box tubes) and the paved surface. These pads are made of soft, tough material that distributes the concentrated load over a larger area, preventing pavement damage while maintaining the structural integrity and simplicity of the original dumpster design.
Solution Approach 2:
The pads are constructed from composite or composite-like materials combining softness for surface protection with toughness for load-bearing capacity. This material composition allows the pads to expand the contact surface area without compromising the dumpster's structural strength or durability.
2Object-affected harmful factors
If wood sheets or blocks are used to prevent surface damage, then pavement protection is improved, but transportation and installation become impractical
Solution Approach 1:
The pads are designed as flexible, thin protective elements that can be easily transported and installed. Unlike rigid wood sheets or blocks, these flexible pads can be rolled or folded for compact storage in the truck cab and quickly deployed by the driver during dumpster placement, making them practical for everyday operation.
3Productivity
If the dumpster rests directly on paved surface, then placement is simple and quick, but surface damage and rust occur
Solution Approach 1:
The pads are pre-installed on the dumpster support structures before the dumpster is placed on the paved surface. This preliminary action ensures that the protective barrier is already in place when the dumpster contacts the ground, eliminating the need for separate installation steps and maintaining quick placement while preventing surface damage and rust from the outset.
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 pads effectively reduce the likelihood of surface damage by distributing the weight of the dumpsters over a larger area, preventing rust, and facilitating controlled placement and removal without damaging the pavement.
Implementation Method 1
The pads effectively reduce the likelihood of surface damage by distributing the weight of the dumpsters over a larger area, reducing pressure
Implementation Method 2
The pads are made from soft, tough materials like recycled rubber or plastic that securely engage the wheels, rails, or box tubes of dumpsters
Data Source
AI summary
The disclosed pads are engaged with dumpster supports to spread the weight of the dumpster over a large surface area and provide a relatively soft ground contact interface to prevent damage to paved surfaces on which the dumpster may be placed. The pads define a cavity complementary to the dumpster support and may be affixed to the support by straps or fasteners. The pads can be constructed of flexible material and distorted to open the cavity to receive the support, then relaxed to grip the support. The pads have a ground contact surface greater than a contact surface of the dumpster support and may include grooves in the ground contact surface.