Slide-Hammer Hubcap Removal for Damage-Free Wheel Service
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Solution Overview
Problem
Current devices for removing hubcaps, especially those for dual rear-wheel vehicles, often damage the wheel and hubcap due to the application of torque or leverage, and may cause user injury, while also being inefficient in reaching hubcap slots.
Innovation Solution
A device comprising a shaft with a bent hook and a slide hammer that applies force perpendicular to the hubcap, eliminating the need for torque or leverage against other wheel components, and includes a rubber-coated hook and an elastomeric grip for secure attachment and detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If torque or leverage is applied to the inside or other part of the wheel to remove the hubcap, then the hubcap can be removed, but the wheel and/or hubcap may be damaged
Solution Approach 1:
The invention extracts the harmful action of applying torque to the wheel by removing the hubcap entirely from the torque application process. Instead, the tool engages only the hubcap slots and applies force directly to the hubcap, separating the hubcap removal function from the wheel structure.
Solution Approach 2:
The hubcap slots serve as an intermediary engagement point between the removal tool and the hubcap. The tool's hooked end engages these slots to transmit pulling force directly to the hubcap, eliminating the need to apply torque to the wheel itself.
2Productivity
If torque or leverage force is applied to remove the hubcap, then the hubcap can be removed, but user injury may occur when the force suddenly releases
Solution Approach 1:
The elastomeric base with a diameter greater than the receiving portion provides a cushioning interface between the tool and the user's hand. This elastomeric material absorbs and distributes the sudden release force when the hubcap is removed, preventing injury to the user's hand while maintaining effective force application.
3Device complexity
If the tool is made too short and/or too wide to reach the hubcap slots, then the tool structure is simpler, but scratching occurs when attempting to insert the tool in the hubcap slot
Solution Approach 1:
The tool incorporates a localized engagement feature (the hooked end with specific dimensions) that is precisely adapted to fit into the hubcap slots. The hooked end has a width of 0.4-0.6 inches and an inner radius of 0.1-0.3 inches, creating a local geometry that matches the slot dimensions and prevents scratching while maintaining overall tool simplicity.
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 device minimizes damage to the wheel and hubcap, reduces user injury, and efficiently removes and attaches hubcaps by applying force directly to the hubcap without damaging other components.
Implementation Method 1
A first force acting on the slide hammer along a first axis perpendicular to the hubcap in a first direction away from the wheel may cause the hook to apply a second force to the hubcap along the first axis in the first direction
Implementation Method 2
The hook may include a rubber coating
Implementation Method 3
the grip may include a receiving portion configured to receive the second end of the shaft and an elastomeric base having a diameter greater than a diameter of the receiving portion of the grip
Data Source
AI summary
A device configured to remove a hubcap from a wheel of a vehicle without using torque or leverage applied against a component that is not the hubcap is disclosed. The device is configured to remove the hubcap by applying a force to the hubcap along a first axis that is perpendicular to the hubcap. The device comprises a shaft and a slide hammer. The shaft includes a first end and a second end. The first end includes a hook having a degree of bend greater than 90 degrees. The slide hammer is coupled to the shaft between the first end and the second end. A first force acting on the slide hammer along a first axis perpendicular to the hubcap in a first direction away from the wheel causes the hook to apply a second force to the hubcap along the first axis in the first direction.