Rotatable Broadhead Blade Impact Energy Transfer
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Solution Overview
Problem
Current broadhead blade designs in hunting devices are prone to breaking due to intense impact energy, leading to frequent replacements and increased costs, as the rigid design fails to absorb and distribute energy effectively.
Innovation Solution
A broadhead blade energy transfer apparatus with a rotatable blade and pressure device that moves from an extended position to a compressed position upon impact, utilizing a dull, C-shaped tip to absorb energy and transfer it to the support structure, preventing over-compression and reducing blade breakage, while maintaining structural integrity and accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a rigid blade design is used to maintain structural integrity and cutting effectiveness, then the blade can deliver intense impact energy, but the blade is prone to breaking due to the intense impact energy load
Solution Approach 1:
The patent applies the dynamics principle by making the blade movable rather than fixed. The blade is allowed to rotate between an extended cutting position and a compressed safe position. This dynamic movement enables the blade to absorb impact energy through controlled deformation and rotation, preventing catastrophic failure while maintaining cutting effectiveness when needed.
Solution Approach 2:
The patent changes the physical state and position parameters of the blade. By transitioning the blade from a static extended position to a dynamic system that can rotate to a compressed position, the blade's ability to withstand impact energy is enhanced. The pressure device adjusts the blade's position parameter, allowing it to yield under impact and return to its cutting position.
2Reliability
If the blade is made more resilient to absorb impact energy, then blade breakage is reduced, but the cutting effectiveness and structural integrity may be compromised
Solution Approach 1:
The blade maintains its rigid structural integrity through proper material selection and geometry, while the dynamic rotation mechanism provides the resilience needed to absorb impact energy. The blade itself remains structurally sound, but its position changes dynamically to prevent breakage.
Solution Approach 2:
The pressure device acts as an intermediary between the blade and the impact force. It controls the blade's position and yields under impact energy, mediating the force transmission to protect the blade from breaking while maintaining the blade's structural integrity.
3Ease of manufacture
If a fixed rigid blade design is used, then manufacturing is simple and cost-effective, but the blade fails under impact energy requiring frequent replacement
Solution Approach 1:
The addition of rotational capability and pressure device control transforms a simple fixed blade into a dynamic system. While this increases manufacturing complexity slightly, it dramatically increases blade reuse frequency by preventing breakage, thus improving overall productivity and reducing replacement costs.
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 solution significantly reduces blade breakage and extends the life of the broadhead blades by absorbing and redirecting impact energy, ensuring durability and reusability without compromising speed or accuracy.
Implementation Method 1
A pressure device is connected in the support structure where the pressure device is configured to pressure the connection point of the blade such that the blade is pressured toward the first end of the support structure and to the first position and to yield to force applied to the blade and enable the blade to move to the second position
Data Source
AI summary
A broadhead blade impact energy transfer apparatus and method consisting of a support structure with a first end and a second end. A blade is rotatably attached with the support structure such that the blade is movable from a first position to a second position where the blade has a leading cutting edge and a trailing edge and a connection point and an extended tip and where the connection point is connected with the support structure. A pressure device is connected in the support structure where the pressure device is configured to pressure the connection point of the blade such that the blade is pressured toward the first end of the support structure and to the first position and to yield to force applied to the blade and enable the blade to move to the second position.