Composite Baseball Bat Vibration Damping Spacer
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Solution Overview
Problem
Conventional composite baseball bats suffer from vibration transfer from the barrel to the handle, leading to potential injury and instability due to insufficient connection and lack of a buffer between the handle and barrel, causing rotation or disconnection during use.
Innovation Solution
A composite baseball bat design featuring a handle with a tapered portion, a spacer member made of soft material for shock absorption, and a barrel with matching rotation-prohibition means to prevent relative rotation and disconnection, utilizing a packing device and end cap for secure engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the barrel is connected to the handle using only glue or glue and thread fitting, then the manufacturing process is simple, but the connection tightness is insufficient causing rotation or disconnection during use
Solution Approach 1:
The connection structure is divided into multiple functional components: the tapered portion of the handle, the spacer member, the tapered portion of the barrel, and the packing device. This segmentation allows each component to perform its specific function - the tapered portions provide mechanical interference fit, the spacer member provides buffering and positioning, and the packing device provides additional securing. This resolves the contradiction by maintaining manufacturing simplicity while significantly improving connection tightness and preventing rotation or disconnection during use.
2Device complexity
If the barrel is directly connected to the handle with no buffer, then the structure is simple and permanent, but vibration from the barrel transfers directly to the handle hurting the batter
Solution Approach 1:
The spacer member is introduced as an intermediary component between the barrel and the handle. This soft material spacer absorbs and dampens vibration energy, preventing direct transfer of vibration from the barrel to the handle. The spacer member also serves as a buffer that maintains proper spacing while allowing for controlled movement. This resolves the contradiction by adding a simple buffering element that significantly reduces harmful vibration transfer without complicating the overall structure.
3Reliability
If a tapered portion and spacer member are added to prevent rotation and improve connection, then connection tightness and stability are improved, but the device complexity increases
Solution Approach 1:
The tapered portions are located specifically at the connection interface between the handle and barrel, where they are needed for mechanical interference fit and rotation prevention. The spacer member is positioned precisely at the connection point to provide buffering and positioning. This localized application of specialized features only where necessary maintains overall structural simplicity while providing enhanced connection stability and rotation prevention at the critical interface.
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 design ensures excellent connection tightness and shock absorption, preventing barrel rotation relative to the handle and disconnection, enhancing batting safety and stability.
Implementation Method 1
The spacer member is formed of a soft material having a predetermined thickness and is covered on the periphery of the tapered portion of the handle... exhibiting excellent buffer effect
Implementation Method 2
The spacer member is formed of a soft material... The present invention provides an elastic material as a buffer at the connection portion of the barrel and the handle
Implementation Method 3
a tapered portion located on the first end of the barrel body around the first opening and pressed on the spacer member against the tapered portion of the handle
Data Source
AI summary
A composite baseball bat includes a handle, which has a tapered portion formed on one end of the handle body thereof and gradually increased in diameter in direction away from the handle body, a spacer member formed of a soft material having a uniformly distributed predetermined thickness and covered on the periphery of the tapered portion of the handle, and a barrel, which is sleeved onto the handle, having a first opening ad a second opening respectively located on two distal ends thereof for the passing of the handle body of the handle and a tapered portion located on one end around the first opening and pressed on the spacer member against the tapered portion of the handle.