Kickboxing Apparatus Sensor Alignment via Extraction
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Solution Overview
Problem
Existing recreational punching bags with integrated sensors face issues of misalignment and reduced sensitivity due to repeated use, leading to inaccurate strike detection.
Innovation Solution
The kickboxing apparatus positions force detecting sensors directly behind printed target areas within a sensor housing, securing them close to the body to prevent misalignment and enhance detection accuracy, using fewer parts to reduce manufacturing defects and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the inner shell is connected to the outer shell at the edges, then the structure is assembled, but the sensor becomes misaligned with the target area due to repeated use
Solution Approach 1:
The sensor is extracted from the inner shell structure and repositioned to be directly attached to the outer shell behind the target area. This eliminates the misalignment problem caused by the inner shell disconnecting from the outer shell over time, while still allowing for straightforward assembly.
Solution Approach 2:
The sensor is pre-positioned and secured to the outer shell during manufacturing, ensuring it remains aligned with the target area throughout the product's lifetime. This preliminary positioning prevents future misalignment issues.
2Strength
If the inner shell is used to position the sensor, then the sensor is protected, but the air gap widens and reduces sensor sensitivity
Solution Approach 1:
The sensor is removed from the inner shell enclosure and repositioned directly against the outer shell. This eliminates the air gap that reduces sensitivity while the outer shell itself provides the protective function.
Solution Approach 2:
The sensor positioning function is merged with the outer shell structure itself, eliminating the need for a separate inner shell to provide both protection and positioning. The outer shell directly serves as the sensor mounting surface.
3Reliability
If multiple electrical layers are used in the inner shell, then the circuit is completed, but the structure becomes complex and prone to misalignment
Solution Approach 1:
The sensor assembly with its electrical components is extracted from the complex multi-layer inner shell structure and repositioned as a separate unit attached to the outer shell. This simplifies the overall structure while maintaining circuit reliability.
Solution Approach 2:
The sensor system is segmented from the inner shell and positioned independently on the outer shell. This allows the electrical components to be organized in a simpler, more reliable configuration without being constrained by the inner shell's complex multi-layer structure.
Data Source
AI summary
A force sensing kickboxing apparatus is disclosed. An example apparatus includes a body including an externally facing first side and an internally facing second side and a base connected to the body configured to enable the body to be rotated with respect to the base. The example apparatus also includes an electronic device connected to the base and configured to provide information associated with the body. The example apparatus further includes a sensor housing attached to a portion of the second side of the body forming a pocket between the sensor housing and the portion of the internally facing second side and a sensor positioned within the pocket and communicatively coupled to the electronic device. The sensor is configured to detect an object contacting a portion of the first side of the body in proximity to the sensor.