Wearable String Shooter With Gesture-Triggered Auto Reload
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Solution Overview
Problem
Existing string shooting devices require manual reloading and are not wearable or easily actuatable, limiting their usability and convenience.
Innovation Solution
A wearable string shooting device that is actuated by hand gestures or body movements, featuring a pair of wheels with a driven wheel controlled by an actuator, allowing for propelling and retrieving a looped string without direct manual operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional string shooting device is used with manual reloading, then the device structure is simple, but the ease of operation deteriorates due to manual reloading requirements
Solution Approach 1:
The device automatically retrieves and reloads the string loop without manual intervention. The motor-driven wheel rotates to pull the string back through the housing, and the spring-loaded mechanism automatically repositions the string for the next shot, eliminating the need for manual reloading operations.
Solution Approach 2:
The patent replaces manual mechanical operations with an automated motor-driven system. The motor controls the rotation of the wheel to perform string retrieval and positioning, substituting manual hand operations with an automated electromechanical system.
2Ease of operation
If a hand-held string shooting device is used, then the device is portable, but the ease of operation deteriorates due to difficulty in actuation
Solution Approach 1:
The patent introduces a wearable mount with a sensor that acts as an intermediary between the user's body movements and the device actuation. The sensor detects specific body movements or gestures and translates them into trigger signals for the motor, enabling easy operation without direct manual actuation of the device itself.
Solution Approach 2:
The patent replaces direct manual mechanical actuation with a sensor-based detection system. Instead of requiring the user to physically press a button or lever on the device, the system uses sensors to detect body movements or gestures and automatically triggers the motor accordingly.
3Speed
If the driven wheel rotates to propel the string, then the string can be shot distance, but the device complexity increases due to the actuator and control system
Solution Approach 1:
The motor operates in periodic cycles, rotating the driven wheel in alternating directions. The controller activates the motor for a predetermined time period to propel the string outward, then deactivates it to allow the spring to retrieve the string, creating a periodic shot-retrieve cycle that simplifies control.
Solution Approach 2:
The system controls the motor by changing operational parameters such as rotation direction and duration. The controller adjusts these parameters to achieve the desired propulsion effect, eliminating the need for complex mechanical linkages by using electronic parameter control instead.
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
Enables hands-free operation and convenient string propulsion and retrieval, enhancing user interaction and performance of tricks with increased air friction and lift for the string.
Implementation Method 1
at least one wheel of the pair of wheels is a driven wheel; an actuator to activate and/or change the direction of movement of the driven wheel
Implementation Method 2
utilizes a looped string that is continuously propelled through a pair of wheels to create sufficient lift to defy gravity and generate a continuous floating loop
Data Source
AI summary
Provided herein is a string shooting device, and more particularly, a string shooting device having that is wearable and operable by hand gestures or body movement. Embodiments include a wearable device for propelling a string including: a string shooting device; a band configured to attach to a body part of a user; and a holder, where the holder is secured by the band to the user; where, in response to the body part of the user being in a first position, the string shooting device is not actuated, and where in response to the body part of the user being in a second position, the string shooting device is actuated.