Bridle Adjustment Structure with Rotating Shaft and Ring Gears
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Solution Overview
Problem
Existing bridle structures for wearable devices, such as head-mounted electronic devices, lack intuitive and efficient adjustment mechanisms to accommodate varying user head sizes and shapes, making it difficult for users to securely and comfortably wear these devices.
Innovation Solution
The adjustment structure incorporates a rotating shaft with ring gears and a knob that moves along the bridle, allowing users to adjust the position and length of the bridle by rotating the shaft and engaging/disengaging the ring gears, enabling easy loosening or tightening of the device to fit different head sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a bridle structure is used to tie wearable objects to the user, then the wearable object can be securely attached, but it becomes difficult for users to adjust the bridle to fit varying head sizes and shapes
Solution Approach 1:
The bridle incorporates a rotating shaft with ring gears that can rotate about an axis, transforming the static bridle structure into a dynamic one. The shaft can rotate to adjust the bridle length, and the knob with third ring gear engages with the second ring gear to drive this rotation, enabling continuous adjustment while maintaining structural integrity.
Solution Approach 2:
The adjustment mechanism uses nested ring gears where the first ring gear is coupled to the rack, the second ring gear is on the rotating shaft, and the third ring gear is on the knob. These nested gears work together in a compact arrangement, allowing multiple functions (adjustment, locking, driving) within a confined space without excessive complexity.
2Adaptability or versatility
If the bridle structure is made adjustable to fit different head sizes, then adaptability improves, but the mechanism becomes less intuitive and harder to operate
Solution Approach 1:
The adjustment mechanism is designed so that the user's natural rotating action on the knob directly drives the rotating shaft through the engagement of the third and second ring gears. This self-driving mechanism eliminates the need for complex controls or multiple steps, making the adjustment intuitive and easy to operate while achieving adaptability for different head sizes.
3Manufacturing precision
If a rotating shaft with ring gears is used to adjust bridle position, then adjustment precision improves, but the device complexity increases
Solution Approach 1:
The rotating shaft serves multiple functions: it acts as the axis for rotation, carries the second ring gear for engagement with the knob, and couples with the first ring gear that interacts with the rack. This multi-functionality reduces the need for separate components, achieving precise position adjustment without proportionally increasing device complexity.
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
This solution allows users to intuitively adjust the bridle to fit their head size, ensuring a secure and comfortable fit by allowing the bridle to be easily extended or retracted, thereby accommodating various head contours and sizes, enhancing user experience.
Implementation Method 1
The rotating shaft has a first ring gear and a second ring gear both around an axis, wherein the first ring gear is coupled to the rack, such that the rotating shaft moves along the bridle by rotating about the axis
Implementation Method 2
The knob has a third ring gear to be engaged with or released from the second ring gear by the knob moving along the axis. When the third ring gear is engaged with the second ring gear, the knob is forced to drive the rotating shaft to rotate
Data Source
AI summary
An adjustment structure of a bridle including a bridle, rotating shaft, and a knob is provided. The bridle has a rack. The rotating shaft has a first ring gear and a second ring gear both around an axis, wherein the first ring gear is coupled to the rack, such that the rotating shall moves along the bridle by rotating about the axis itself. The knob is rotated about the axis and moved along the axis to be movably coupled to the rotating shaft. The knob has a third ring gear to be engaged with or released from the second ring gear by the knob moving along the axis. When the third ring gear is engaged with the second ring gear, the knob is forced to drive the rotating shaft to rotate about the axis.