Headset Binding Band Gear Assembly for Quiet Bidirectional Adjustment
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Solution Overview
Problem
Existing headsets generate high or low noise during binding band adjustment due to unidirectional or bidirectional ratchet mechanisms, affecting user experience.
Innovation Solution
A binding band assembly with a rotatable gear, racks, and a rolling member between a toggle portion and transmission member, which reduces friction and noise during adjustment by enabling smooth, bidirectional operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a ratchet mechanism is used for binding band adjustment, then the binding band can be adjusted to adapt to different head sizes, but high or low noise is generated during adjustment
Solution Approach 1:
The patent replaces the traditional ratchet mechanism with a gear-rack mechanism. The gear is rotatably mounted on the axis, and when the gear rotates, the rack moves linearly along the gear teeth, driving the binding band to expand or contract. This mechanical substitution eliminates the clicking noise inherent in ratchet mechanisms while maintaining the adjustment functionality.
Solution Approach 2:
The patent introduces a rolling member (roller) as an intermediary between the gear and the binding band. The roller converts the rotational motion of the gear into linear motion of the binding band through rolling contact, reducing friction and noise. The roller acts as a mediator that smooths the interaction between the gear mechanism and the binding band, eliminating direct sliding friction that causes noise.
2Ease of operation
If a ratchet mechanism is used for binding band adjustment, then the adjustment function is achieved, but friction is high and operation is not smooth
Solution Approach 1:
The patent replaces the sliding friction-based ratchet mechanism with a gear-rack system that uses rolling contact. The gear teeth engage with the rack in a manner that distributes force evenly, and the rolling member further reduces friction by converting sliding contact into rolling contact. This substitution significantly reduces the force required for adjustment and smooths the operation.
Solution Approach 2:
The patent makes the binding band adjustment system dynamic and reversible. The gear can rotate in both directions, allowing the binding band to be adjusted smoothly in either direction without the unidirectional constraint of a ratchet mechanism. The rolling member enables dynamic, low-friction movement throughout the adjustment range.
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 assembly achieves noise-free, bidirectional adjustment with improved user experience by reducing friction and ensuring smooth operation.
Implementation Method 1
A rolling member is provided between the toggle portion and the transmission member, and the toggle portion is configured to drive, by pushing the rolling member to roll, the transmission member to rotate
Data Source
AI summary
Provided are a binding band assembly for a headset and a headset. The binding band assembly includes: a housing in which a rotatable gear is provided; a first binding band and a second binding band each provided with a rack meshed with the gear to drive the first binding band and the second binding band to move towards or away from each other when the gear rotates; a transmission member provided in the housing and fixedly connected to the gear; and a rotation control member provided on the housing and having a toggle portion, a rolling member being provided between the toggle portion and the transmission member, and the toggle portion being configured to drive, by pushing the rolling member to roll, the transmission member to rotate.