Headphone Switchable Restoring Mechanism for DJ Use
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Solution Overview
Problem
Existing headphones with rotatable speakers face issues where the biasing force is weakened when the housings are stored in a case after being rotated 90 degrees, leading to automatic return to the normal use state, which is undesirable for specific users like DJs who prefer to keep the housings rotated.
Innovation Solution
A headphone design that includes a switchable restoring portion, allowing the sound emitters to be automatically restored to the normal use state with a biasing member or kept rotated by disabling the restoring force, enabling users to switch between these modes as needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a biasing member is used to automatically restore the housings to the normal use state, then the headphone can be stably worn and prevent unexpected detachment, but the biasing force is weakened when the housings are stored in a case after being rotated, and the housings automatically return to the normal use state even when users hope to keep them rotated
Solution Approach 1:
The patent applies the dynamics principle by making the restoring force adjustable rather than fixed. The switcher mechanism allows users to dynamically change the state of the biasing member between enabled and disabled, transforming a static system into a dynamic one that can adapt to different usage scenarios. This resolves the contradiction by allowing the headphone to provide stable wearing when needed while also permitting users to maintain rotated positions when required for specific applications like DJ use.
2Volume of moving object
If the housings are kept rotated by 90 degrees from the normal use state, then storage space is optimized with sound-emitting surfaces facing rearward, but the biasing force is continuously resisted and weakened
Solution Approach 1:
The switcher mechanism enables users to dynamically disable the restoring force when storing the headphone in a compact configuration with housings rotated 90 degrees. This allows the system to transition from a state with active biasing force to a state without restoring force, enabling optimized storage space while preventing continuous resistance that would weaken the biasing member over time.
3Ease of operation
If the restoring force is always active, then the sound emitters are automatically restored to the reference position, but specific users like DJs cannot maintain the housings in the desired rotated orientation
Solution Approach 1:
The switcher mechanism transforms the automatic restoration function from a fixed, always-active state to a dynamic, user-controllable feature. Users can enable automatic restoration during normal listening for ease of operation, and disable it when specific usage patterns like DJ applications require maintaining rotated housing orientations. This dynamic control resolves the contradiction between automatic restoration and user-specific adaptability.
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 solution enhances user-friendliness by allowing specific users to maintain the sound emitters in the desired orientation, preventing unexpected detachment and ensuring stable wear, while also enabling easy storage with the sound-emitting surfaces facing rearward.
Implementation Method 1
the housings and the hangers may be configured to be automatically restored to the normal use state with a use of a biasing member (e.g. a spring) after being rotated
Implementation Method 2
a biasing force applied by the biasing member acts to hold a part of a human body (e.g. a head) with the housings after the headphone is worn
Data Source
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AI summary
A headphone (1) includes: a headband (2); a sound emitter (3) having a sound-emitting unit therein; and a connector (4) connecting the sound emitter (3) to the headband (2). The connector (4) includes: a support (5) for supporting the sound emitter (3) so that the sound emitter (3) is rotatable in a predetermined rotation range including a reference position; a restoring portion for applying a restoring force on the sound emitter (3) for urging the sound emitter (3) to return to the reference position; and a switcher (7) for switching a state in which the restoring force acts on the sound emitter (3) and a state in which the restoring force does not act on the sound emitter (3).