Compliant constrained headband spring
AssigneeBose Corporation
InventorsEric M. Wallace, Michael J. Monahan, Derek James Butland
Life of this patent
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Abstract
A compliant constrained headband spring for audio headphones includes a headband spring element and a stiffness enhancing element coupled to the headband spring element. The compliant constrained headband spring exhibits a first stiffness in an open position and a second stiffness greater than the first stiffness when closed beyond a predetermined point.
Claims20
A compliant constrained headband spring of a headband for audio headphones, the compliant constrained headband spring comprising:
- a headband spring element;
- and
- a stiffness enhancing element coupled to the headband spring element and disposed on an inner surface of the headband spring element over at least a central region of the headband spring element and coupled to the headband spring element at approximately a middle of the central region, the compliant constrained headband spring exhibiting a first stiffness in an open position and a second stiffness greater than the first stiffness when closed beyond a predefined point at which terminal ends of the headband spring element are at a predefined distance from one another.
A compliant constrained headband spring of a headband for audio headphones, the compliant constrained headband spring comprising:
- a headband spring element;
- and
- a stiffness enhancing element coupled to the headband spring element and disposed on an inner surface of the headband spring element over at least a central region of the headband spring element, the stiffness enhancing element configured such that terminal ends of the stiffness enhancing element displace from inner surfaces of the headband spring element upon opening of the headband and form gaps between the terminal ends of the stiffness enhancing element and the inner surfaces of the headband spring element, the compliant constrained headband spring exhibiting a first stiffness in an open position and a second stiffness greater than the first stiffness when closed beyond a predefined point at which terminal ends of the headband spring element are at a predefined distance from one another.
Dependencies are inferred from the claim text.