Winding – tensioning – or guiding – Reeling device – With spring motor
Reexamination Certificate
2005-04-14
2009-11-10
Nguyen, John Q. (Department: 3654)
Winding, tensioning, or guiding
Reeling device
With spring motor
Reexamination Certificate
active
07614578
ABSTRACT:
A headphone with a cord take-up device is provided, which is put into practice relatively easily and which prevents a harsh clicking sound from arising when an input cord is pulled out of a headphone housing.The headphone with a cord take-up device includes: an input cord; take-up means provided in a housing and forced to wind and retract the input cord into the housing; ratchet means interacting with the take-up means, including a ratchet wheel and an engaging pawl provided at one end of a turning arm and forced toward the side of the ratchet wheel, preventing the input cord from being wound and retracted by the take-up means and allowing the input cord to be pulled out of the housing; and a buffer material provided between the turning arm and the housing; wherein movement of the engaging pawl at one end of the turning arm is restricted by the buffer material when the input cord is pulled out of the housing.
REFERENCES:
patent: 3193049 (1965-07-01), Wollek
patent: 5106134 (1992-04-01), Thau
patent: 2006/0239491 (2006-10-01), Ito
patent: 2283782 (1995-05-01), None
patent: 57 91389 (1982-06-01), None
patent: 59 106254 (1984-07-01), None
patent: 60 145782 (1985-09-01), None
patent: 63 134075 (1988-09-01), None
patent: 3 127739 (1991-12-01), None
patent: 2000 253477 (2000-09-01), None
Translation of JP 2000-253477.
U.S. Appl. No. 11/578,671, filed Oct. 17, 2006, Ito.
Dondero William E
Nguyen John Q.
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Sony Corporation
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