发明名称 Headphone with cord reel
摘要 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.
申请公布号 US7614578(B2) 申请公布日期 2009.11.10
申请号 US20050578671 申请日期 2005.04.14
申请人 SONY CORPORATION 发明人 ITO TOMOHIRO
分类号 B65H75/48;H04R1/10 主分类号 B65H75/48
代理机构 代理人
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