发明授权
- 专利标题: Headphones
- 专利标题(中): 耳机
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申请号: US12243758申请日: 2008-10-01
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公开(公告)号: US08325962B2公开(公告)日: 2012-12-04
- 发明人: Hiroyuki Ishida , Naotaka Tsunoda
- 申请人: Hiroyuki Ishida , Naotaka Tsunoda
- 申请人地址: JP Tokyo
- 专利权人: Sony Corporation
- 当前专利权人: Sony Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.
- 优先权: JPP2007-274000 20071022
- 主分类号: H04R25/00
- IPC分类号: H04R25/00
摘要:
There is provided headphones that include a pair of left and right earcups, an audio signal processing unit contained in the earcups, a headband connecting the left and right earcups respectively through a hanger, and a cord to supply a signal to the audio signal processing unit. In the headphones, a connection portion between the hanger and the headband is configured as an extension and contraction unit having a multistage structure including a small-diameter hollow member able to be taken in and out of a large-diameter hollow member, a part of the cord contained in the extension and contraction unit is spirally wound so as to be extended and contracted, nodes are placed respectively between the headband and the extension and contraction unit and between the hanger and the extension and contraction unit, and the respective nodes have a through-hole allowing penetration of the cord.
公开/授权文献
- US20090103762A1 HEADPHONES 公开/授权日:2009-04-23