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公开(公告)号：EP0104996A2
公开(公告)日：1984-04-04
申请号：EP83401852.5
申请日：1983-09-23
发明人： Hart, David Gerald
IPC分类号： G11B15/22
CPC分类号： G11B15/22
摘要： A brake apparatus is provided for tape recorders, particularly of the coaxial reel type, in which a single brake pad, mounted on a brake arm, engages a pair of adjacent coaxially disposed drive wheels for coaxial tape resls. The brake arm is biased by a spring into braking engagement with the drive wheels. A solenoid is operable to withdraw the brake arm, thereby disengaging the brake, when energized. The solenoid is controlled to be energized whenever a drive motor for the tape reels is powered, and to be deenergized when the drive motor is not powered. The disclosed structure provides automatic braking for the tape reels whenever the drive motor loses power or is shut off, thus providing positive mechanical braking both in a power loss condition and in a parking condition for the tape reels.
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公开(公告)号：EP0104997A2
公开(公告)日：1984-04-04
申请号：EP83401853.3
申请日：1983-09-23
CPC分类号： G11B33/02 , G11B33/12 , G11B33/1406 , H05K7/16 , H05K7/18 , H05K7/20009
摘要： To minimize the weight of a magnetic tape recorder chassis and cabinet assembly, a wire frame chassis (18) carrying printed circuit board guides (20) and connectors (22) is mounted to one side of a sand cast bezel (24), and polyurethane wall panels (16) are secured to the wire frame. A cabinet cover and underlying tape transport assembly are hinged to the bezel to enable pivoting away from the wire frame, exposing circuit boards for servicing. The "open air flow" characteristic of the wire frame chassis (18) helps cool critical electrical components.
摘要翻译： 为了最小化磁带录音机机箱和机柜组件的重量，承载印刷电路板引导件（20）和连接器（22）的线框底架（18）安装在砂铸表圈（24）的一侧，聚氨酯 墙板（16）固定在线框上。 机柜盖和下层的带运输组件铰接到挡板上以使得能够远离线框架转动，露出用于维修的电路板。 线框架底架（18）的“露天气流”特性有助于冷却关键的电气部件。
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公开(公告)号：EP0104997B1
公开(公告)日：1988-03-30
申请号：EP83401853.3
申请日：1983-09-23
CPC分类号： G11B33/02 , G11B33/12 , G11B33/1406 , H05K7/16 , H05K7/18 , H05K7/20009
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公开(公告)号：EP0104996B1
公开(公告)日：1989-03-08
申请号：EP83401852.5
申请日：1983-09-23
发明人： Hart, David Gerald
IPC分类号： G11B15/22
CPC分类号： G11B15/22
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公开(公告)号：EP0104996A3
公开(公告)日：1985-10-23
申请号：EP83401852
申请日：1983-09-23
发明人： Hart, David Gerald
IPC分类号： G11B15/22
CPC分类号： G11B15/22
摘要： A brake apparatus is provided for tape recorders, particularly of the coaxial reel type, in which a single brake pad, mounted on a brake arm, engages a pair of adjacent coaxially disposed drive wheels for coaxial tape resls. The brake arm is biased by a spring into braking engagement with the drive wheels. A solenoid is operable to withdraw the brake arm, thereby disengaging the brake, when energized. The solenoid is controlled to be energized whenever a drive motor for the tape reels is powered, and to be deenergized when the drive motor is not powered. The disclosed structure provides automatic braking for the tape reels whenever the drive motor loses power or is shut off, thus providing positive mechanical braking both in a power loss condition and in a parking condition for the tape reels.
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公开(公告)号：EP0104997A3
公开(公告)日：1984-10-24
申请号：EP83401853
申请日：1983-09-23
CPC分类号： G11B33/02 , G11B33/12 , G11B33/1406 , H05K7/16 , H05K7/18 , H05K7/20009
摘要： To minimize the weight of a magnetic tape recorder chassis and cabinet assembly, a wire frame chassis (18) carrying printed circuit board guides (20) and connectors (22) is mounted to one side of a sand cast bezel (24), and polyurethane wall panels (16) are secured to the wire frame. A cabinet cover and underlying tape transport assembly are hinged to the bezel to enable pivoting away from the wire frame, exposing circuit boards for servicing. The "open air flow" characteristic of the wire frame chassis (18) helps cool critical electrical components.
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