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71. 发明专利

DD230665A3 未知
公开(公告)号：DD230665A3
公开(公告)日：1985-12-04
申请号：DD24714383
申请日：1983-01-10
申请人： TESLA KP
发明人： JANDA JIRI
IPC分类号： G11B3/42 , G11B3/16 , G11B3/31 , H04R1/16 , G11B3/10
摘要： Arrangement for fastening a phonographs stylus holder to its tone arm. The arrangement has a plurality of pins affixed to the tone arm, and sleeves inserted in openings in the stylus holder. The sleeves are slipped onto the pins and have a frictional engagement therewith. The lower ends of the sleeves are provided with flanges which underlie opposite edge portions of the stylus holder. In one embodiment of the arrangement the passages through the sleeves are concentric with the external cylindrical surfaces of the sleeves, and in another embodiment the passages through the sleeves are eccentric with respect to the outer cylindrical surfaces of the sleeves whereby turning of the sleeves permits an angular adjustment of the stylus holder with respect to the tone arm. Indicium means may be provided on the sleeve to indicate the angular position of the sleeves relative to the stylus holder.

72. 发明专利

CS234766B1 EQUIPMENT FOR VERTICAL FORCE ADJUSTMENT ON STYLUS OF GRAMOPHONE PICK-UP 未知
公开(公告)号：CS234766B1
公开(公告)日：1985-04-16
申请号：CS520182
申请日：1982-07-07
申请人： HRDLICKA KAREL
发明人： HRDLICKA KAREL
IPC分类号： G11B3/16

73. 发明专利

FR2525374B3 未知
公开(公告)号：FR2525374B3
公开(公告)日：1985-02-15
申请号：FR8217414
申请日：1982-10-18
申请人： TESLA KP
IPC分类号： G11B3/42 , G11B3/16 , G11B3/31 , H04R1/16 , G11B3/10
摘要： Arrangement for fastening a phonographs stylus holder to its tone arm. The arrangement has a plurality of pins affixed to the tone arm, and sleeves inserted in openings in the stylus holder. The sleeves are slipped onto the pins and have a frictional engagement therewith. The lower ends of the sleeves are provided with flanges which underlie opposite edge portions of the stylus holder. In one embodiment of the arrangement the passages through the sleeves are concentric with the external cylindrical surfaces of the sleeves, and in another embodiment the passages through the sleeves are eccentric with respect to the outer cylindrical surfaces of the sleeves whereby turning of the sleeves permits an angular adjustment of the stylus holder with respect to the tone arm. Indicium means may be provided on the sleeve to indicate the angular position of the sleeves relative to the stylus holder.

74. 发明专利

DE2718984C2 未知
公开(公告)号：DE2718984C2
公开(公告)日：1984-02-09
申请号：DE2718984
申请日：1977-04-28
申请人： SONY CORP., TOKYO, JP
发明人： NAKAJIMA, HEITARO, TOKYO, JP , OMURA, YOSHIMOTO, MITAKA, TOKYO, JP , KAWASHIMA, ISAO, CHIBA, JP
IPC分类号： C08L23/00 , B05D3/10 , B05D7/14 , B29C55/00 , B29C65/00 , B29C65/70 , B32B15/08 , B32B15/085 , C08J5/12 , C08L7/00 , C08L21/00 , C08L23/26 , C08L51/00 , C08L51/02 , C08L101/00 , C09J5/02 , C23C22/00 , C23C22/07 , G11B3/10 , G11B3/12 , G11B3/16 , G11B3/30 , G11B3/32 , G11B3/36 , G11B3/38
摘要： A tone arm assembly for record players having a first motor for rotating a tone arm in the vertical direction, a second motor for rotating the tone arm in the horizontal direction with respect to a record disc, respectively, a detector for detecting low frequency vertical and horizontal vibrations of the tone arm during the reproduction of a record disc and feeding back an output signal of the detector to the motors so as to cancel the vibrations, whereby high fidelity reproduction of sounds can be performed. Further, the stylus pressure adjustment and elevation angle adjustment of the tone arm are also performed.

75. 发明专利

GB2043322B PICKUP ARM DEVICE 未知
公开(公告)号：GB2043322B
公开(公告)日：1983-06-15
申请号：GB8004624
申请日：1980-02-12
申请人： MATSUSHITA ELECTRIC IND CO LTD
IPC分类号： G11B3/14 , G11B3/32 , G11B3/16
摘要： A pickup arm device comprising a rotary bearing having a mounting bed rotatable about both the vertical and horizontal axes, and an arm assembly consisting of an arm, a cartridge mounting head shell at one end thereof, a rider weight at the other end thereof and a mount or saddle which is formed between the ends thereof and adapted to be slidably mounted on the mounting bed of the rotary bearing, whereby the arm assembly including a cartridge may be easily replaced.

77. 发明专利

GB2043322A PICKUP ARM DEVICE 未知
公开(公告)号：GB2043322A
公开(公告)日：1980-10-01
申请号：GB8004624
申请日：1980-02-12
申请人： MATSUSHITA ELECTRIC IND CO LTD
IPC分类号： G11B3/14 , G11B3/32 , G11B3/16
摘要： A pickup arm device comprising a rotary bearing having a mounting bed rotatable about both the vertical and horizontal axes, and an arm assembly consisting of an arm, a cartridge mounting head shell at one end thereof, a rider weight at the other end thereof and a mount or saddle which is formed between the ends thereof and adapted to be slidably mounted on the mounting bed of the rotary bearing, whereby the arm assembly including a cartridge may be easily replaced.

78. 发明专利

GB1566749A GRAMOPHONE PICK UP ARM DEVICES FOR PLAYING BACK SIGNALS RECORDED ON RECORD DISCS 未知
公开(公告)号：GB1566749A
公开(公告)日：1980-05-08
申请号：GB5243176
申请日：1976-12-15
申请人： MATSUSHITA ELECTRIC IND CO LTD
IPC分类号： G11B3/14 , G11B3/18 , G11B3/16
摘要： A phonograph pickup arm device wherein one end of a balance weight is connected to one end of an arm through a spring, and a first magnet is supported at the other end of the weight and is immersed in a viscous oil. A second magnet is disposed for displacement toward or away from the first magnet for adjusting the magnetic force acting therebetween so that the compliance of the device which is related to the arm resonance frequency, may be changed and consequently the arm resonance amplitude may be substantially reduced.

80. 发明专利

NL7704697A 未知
公开(公告)号：NL7704697A
公开(公告)日：1977-11-01
申请号：NL7704697
申请日：1977-04-28
申请人： SONY CORP
IPC分类号： C08L23/00 , B05D3/10 , B05D7/14 , B29C55/00 , B29C65/00 , B29C65/70 , B32B15/08 , B32B15/085 , C08J5/12 , C08L7/00 , C08L21/00 , C08L23/26 , C08L51/00 , C08L51/02 , C08L101/00 , C09J5/02 , C23C22/00 , C23C22/07 , G11B3/10 , G11B3/12 , G11B3/16 , G11B3/30 , G11B3/32 , G11B3/36 , G11B3/38 , G11B3/34
摘要： A tone arm assembly for record players having a first motor for rotating a tone arm in the vertical direction, a second motor for rotating the tone arm in the horizontal direction with respect to a record disc, respectively, a detector for detecting low frequency vertical and horizontal vibrations of the tone arm during the reproduction of a record disc and feeding back an output signal of the detector to the motors so as to cancel the vibrations, whereby high fidelity reproduction of sounds can be performed. Further, the stylus pressure adjustment and elevation angle adjustment of the tone arm are also performed.

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