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Title:
BONE CONDUCTION TYPE RECEIVER
Document Type and Number:
Japanese Patent JP2009033504
Kind Code:
A
Abstract:

To provide a bone conduction type receiver capable of simply adjusting a contact position and contact pressure of an acoustic vibrator of a bone conduction speaker and suppressing increase in volume and weight.

The bone conduction type receiver is constituted of a U-shaped arm 1 and a bond conduction speaker part connected to its tip, wherein the bone conduction speaker part is constituted of an adjustment arm 2 having a bending part 4 and the acoustic vibrator 6 provided to its tip, at a connection part 5 between the U-shaped arm 1 and the adjustment arm 2, a hollow part 1-2 is provided at the edge of the U-shaped arm 1, a projected part 2-4 is provided at the edge of the adjustment arm 2, the contact position of the acoustic vibrator 6 is adjusted by changing its plug depth, conditions of pressure welding of the acoustic vibrator 6 is adjusted by reaction force of twist by changing a twisting angle of an axis, and the U-shaped arm 1 and the adjustment arm 2 are fixed by a tightening screw 3 of the connection part 5.


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Inventors:
TAMURA MITSUO
TAKASHIMA AKIKO
NASHIHARA HIROSHI
HARADA HAJIME
UMEDA HIROKI
Application Number:
JP2007195660A
Publication Date:
February 12, 2009
Filing Date:
July 27, 2007
Export Citation:
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Assignee:
NEC TOKIN CORP
International Classes:
H04R1/10; H04R1/00
Domestic Patent References:
JP2000354288A2000-12-19
JPS5551014A1980-04-14
JP2006148295A2006-06-08
JP2006238383A2006-09-07
JPS60167493A1985-08-30
JPH01188796A1989-07-28
JP2007158924A2007-06-21
JPH10234712A1998-09-08