Spensley Horn Jubas & Lubitz
String fixing device for string instruments
 The string fixing device adopts lock members arranged on the top surface of a head near the boundary area between the neck and head of a string instrument. One end of the strings are fixedly sandwiched between a pressing member and the top surface of the lock member, thereby being fixed to the head. Since the lock member and the pressing member function as a nut, length of the string is determined as the length as measured from the bridge to the position fixedly sandwiched by the lock member. String height adjusting means adjusts height of the lock member as measured from the top surface of the head as occasion demands. As a result, the string fixing device adjusts, on one side, height of the string as measured from the head at the position sandwiched and fixed between the top surface of the lock member and the pressing member. Accordingly, the string fixing device permits easily adjusting the string to a height convenient for performance without machining the head or interposing an additional member such as a spacer between the head and the lock member. Further, since the strings are sandwiched and pressed directly between the pressing member and lock member, the string is always kept in close contact with the lock member, thereby preventing sound intervals of the strings from being delicately deviating even while the string is pressedly sandwiched and fixed by the pressing member. 
Yamaha Corporation
G G
G10D G10D
inventional inventional
Yasuo Kiyoshi
Suzuki Minakuchi