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US4829873A Expired / Lapsed US ⏱️ 0.0 years remaining

String fixing device for string instruments

Assignee: Yamaha Corp
•
Filing: 1988-04-28
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Granted: 1989-05-16
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Expires: 2008-04-28
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Abstract

Abstract 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.

Inventors

  • 👤 Yasuo Suzuki
  • 👤 Kiyoshi Minakuchi

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 19:49
CPC Classifications
G; G10; G10D; G10D1/00; G10D1/04; G10D1/05; G10D1/08; G10D1/085; G10D3/00; G10D3/12

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 114 words
A string fixing device for string instruments comprising: a lock member mounted on the top surface of a head near the boundary between a neck and said head of a string instrument; a pressing member mounted on said lock member for fixedly sandwiching strings between said pressing member and said lock member; string height adjusting means having a screw for adjusting height of said lock member as measured from the top surface of the head by turning said screw into the end of said lock member; and fixing means for fixing about center portion of said lock member on said head, so that said end of said lock member is capable of being raised.
Claim 2
Dependent Claim 114 words
A string fixing device for string instruments comprising: a lock member mounted on the top surface of a head near the boundary between a neck and said head of a string instrument; a pressing member mounted on said lock member for fixedly sandwiching strings between said pressing member and said lock member; string height adjusting means having a screw for adjusting height of said lock member as measured from the top surface of the head by turning said screw into the end of said lock member; and fixing means for fixing about center portion of said lock member on said head, so that said end of said lock member is capable of being raised.
Claim 3
Dependent Claim 69 words
A string fixing device for string instruments according to claim 1 wherein said lock member is mounted so that said end of said lock member is capable of being raised up by way of a base plate fixedly attached to the top surface of the head, and said fixing means are clamping screws loosely inserted through said lock member and said pressing member, and engaged with said base plate.
Claim 4
Dependent Claim 32 words
A string fixing device for string instruments according to claim 1 wherein said fixing means are clamping screws loosely inserted through an end of said lock member and engaged with the head.
Claim 5
Dependent Claim 35 words
A string fixing device for string instruments according to claim 1 wherein said pressing member is formed as rectangular washer capable of fixedly sandwiching two strings simultaneously between said pressing member and said lock member.

References Cited (Backward Citations)

US4517874A Cited
US4574678A Cited
US4608906A Cited
US4669350A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1992-05-15 1992-11-14 1993-05-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1996-05-15 1996-11-14 1997-05-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2000-05-15 2000-11-14 2001-05-16 $7700.00 Window Closed / Lapsed

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