(19)
(11)EP 1 156 472 A3

(12)EUROPEAN PATENT APPLICATION

(88)Date of publication A3:
30.07.2014 Bulletin 2014/31

(43)Date of publication A2:
21.11.2001 Bulletin 2001/47

(21)Application number: 01112256.1

(22)Date of filing:  18.05.2001
(51)International Patent Classification (IPC): 
G10C 3/16(2006.01)
G10C 3/26(2006.01)
(84)Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30)Priority: 19.05.2000 JP 2000148717

(71)Applicant: YAMAHA CORPORATION
Hamamatsu-shi Shizuoka-ken (JP)

(72)Inventor:
  • Inoue, Satoshi, Yamaha Corporation
    Hamamatsu-shi, Shizuoka-ken (JP)

(74)Representative: Geyer, Ulrich F. et al
WAGNER & GEYER Patentanwälte Gewürzmühlstrasse 5
80538 München
80538 München (DE)

  


(54)Regulating button mechanism for easily regulating escape timing, silent system cooperative therewith and keyboard musical instrument equipped therewith


(57) A silent piano includes a hammer stopper (71) changed between a free position out of the trajectories of hammer shanks (25b) and a blocking position on the trajectories for blocking strings (30) from being struck with the hammers (25) and a tandem regulating button mechanism (27) having standard regulating buttons (27b) and regulating bars (27c) used together with the hammer stopper (71) changed in the blocking position for changing escaping speed of jacks (20g), and an adjusting mechanism (27e) is provided between the regulating bars (27c) and a shaft (28a) for adjusting the regulating bars (27c) to appropriate angular positions, wherein the adjusting mechanism (27e) has regulating screws (27f) projecting from stationary brackets (29a) fixed to the shaft (28a) into a free space created in front of the array of action mechanisms (20) so that a tuner easily adjusts the regulating bars (27c) to the appropriate angular positions without removing the action mechanisms (20) from on the key bed.





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