Combined keyboard instrument, silent system and regulating knob mechanism for changing release time
A keyboard instrument and adjusting button technology, which can be applied to stringed instruments, electroacoustic instruments, instruments, etc., can solve the problems of difficult, heavy workload, and expensive conversion from acoustic pianos to silent pianos.
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no. 1 example
[0053] see figure 2 , 3 , the mute piano adopting the present invention generally includes an acoustic piano 6 and a mute system 7 . In this example, the acoustic piano is a grand piano and includes a keyboard 6a, an action mechanism 6b, hammer assemblies 13, a buffer mechanism (not shown) and strings S. As shown in FIG. On the other hand, the mute system 7 has a hammer stopper 30a and an electronic sound generation system 30b. When the pianist plays a piece of music on the keyboard 6a, the operating mechanism 6b selectively drives the hammer assembly 13 to rotate by being disengaged. If the hammer stopper 30a is in the free position, the hammer assembly 13 strikes the string S associated therewith, whereby the string S vibrates to produce a piano tone. On the other hand, if the hammer stopper 30a is in the blocking position, the hammer assembly 13 bounces off the hammer stopper 30a without any interference with the hammer stopper, and returns to its rest. The electronic ...
no. 2 example
[0100] see Figure 9 , another kind of mute piano of the present invention also mainly includes a grand piano 6 and a mute system 7A. This grand piano is similar to that used in the silent piano of the first embodiment, and its components are marked with the same reference numerals as those of the grand piano of the first embodiment, so no more detailed description is given.
[0101] The muting system 7A also includes a hammer stopper (not shown), an electronic sounding system (not shown), and an auxiliary adjustment knob slave mechanism 23A. The sub-adjustment knob slave mechanism 23A is similar to the sub-adjustment knob slave mechanism of the first embodiment except for the buffer device. The buffer column 223a is replaced by a buffer tube 323a. The buffer tube 323a is elastic, which inhibits the strut 12 from making sound.
[0102] The struts 12 are the same as in a standard grand piano, except that the hammer stops, electronic sounding system, and auxiliary adjustment ...
no. 3 example
[0104] see Figure 10 . Yet another silent piano of the present invention also generally has a large piano 6 and a mute system 7B. This grand piano is similar to that used in the mute piano of the first embodiment, and its constituent members are designated by the same reference numerals as those of the grand piano of the first embodiment, so that their detailed descriptions are omitted.
[0105] The muting system 7B also includes a hammer stopper (not shown), an electronic sounding system (not shown), and an auxiliary adjustment knob slave mechanism 23B. The slave mechanism 23B is similar to the auxiliary adjustment knob slave mechanism of the first embodiment, but the damper is different. The bumper posts 223a are replaced by composite bumpers each realized by a rigid strip 423 and a bumper sheet 424 . The rigid strip 423 protrudes downward from the lower surface of the adjusting rod 23 and is covered by the buffer sheet 424 . The buffer sheet 424 can be made of felt, fa...
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