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Function of the Piano Mechanics

  • The mechanics are in the basic position.
  • The jack (1) is located under the hammer roller (2).
  • The button (3) has not yet been pressed.
  • The pilot (4) lifts the saddle (5) of the lifting link.
  • The jack transfers the force to the hammer handle (6) via the hammer roller (2).
  • The hammer handle is moved towards the string, at the same time the button lifts the damper spoon (7) and the damper (8).
  • The jack is moved towards the release button (9).
  • As you move forward, the jack rotates in the direction of the arrow.
  • Inertia moves the hammer to the string.
  • This is how the tone is created and the string sounds!
  • The string throws the hammer back. The buckling screw (10) presses the repeating leg (11) downwards.
  • The hammer roll rests on the repeater leg in front of the jack.
  • The hammer is “caught” at the tail (12) by the catcher (13) and held securely.
  • This safely prevents an unintentional double strike (bouncing.)
The system is now in a stable, defined state. When the button is released again, the button releases the jack to the front again.
  • The button only needs to be released about halfway.
  • The jack (1) slides back under the hammer roller (2).
  • Now the tone can be struck again.

The same note can therefore be struck again in quick succession - it is repeated. That is why such a mechanism is called:

"Repetition Mechanics"

An important prerequisite for the perfect functioning of the mechanics is that it is properly regulated.

Adjusting is called the setting of the various screws on the mechanics. The perfect regulation guarantees the optimal interaction of the individual mechanical components exactly as the pianist needs to make the instrument sound.

In order for this interaction to always work perfectly, an instrument needs service in addition to regular tuning.

Treat yourself and your instrument to this service!
Here you can watch the process in slow motion
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