Dear pianoexpert and thesimon, I have a doubt, among many that plague me, seeing a drawing of upright piano mechanics, I would like to ask you, politely, what is the organ responsible for the launching of the hammer against the strings? I saw that the hammer head is anteriorly constrained by a counter-spring attached to a kind of lace, and on the front side there is a kind of ribbon then anchored with a small hook to the bridge.... can you explain to me how it works?
We will talk about the mechanics of the upright piano in an upcoming tutorial. In any case, it is always the escapement lever that launches, pushing under the capstan, the hammer towards the string. The backcheck helps the hammer to return back a little and, above all, to not go forward again .... "at will". That small strap you see on the spring of the hammer capstan helps the entire hammer in its motion.
