JPS62149093U

JPS62149093U -

Info

Publication number: JPS62149093U
Application number: JP3626786U
Authority: JP
Priority date: 1986-03-14
Filing date: 1986-03-14
Publication date: 1987-09-21

Description

[Brief explanation of the drawing]

第１図はこの考案をグランド型自動演奏ピアノ
に適用した場合の一実施例を示す側断面図、第２
図はキードライブユニツトの要部の一部破断背面
図、第３図は棚板の底面図、第４図はキードライ
ブユニツトを治具にセツトした状態を示す図、第
５図は従来のアクチユエータの一例を示す斜視図
である。１…棚板、２…鍵、５…電磁プランジヤ、１３
…突上げボタン、６０…長孔、６１…キードライ
ブユニツト、６２…ベースブラケツト、６６…前
後方向の移動調整機構、６７…左右方向の移動調
整機構、６８…上下方向の移動調整機構、７２Ａ
，７２Ｂ，７２Ｄ，７４Ａ，７４Ｂ，８３，８４
…調整ねじ。 Fig. 1 is a side sectional view showing an embodiment of this invention applied to a grand player piano;
The figure shows a partially broken rear view of the main parts of the key drive unit, Figure 3 is a bottom view of the shelf board, Figure 4 shows the key drive unit set in a jig, and Figure 5 shows a conventional actuator. It is a perspective view showing an example. 1... Shelf board, 2... Key, 5... Electromagnetic plunger, 13
... Push-up button, 60... Long hole, 61... Key drive unit, 62... Base bracket, 66... Front-back movement adjustment mechanism, 67... Left-right movement adjustment mechanism, 68... Vertical movement adjustment mechanism, 72A
, 72B, 72D, 74A, 74B, 83, 84
...adjustment screw.

Claims

[Claims for Utility Model Registration] (1) A key drive unit is constituted by a base bracket extending long in the direction in which the keys are arranged, and a plurality of electromagnetic plungers arranged on this base bracket; The push-up button of the electromagnetic plunger is provided on the lower surface of the rear end of each key, and the push-up button of the electromagnetic plunger is arranged in a long hole formed in the rear end of the shelf board, which is long in the left and right directions, so as to be adjustable in the front and back, left and right, and up and down directions. An actuator for a self-playing piano characterized by being compatible with the actuator. (2) Utility model registration claim 1, characterized in that the mechanism for adjusting the movement of the key drive unit in the front and back direction is comprised of at least a pair of front and rear adjustment screws that press the front and rear surfaces of the unit, respectively. Actuator for the described player piano. (3) The mechanism for adjusting the movement of the key drive unit in the left and right direction is comprised of a pair of left and right adjustment screws that press on both sides of the unit, respectively. The actuator for the automatic performance piano according to item 2. (4) The mechanism for vertically moving and adjusting the key drive unit is comprised of at least a pair of left and right adjusting screws that support the bottom surface of the unit. An actuator for a player piano according to any one of the following three items.