JPH0320395U

JPH0320395U -

Info

Publication number: JPH0320395U
Application number: JP8034089U
Authority: JP
Priority date: 1989-07-07
Filing date: 1989-07-07
Publication date: 1991-02-27

Description

[Brief explanation of drawings]

第１図はこの考案の一実施例の構成を示す一部
切欠正面図、第２図は同実施例の左側面図、第３
図は同実施例の右側面図、第４図は同実施例に適
用されているプランジヤ用軸受の構成を示す側面
図、第５図は同プランジヤ用軸受および弾性部材
の構成を示す正断面図、第６図は同実施例に適用
されているプツシユロツド用軸受の構成を示す側
面図、第７図は同プツシユロツド用軸受および弾
性部材の構成を示す正断面図、第８図は従来のペ
ダル駆動機構の構成を示す正面図、第９図は従来
のペダル駆動用ソレノイドの概略構成を模式的に
示す断面図である。１０……固定部、１１……可動部、１４……固
定鉄心、１４ａ……軸受嵌合孔、１５……蓋体、
１５ａ……軸受嵌合孔、１７……ブラケツト（固
定部材）、２０……プツシユロツド、２３……プ
ランジヤ、３０……プランジヤ用軸受、３１……
弾性部材、３２……プツシユロツド用軸受、３３
……弾性部材。 Figure 1 is a partially cutaway front view showing the configuration of one embodiment of this invention, Figure 2 is a left side view of the same embodiment, and Figure 3 is a left side view of the same embodiment.
The figure is a right side view of the same embodiment, Figure 4 is a side view showing the configuration of the plunger bearing applied to the same example, and Figure 5 is a front sectional view showing the configuration of the plunger bearing and elastic member. , Fig. 6 is a side view showing the configuration of the push rod bearing applied to the same embodiment, Fig. 7 is a front sectional view showing the configuration of the push rod bearing and the elastic member, and Fig. 8 is a conventional pedal drive. FIG. 9 is a front view showing the structure of the mechanism, and a sectional view schematically showing the general structure of a conventional pedal drive solenoid. 10... Fixed part, 11... Movable part, 14... Fixed core, 14a... Bearing fitting hole, 15... Lid body,
15a... Bearing fitting hole, 17... Bracket (fixing member), 20... Push rod, 23... Plunger, 30... Bearing for plunger, 31...
Elastic member, 32...Push rod bearing, 33
...Elastic member.

Claims

[Claims for Utility Model Registration] A substantially cylindrical fixed part that generates a magnetic attraction force when supplied with excitation current corresponding to performance data; The automatic performance comprises a movable part connected to a pedal thrust bar that moves up and down, and the pedal thrust bar moves up and down when the movable part is attracted by a magnetic attraction force generated by the fixed part. A solenoid for driving a piano pedal includes: approximately cylindrical bearings disposed at both axial ends of the fixed part and supporting the movable part; and substantially cylindrical bearings each formed on each member at both axial ends of the fixed part. , a bearing fitting hole drilled to a position a predetermined depth deeper than the axial length of the bearing; and a bearing fitting hole inserted into the bearing fitting hole, the movable part being longer than the predetermined dimension in the axial direction; A pedal for a player piano, comprising: an annular elastic member having a through hole that loosely fits into the bearing fitting hole; and a fixing member that presses and fixes the bearing and the elastic member inserted into the bearing fitting hole. Drive solenoid.