JPS5994395U

JPS5994395U - Atsuprite piano keyboard lid

Info

Publication number: JPS5994395U
Application number: JP18847182U
Authority: JP
Inventors: 山下　秀雄
Original assignee: ヤマハ株式会社
Priority date: 1982-12-15
Filing date: 1982-12-15
Publication date: 1984-06-27

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来の鍵盤蓋の取付は構造を示すアップライト
ピアノの要部側断面図、第２図はこの考案に係る鍵盤蓋
の一実施例を示す閉蓋状態の断面図、第３図は蝶番の斜
視図、第４図ａ、　　ｂは鍵盤蓋前付の状態を示し、ａ
は譜面板として使用されない時の状態、ｂは譜面板とし
て使用される時の状態である。１・・・・・・鍵盤蓋前、１Ａ・・・・・・鍵盤蓋子、
１Ｂ・・・・・・鍵盤蓋前付、４・・・・・・蝶番、５
・・・・・・鍵盤若奥、６・・・・・・蝶番、２５・・
・・・・第１蝶番片、２６・・・・・・第２蝶番片、２
７・・・・・・第３蝶番片、３２・・・・・・第１の回
動軸、３４・・・・・・第２の回動軸。Fig. 1 is a sectional side view of the main part of an upright piano showing the structure of a conventional keyboard lid installation, Fig. 2 is a sectional view of an embodiment of the keyboard lid according to this invention in a closed state, and Fig. 3 4 is a perspective view of the hinge, Figures 4a and 4b show the front of the keyboard lid, and a is a perspective view of the hinge.
b is the state when not used as a music board, and b is the state when used as a music board. 1...Keyboard cover front, 1A...Keyboard cover,
1B...Keyboard lid front attachment, 4...Hinge, 5
...Keyboard young back, 6...Hinge, 25...
...First hinge piece, 26... Second hinge piece, 2
7... Third hinge piece, 32... First rotating shaft, 34... Second rotating shaft.

Claims

[Scope of utility model registration request]

A keyboard lid that can be opened and closed is located at the bottom of the keyboard, and a hinge is attached to the tip of the keyboard lid so that it is perpendicular to the keyboard lid when the lid is closed, and rotates toward the inside surface of the keyboard lid when the music score is installed. and a keyboard lid front attachment, the hinge having a first hinge piece fixed to the inner surface of the keyboard lid, and one end of which is rotatably connected to the first hinge piece to attach the keyboard a second hinge piece that closely separates from the inner surface of the tip of the lid; and a third hinge piece that is fixed to the inner surface of the keyboard lid front attachment and has one end rotatably connected to the other end of the second hinge piece. A keyboard lid for an upright piano, characterized by comprising: