JPS6023893U

JPS6023893U - Vertical piano frame structure

Info

Publication number: JPS6023893U
Application number: JP11617483U
Authority: JP
Inventors: 立田　弘喜
Original assignee: ヤマハ株式会社
Priority date: 1983-07-26
Filing date: 1983-07-26
Publication date: 1985-02-18

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 the drawing]

′第１図ａは従来の竪型ピアノを示す一部破断側面図、
ｂはフレームを取出して示す正面図、第２図は従来のフ
レームの他の例を示す正面図、第３図はこの考案に係る
フレーム構造の一実施例を示す正面図、第４図は第３図
ＩＶ−ＩＶ線拡大断面口、第５図はフレーム本体と補強
部材の結合構造を示す正面図、第６図ａ、　ｂはフレー
ム本体と補強部材の結合構造の他の実施例を示す正面図
および■−■線拡線断大断面図７図はこの考案の他の実
施例を示す正面図である。２・・・・・・弦、３０−−−−−−フレーム、３１・
・・・・・フレーム本体、３２・・・・・・補強部材、
ａ・・・・・・上面、ｂ・・・・・・下面、ｃ、　ｄ・
・・・・・側面、ｆ・・・・・・接合面、ｇ、　ｈ・・
・・・・直交面。'Figure 1a is a partially cutaway side view of a conventional vertical piano;
b is a front view showing the frame taken out, FIG. 2 is a front view showing another example of the conventional frame, FIG. 3 is a front view showing an example of the frame structure according to this invention, and FIG. Figure 3 is an enlarged cross-sectional view taken along the line IV-IV; Figure 5 is a front view showing the joint structure between the frame body and the reinforcing member; Figures 6 a and b are front views showing other embodiments of the joint structure between the frame body and the reinforcing member. FIG. 7 is a front view showing another embodiment of this invention. 2...Strings, 30-------Frame, 31.
...Frame body, 32...Reinforcement member,
a...Top surface, b...Bottom surface, c, d.
...Side surface, f...Joint surface, g, h...
...Orthogonal plane.

Claims

[Scope of utility model registration request]

The top and bottom surfaces and both sides are parallel to each other, and the height of the treble section gradually decreases from the bass side to the treble side, forming a straight or curved slope connecting the bottom surface and the sides. The frame body has a frame body on which a large number of strings are stretched, a joint surface joined to the slope, and two orthogonal surfaces perpendicular to the bottom and side surfaces of the frame body, respectively, and the frame body is shaped like a right triangle or a right triangle. 1. A frame structure for a vertical piano, characterized in that the overall shape is rectangular by being composed of a substantially fan-shaped reinforcing member.