曾在贵刊先后读过两篇文章,介绍将钢琴断弦轴退出的方法。笔者觉得勿需去探讨偌多的“凑合”与“应付”的办法,其实在实用中是有一件专用工具的,它用起来方便,就是制作也颇简单。这件工具也可以称为“扳手”,形状完全像一把调律专用的“T”形扳手。其扳头钢制,前端是一深约15mm的圆孔,内径一般为6.5mm,重要的是内螺纹为左旋(反扣,见右图)。使用时,将扳头前端圆孔套在断弦轴 Have read two articles in your magazine, introduced the piano out of string axis exit method. In my opinion, there is no need to discuss the methods of “improvise” and “cope with”. In fact, there is a special tool in practical use. It is convenient to use and is also quite simple to make. This tool can also be called a “wrench” and is shaped exactly like a T-shaped wrench for tuning. Its wrench steel, the front is a deep hole about 15mm, the inner diameter is generally 6.5mm, the important thing is the internal thread for the left (anti-buckle, see right). When in use, set the front end of the spanner to the broken axis