Extension shaft of musical box

The utility model relates to a serinette extension shaft. An unthreaded rod extension shaft (1) is inserted into a drum, and is screwed with a dummy club (2a) of the far-end cap (2) of the drum. Thus, the drum and the extension shaft (1) become one unit in coaxial rotation. The rotary direction of t...

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Bibliographic Details
Main Authors BAI GUOHUI, MIAO JIANMING, ZHU YUNDE
Format Patent
LanguageEnglish
Published 07.12.1994
Edition5
Subjects
ACOUSTICS
AUTOMATIC MUSICAL INSTRUMENTS
MUSICAL INSTRUMENTS
PHYSICS
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Summary:The utility model relates to a serinette extension shaft. An unthreaded rod extension shaft (1) is inserted into a drum, and is screwed with a dummy club (2a) of the far-end cap (2) of the drum. Thus, the drum and the extension shaft (1) become one unit in coaxial rotation. The rotary direction of the screwed screw threads is contrary to the rotary direction of the drum (5). The extension shaft (1), a dummy club inner hole (3b) of the near-end cap (3) of the drum and inner holes of the supporting (4) form the loose cooperation of the unthreaded shaft to unthreaded holes. The utility model has the advantages of lower manufacturing cost and convenient dismounting.
Bibliography:Application Number: CN1993235672U