Title: Key switch terminal caging device for key button type accordion
Application Number: 200520140407 Application Date: 2005.12.27
Publication Number: 000000000 Publication Date:
Approval Pub. Date: 2007.01.31 Granted Pub. Date: 2007.01.31
International Classifi-cation: G10D11/02;G10D11/00
Applicant(s) Name: Jiangyin Goldcup Angel Musical Inetrument Co.,Ltd. Address:
Inventor(s) Name: Shi Jianming;Miu Tingyu;Miu Qingping
Attorney & Agent: tang renlan
Abstract:
    The utility model relates to a caging device on the key-button accordion alternate keys end comprising frames (1) arranged on the sound board (3) of the accordion and two position-limit mechanisms (2), wherein each position-limit mechanism consists of an inflexion activity sheet (21), an up dog driver (22), a roller (23), a down dog driver (24), an inflexion valve plate (25), a position-limit framework (26), a pendulum bar (27), a spring (28) and a support of the pendulum bar (29), one side of the inflexion activity sheet is connected to the inflexion keys of the accordion and the other side is connected to one side of the up dog driver firmly connected to the roller arranged on the two frames. One side of the down dog driver is fixed with the roller and the other side is hinge joint with the end of the inflexion valve plate (5), one side of the position-limit framework (6) is fixed with the roller (3) and the other side is hinge joint with the pendulum bar, the pendulum bar is hinge joint with the support of the pendulum bar (9) arranged on the sound board (3), the spring (8) is provided on the pendulum bar (7). If the said device is provided, to press each inflexion key will accurately reach the best position, so the inflexion and the automatic changing tone problems can be avoided while the user plays the accordion.
Time: 10
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