Patent ID: 8476513
Filing Date: 2013-07-02
Classification: G10D

Abstract:
1. A key cup adjustment device for a wind instrument comprising: a hinge rod; and a key cup assembly mounted on the hinge rod and having: at least one solid arm, each one of the at least one solid arm having: two ends, one of the ends mounted securely on the hinge rod and the other end mounted securely on a key cup; at least one adjusting arm mounted on the at least one solid arm and each one of the at least one adjusting arm having a free end corresponding to an outer surface of the key cup; and at least one abutting unit, and each one of the at least one abutting unit connected to the free end of one of the at least one adjusting arm and having: a positioning boss having a threaded hole; and a screw screwed into the threaded hole of the positioning boss and having an end surface abutting the outer surface of the key cup.