Angle adjustment device for cymbal mounting frames

Claim 1

An improved angle adjustment device for cymbal mounting frames, comprising: an adjusting seat having a hollow sleeve portion for fitting onto a cymbal mounting frame, said sleeve portion having a hollow annular seat provided at a top side thereof, said hollow annular seat having a large-proportion open slot formed at its peripheral surface defining two slide edges are formed at the sides of said open slot and a closed portion at the peripheral side of said annular seat, said two slide edges being annularly provided with teeth at their respective inner sides, said closed portion having a positioning groove at an inner side thereof and a projecting orifice portion at an outer side thereof, a hole of said orifice portion communicating with said positioning groove, and a wing screw with a plurality of external threads being inserted into said orifice portion with an end thereof pushing against an urging element disposed in said positioning groove; a connecting means axially disposed in said annular seat of said adjusting seat such that said teeth of said annular seat may contact the peripheral surface of said connecting means, the ends of said connecting means being respectively provided with a connecting hole for securing thereon a sealing cover by means of a connecting element, said connecting means is radially provided with a securing hole with a plurality of internal threads; a slide block being substantially curved, a bottom side of said slide block being provided with two grooves with respect to said slide edges of said annular seat for slidably engaging said slide edges such that said slide block may slidably displace along said slide edges, said slide block having a central through hole; and a central shaft, said central shaft having a projecting block of an enlarged diameter at a suitable position at a middle section thereof, a top end section and a bottom end section each having a plurality of external threads, said bottom end section passing through said through hole of said slide block to lock with said securing hole of said connecting means, said upper section above said projecting block having fitted thereonto a cymbal securing structure for securing a cymbal, thereby said adjusting device may achieve stepless angle adjustment.