Patent ID: 8667861

Claim:
A shifter being fixed on a handle of a bicycle and connected with a rear speed changer of a cable and comprising: a body, a first bar, and a speed changing mechanism, the body including the first bar axially coupled with a side thereof, a chamber formed on a bottom end thereof to receive the speed changing mechanism, and two tabs disposed on two sides of the bottom end thereof respectively, and each tab including a first hole, and the body including a first aperture arranged on a top end thereof and communicating with the chamber to insert the cable into the chamber via the first aperture so as to connect with a first seat, the body including a first retaining ring secured on one side thereof to position the body on the handle, the chamber including a first positioning pillar, an axial shaft, a second aperture, and a first returning spring, all of which are disposed on an inner wall of the chamber, the first positioning pillar being provided to fix a first fixing piece in the chamber, and the axial shaft being used to axially position a first hook in the chamber; wherein the second aperture includes a first ball and a first spring, both of which are retained in a first groove of the first seat so that when the first seat rolls or releases the cable, a sound is made, the body includes two second holes disposed on two sides thereof individually and communicating with the chamber to insert a first spindle so that the speed changing mechanism is fixed in the chamber; between the two tabs is axially secured a Tee rotary stem, and the rotary stem includes a lateral peg disposed on an upper side thereof, and the lateral peg includes two third holes formed on two sides thereof respectively, an extension and a first opening, both of which are disposed on a front side of the lateral peg, wherein a first screw is inserted into the first hole of the tab and the third hole of the rotary stem, and the rotary stem is axially fixed between the tabs, the first bar includes a second opening fixed on a top end thereof and a third opening secured on a middle section thereof, a second screw is inserted through the second opening to be locked on the first opening of the extension of the rotary stem so that the first bar is axially coupled with the extension of the rotary stem, such that the first bar is moved inward and upward, wherein the first bar includes a first lever arranged therein and a second lever inserted into the third opening to position the first lever so that the first bar is moved inward to brake the bicycle or is moved upward to move the first lever, shifting down the bicycle.