thereof in a case of shifting to the reverse speed the first shift rail 10 is moved to the right in the drawing as shown in fig9 at this time the first rotation link 60 rotates anticlockwise with respect to the hinge 62 and pushes the second shift rail 20 to the left in the drawing therefore the sleeves s 1 and s 5 of the first and fifth synchronizer mechanisms syn 1 and syn 5 move to opposite directions of each other and shifting to the reverse speed is achieved in a case of shifting to the neutral state from the reverse speed the first shift rail 10 is forcibly moved to the left in the drawing by the control finger forming the shift control apparatus and the second shift rail 20 is moved to the right in the drawing by the elastic force of the elastic member 80 and is returned to the original position thereof in addition the third shift rail 30 is operated in a case of shifting to the second forward speed at this time if the third shift rail 30 as shown in fig1 is moves to the left in the drawing the second rotation.