Gear moving assembly and transmission comprising same

A transmission comprising:

• an input device including a plurality of input gears having different sizes;
• and
• an output device including a plurality of output gears having different sizes;
• wherein at least one of the input device and the output device comprises:
• a hollow shaft extending in a longitudinal direction, and having moving slots formed therein;
• a sliding unit including:
• a base disposed in the hollow portion of the shaft, with a plurality of sliding channels extending in the longitudinal direction being formed in an outer circumferential surface of the base at positions circumferentially spaced apart from each other;
• and a plurality of sliders including respective rods that are disposed in the respective sliding channels to be slidable relative to the shaft in the longitudinal direction;
• a plurality of connection pins disposed through the respective moving slots, and each including a first end interlocked with sliding of the corresponding slider;
• and
• the input gears or the output gears configured to be independently interlocked with remaining ends of the respective connection pins.