A tape feeder includes a gate, a gate drive mechanism, and a tape feed mechanism. The gate is provided in an insertion port through which a carrier tape storing components is inserted. In the gate drive mechanism, a tape feed mechanism which drives the gate in opening and closing directions feeds the components stored in the inserted carrier tape to a pickup position. The gate drive mechanism includes a spring member which biases the gate in the closing direction, and a solenoid which drives the gate in the opening direction against a biasing force of the spring member.