A coupling apparatus for coupling a protector (7) to a tool body (2) of a gardening tool (1) includes a coupling member (10 34 35 51) movable in a coupling direction for coupling the protector (7) to the tool body (2). A removal preventing device (13 25 28 30 31 33 55) is provided at the protector (7) and capable of restricting movement of the coupling member (10 34 35 51) in a direction opposite to the coupling direction when the coupling member (10 34 35 51) does not couple the protector (7) to the tool body (2).
