A bucket (32), a lower front edge (43F) of which is provided in a blade shape, is equipped with: a first linear part (43) that extends horizontally from the lower front edge (43F) towards the back of the bucket; a curved part (45) that is continuous with a back edge (43B) of the first linear part (43) at a lower edge (45L), and is formed at a prescribed bucket radius (R); a second linear part (46) that is continuous with an upper edge (45U) of the curved part (45), and is inclined upwards towards the bucket opening; a third linear part (48) that is bent towards the bucket opening by a bend part (47) at a front edge (46F) of the second linear part (46), and extends further towards the bucket opening; a reinforcing member (54) that is provided to the upper part of the third linear part (48), and reinforces said upper part; and a coupling member (57) that is provided to the back of the curved part (45).