Spray assembly for a dishwasher appliance

A dishwasher appliance comprising:

• a tub that defines a wash compartment;
• a rack assembly mounted within the wash compartment of said tub and configured for receipt of articles for washing;
• and
• a spray assembly for applying wash fluid to articles within said rack assembly, said spray assembly defining an axial direction, a radial direction, and a circumferential direction, said spray assembly comprising:
• a base unit mounted to said tub, said base unit defining an inlet for receipt of wash fluid and an outlet;
• a mounting bracket rotatably mounted to said base unit, said mounting bracket comprising:
• an annular sidewall that has an inner surface and an outer surface, the annular sidewall also defining a plurality channels;
• a post mounted to the annular sidewall and extending away from the outer surface of the annular sidewall, the post having an upper surface;
• and
• a tab mounted on the upper surface of the post;
• and
• a spray arm selectively secured to said mounting bracket, said spray arm comprising:
• a main body that defines a chamber configured for receipt of wash fluid from the outlet of said base unit, the main body also having a bottom surface that faces said mounting bracket, the main body defining a detent on the bottom surface of the main body, the detent receiving the tab of said mounting bracket;
• a circular sidewall mounted to the main body and extending away from the bottom surface of the main body;
• a plurality of projections mounted to the circular sidewall, each projection of the plurality of projections received within a respective channel of the plurality of channels of the annular sidewall.

A spray assembly for a dishwasher appliance, the spray assembly defining an axial direction, a radial direction, and a circumferential direction, the spray assembly comprising:

• a base unit defining an inlet for receipt of wash fluid and an outlet;
• a mounting bracket rotatably mounted to said base unit;
• a spray arm defining a chamber configured for receipt of wash fluid from the outlet of said base unit;
• a plurality of radial tabs mounted to said mounting bracket or said spray arm, said plurality of radial tabs oriented in the radial direction such that said plurality of radial tabs projects along the radial direction;
• a plurality of radial slots defined by said mounting bracket or said spray arm, said plurality of radial tabs received by said plurality of radial slots;
• a plurality of axial tabs mounted to said mounting bracket or said spray arm, said plurality of axial tabs oriented in the axial direction such that said plurality of axial tabs projects along the axial direction;
• a plurality of axial slots defined by said mounting bracket or said spray arm, said plurality of axial tabs received by said plurality of axial slots, and
• wherein said spray arm is selectively secured to said mounting bracket with said plurality of radial tabs and said plurality of axial tabs such that one of said plurality of radial tabs and said plurality of axial tabs hinders relative rotation in a clockwise direction and the other hinders relative rotation in a counterclockwise direction.