A grill device includes a coupling mechanism (3) having first and second ratchet teeth (71, 81) that cooperate to permit movement of an upper grill unit (22) in a first direction (D1) for uncovering a lower grill unit (21), and to resist movement of the upper grill unit (22) relative to the lower grill unit (21) in a second direction (D2) opposite to the first direction (D1).
