An assembly structure having an assembling component and an assembled component assembled to the assembling component, the assembly structure comprising: a first abutting portion and a second abutting portion in which the assembling component and the assembled component abut against each other when the assembled component is assembled by the assembling component, wherein the first abutting portion has (i) a hook member extending in the assembling direction, and (ii) a locking member which locks the hook member so as not to move along the assembling direction in a state in which the assembled component is assembled to the assembling component, and wherein the second abutting portion has (i) a protruding member extending in the assembling direction, and (ii) a rigid fitting member which rigidly fits the protruding member by the rigid fitting member being plastically deformed by the protruding member when the assembled component is assembled to the assembling component, thereby restricting the movement of the protruding member in a direction substantially orthogonal to the assembling direction, characterized in that a plurality of protrusions (701, 702, 801, 802), plastically deformed by the protruding member are disposed on the rigid fitting member in a plurality of directions substantially orthogonal to the assembling direction. a first abutting portion and a second abutting portion in which the assembling component and the assembled component abut against each other when the assembled component is assembled by the assembling component, wherein the first abutting portion has (i) a hook member extending in the assembling direction, and (ii) a locking member which locks the hook member so as not to move along the assembling direction in a state in which the assembled component is assembled to the assembling component, and (i) a hook member extending in the assembling direction, and (ii) a locking member which locks the hook member so as not to move along the assembling direction in a state in which the assembled component is assembled to the assembling component, and wherein the second abutting portion has (i) a protruding member extending in the assembling direction, and (ii) a rigid fitting member which rigidly fits the protruding member by the rigid fitting member being plastically deformed by the protruding member when the assembled component is assembled to the assembling component, thereby restricting the movement of the protruding member in a direction substantially orthogonal to the assembling direction, (i) a protruding member extending in the assembling direction, and (ii) a rigid fitting member which rigidly fits the protruding member by the rigid fitting member being plastically deformed by the protruding member when the assembled component is assembled to the assembling component, thereby restricting the movement of the protruding member in a direction substantially orthogonal to the assembling direction, characterized in that a plurality of protrusions (701, 702, 801, 802), plastically deformed by the protruding member are disposed on the rigid fitting member in a plurality of directions substantially orthogonal to the assembling direction.