Patent attributes
A locking structure includes: a locking protrusion and a locking arm. The locking arm includes a flexible arm main body and an engaging projection portion protruding from an outer surface of the arm main body. The locking protrusion includes a protrusion main body on which an arm guide surface, a protruding tip surface, and an engaging surface are disposed along the engagement direction, and a jig groove that is formed in the protrusion main body. The engaging projection portion is formed on the outer surface at a position away from an arm tip of the arm main body in the engagement direction. The protruding tip surface is longer than the arm tip in the engagement direction. The jig groove cuts out the protrusion main body in the engagement direction from the arm guide surface to the protruding tip surface.