Abstract: A structure for attaching a blocking member displaces the blocking member from an insertion position where clamping pawl parts are arranged in a notch part to a fixation position where an opening edge portion is clamped in clearances between the clamping pawl parts and a main body part of the blocking member, thereby to attach the blocking member to an attachment object member. A projecting part that projects toward the blocking member is formed around an opening. At least a part of the projecting part is a side surface projecting part that projects along an outer peripheral side of a side surface of the blocking member when the blocking member is displaced to the fixation position. At least one of the clamping pawl parts is a low-load clamping pawl part. A clearance size between the low-load clamping pawl part and a main body part of the blocking member is provided to be larger than a clearance size between another clamping pawl part and the main body part of the blocking member.

Abstract: An air-conditioning apparatus includes: an air-conditioning case that includes an air passage through which air-conditioned wind flows and that is molded using a die; and an attachment part that is fixed on an outer surface of the air-conditioning case and includes a plate-shaped projection piece, which projects from a case main body part of the attachment part and includes a positioning hole passing through the projection piece. The air-conditioning case includes: a holding piece that projects from the outer surface to be engaged with the projection piece; and a positioning pin that projects from the outer surface to be inserted in the positioning hole. The holding piece includes: a leg part that projects from the outer surface and is capable of being resiliently deformed; and an engagement part that is bent and extends from an end portion of the leg part and that is engaged with a part of the projection piece on its end side of the positioning hole.

Abstract: A structure for attaching a blocking member displaces the blocking member from an insertion position where clamping pawl parts are arranged in a notch part to a fixation position where an opening edge portion is clamped in clearances between the clamping pawl parts and a main body part of the blocking member, thereby to attach the blocking member to an attachment object member. A projecting part that projects toward the blocking member is formed around an opening. At least a part of the projecting part is a side surface projecting part that projects along an outer peripheral side of a side surface of the blocking member when the blocking member is displaced to the fixation position. At least one of the clamping pawl parts is a low-load clamping pawl part. A clearance size between the low-load clamping pawl part and a main body part of the blocking member is provided to be larger than a clearance size between another clamping pawl part and the main body part of the blocking member.

Abstract: An air-conditioning apparatus includes: an air-conditioning case that includes an air passage through which air-conditioned wind flows and that is molded using a die; and an attachment part that is fixed on an outer surface of the air-conditioning case and includes a plate-shaped projection piece, which projects from a case main body part of the attachment part and includes a positioning hole passing through the projection piece. The air-conditioning case includes: a holding piece that projects from the outer surface to be engaged with the projection piece; and a positioning pin that projects from the outer surface to be inserted in the positioning hole. The holding piece includes: a leg part that projects from the outer surface and is capable of being resiliently deformed; and an engagement part that is bent and extends from an end portion of the leg part and that is engaged with a part of the projection piece on its end side of the positioning hole.