Patent ID: 8584325

Claim:
A fitting system configured to be connected to a vehicle body-side member, comprising: a clip including a first projection having an engagement portion, and a second projection, and a trim board including a clip fitting seat, wherein the first projection is fastened to the clip fitting seat of the trim board and the second projection is fastened to the vehicle body-side member when the trim board is integrally fixed to the vehicle body-side member; the first projection has the engagement portion having a diameter that locally increases and decreases in a predetermined fastening direction that is substantially perpendicular to the trim board and the clip fitting seat has a plurality of latch lugs that are used to position the clip and are elastically deformed so that a distance between the plurality of latch lugs is enlargeable as the engagement portion is engaged with the plurality of latch lugs, so that the first projection is fastened to the clip fitting seat by being pushed in the predetermined fastening direction; and at least one of (i) at least two types of protruding portions as the engagement portion that differ in diameter are formed in the first projection at locations that are apart from each other in the predetermined fastening direction, or (ii) at least two sets of the plurality of latch lugs that differ in engaging area, at which the plurality of latch lugs are engaged with the engagement portion, are formed in the clip fitting seat at locations that are apart from each other in the predetermined fastening direction, the at least one of (i) the at least two types of the protruding portions as the engagement portion or (ii) the at least two sets of the plurality of latch lugs are formed so that the clip is fastened to the clip fitting seat in at least two staged fastened states which include an intermediate fastened state that is achieved by fastening the clip to the clip fitting seat at a low fastening load and a final fastened state that is achieved by fastening the clip to the clip fitting seat at a high fastening load.