Patent ID: 7487615

Claim:
A run channel structure for guiding relative movement between the run channel structure and an associated door glass, the run channel structure comprising: a run channel body having a generally U-shaped cross-section, the run channel body including an inner wall, an outer wall and a peak portion inter-connecting top end portions of the inner and outer walls; an inner lip extending from a bottom end portion of the inner wall towards the peak portion; an outer lip extending from a bottom end portion of the outer wall towards the peak portion; an upper lip disposed above the inner lip and extending from an intermediate portion of the inner wall to the peak portion; a projection disposed on a distal end portion of said inner lip and directed towards said upper lip; and a sash peak portion; wherein, when the associated door glass abuts on the inner lip during said relative movement between the associated door glass and the run channel structure, the associated door glass presses the inner lip towards the inner wall to cause the projection on the distal end portion of the inner lip to press the upper lip, whereby a reaction force is exerted on the associated door glass through the projection and the inner lip to reduce a speed of said relative movement, wherein the upper lip, the inner wall and the run channel body peak portion jointly define a hollow cross-sectional portion having a generally triangular configuration, wherein the run channel body peak portion has an air releasing hole extending therethrough, wherein the run channel body is mounted on said sash peak portion, said sash peak portion having an air releasing opening portion extending therethrough, and wherein air flows into and out of an inner space of the hollow cross-sectional portion through said air releasing hole and said air releasing opening portion as said hollow cross-sectional portion expands and contracts.