초록 ▼

A track support structure (30) for a sectional overhead garage door (10) having rollers (16) for guiding the door (10) between open and closed positions. The track support structure (30) has a track (38) and a track support beam (40). Track (38) has an upper horizontal flange (38) and a lower trough

A track support structure (30) for a sectional overhead garage door (10) having rollers (16) for guiding the door (10) between open and closed positions. The track support structure (30) has a track (38) and a track support beam (40). Track (38) has an upper horizontal flange (38) and a lower trough (72). The free edge of the trough (72) has an inturned tubular bead (74) and the free edge of upper flange (38) has an inturned tubular bead (74). An angle-shaped track support beam (40) has legs (88) and (90). The free edges of legs (88) and (90) have respective tubular beads (92) and (94). Tubular beads (92), (94) have a diameter between 11/2and 21/2times the diameter of beads (74), (76) on track (38).

대표청구항 ▼

[ What is claimed is:] [1.] A track support structure for a sectional overhead door having rollers for guiding the door between open and closed positions; said track support structure comprising:a track having a vertical track section constructed for positioning adjacent a side of said door, a horiz

[ What is claimed is:] [1.] A track support structure for a sectional overhead door having rollers for guiding the door between open and closed positions; said track support structure comprising:a track having a vertical track section constructed for positioning adjacent a side of said door, a horizontal track section constructed for supporting the rollers and door in an open position, and a curved intermediate portion connecting said horizontal track section to said vertical track section; said track sections defining in cross section an upper horizontal flange, a vertical side flange integral with said horizontal flange, and a lower generally arcuate trough integral with said vertical flange, said trough and said horizontal flange each having a free edge;a track support member secured to said vertical side flange of said track for supporting said track; anda tubular bead extending along the free edge of each of said horizontal flange and said trough, said tubular beads being turned inwardly of respective said horizontal flange and said trough, and being of an elliptical cross section wherein the minor axis is at least about 60 percent of the major axis.