Rolling steel door
OwnerMing-Kun Leeinventor
Life of this patent
Estimating the term…
Abstract
A rolling steel door, which includes a plurality of transverse rod members, a plurality of sleeves respectively sleeved onto the transverse rod members, a plurality of links respectively coupled to the transverse rod members to hold the transverse rod members in parallel, and a plurality of locating pins respectively fastened to the transverse rod members to stop the sleeves against the links, wherein the transverse rod members are hollow tubes; the links each comprise two coupling ends, two coupling holes respectively formed on the coupling ends and coupled to a respective transverse rod member, a reinforcing peripheral flange perpendicularly raised around the periphery thereof and the border of each coupling hole, and a neck on the middle.
Claims7
A rollable barrier comprising:
- (a) a plurality of transverse rod members;
- (b) a plurality of sleeve members coupled in substantially coaxial manner to each said transverse rod member, each said sleeve member having a substantially tubular contour;
- (c) a plurality of links coupled to said transverse rod members for maintaining said transverse rod members substantially in a parallel relationship, each said link including a pair of opposed coupling end portions and a neck portion extending longitudinally therebetween, each said coupling end portion having formed therein a coupling hole, said coupling end and neck portions having a reinforcing peripheral flange portion extending laterally therefrom;
- and,
- (d) a plurality of locating pins respectively fastened to said transverse rod members for retentively engaging said sleeve members.
A rollable barrier comprising:
- (a) a plurality of transverse rod members;
- (b) a plurality of sleeve members coupled in substantially coaxial manner to each said transverse rod member, each said sleeve member having a substantially tubular contour;
- (c) a plurality of links coupled to said transverse rod members for maintaining said transverse rod members substantially in a parallel relationship, each said link including a pair of opposed coupling end portions and a neck portion extending longitudinally therebetween, each said coupling end portion having formed therein a coupling hole, said coupling end and neck portions having a reinforcing peripheral flange portion extending laterally therefrom, said peripheral flange portion defining a top flange;
- and,
- (d) at least one cover plate coupled to and laterally covering one said link, said cover plate engaging said top flange of one said link and having formed therein a pair of holes respectively disposed in substantial alignment with said coupling holes of said link;
- and,
- (e) a plurality of locating pins respectively fastened to said transverse rod members for retentively engaging said sleeve members.
Dependencies are inferred from the claim text.