| 摘要 |
PURPOSE:To improve durability for rollers and door swing-preventing parts by a method wherein a hanger roller mechanism in which a pair of rollers travel, being aligned in seesaw-like state, for an automatic door device is constructed in a thin structure, and a door can be hung down to a position right below the rollers. CONSTITUTION:An alignment metal fixture attaching hole 12 is opened to a position approximately in the middle of a roller metal fixture 2 with rollers 4 pivoted on its both ends. A projecting part 14 that is fitted into the alignment metal fixture attaching hole 12 so that it can make seesaw-like swing motion is provided in projection in a thickness thicker than the roller metal fixture 2 to a base plate 13 of an alignment metal fixture 3 in a size larger than the alignment metal fixture attaching hole 12 from one side of the base plate, and fixing bolts 5, 5 are provided in projection to the front end face of the base plate. The projecting part 14 is fitted into the alignment metal fixture attaching hole 12, and the fixing bolts 5, 5 are inserted into slots 10, 10 for fixing and adjustment provided in parallel with each other to a back plate 1a of a hanger metal fixture 1, and the alignment metal fixture 3 and the hanger metal fixture 1 are fixed together with nuts 6, 6 applied to the bolts. Thereby, the roller metal fixture 2 becomes available for seesaw-like swing motion. |
