| 摘要 |
An anti bending device for bars of a roll-up door is provided to prevent bending of the bars while raising or lowering, by connecting the bars using a plurality of support bands. An anti bending device for bars of a roll-up door comprises a plurality of support bands(500) which are installed at regular intervals on a strut(360) on the roll-up door(100). A plurality of bars(400) are fixed to the support bands. Both ends of the strut are fixed to the upper side of a guide frame, and brackets(310) supporting an axis rod(300) are formed on the strut. The support band has hook parts on the top and the bottom and the bar has joint grooves on the top and the bottom so that the hook parts are inserted to the joint grooves. |
