公开(公告)号：US3640332A

公开(公告)日：1972-02-08

申请号：US3640332D

申请日：1969-11-12

Applicant: OVERHEAD DOOR CORP

Inventor： LUBY JOHN J ,  PEMBERTON PAUL E

IPC: E06B9/08 ,  E06B9/171 ,  E06B9/58

CPC classification number: E06B9/58 ,  E06B9/08 ,  E06B9/171

Abstract: A roll-type door for closing an opening in a wall and having a plurality of horizontally hinged, relatively narrow slats, the lengthwise ends of which move along upright guide tracks mounted upon the wall adjacent the opposite sides of the opening. The door, when in opened position, is wound upon a plurality of flanged disks, some of which are secured to a shaft rotatably supported above the opening. Spring-biased counterbalance means yieldably resists downward unrolling movement of the door which can be effected manually, by a chain drive, or by a shaft and gear arrangement.

Abstract translation: 一种用于封闭壁中的开口并具有多个水平铰接的相对狭窄的板条的辊型门，其纵向端部沿安装在邻近开口的相对侧的壁上的直立导轨移动。 当门处于打开位置时，门被卷绕在多个凸缘盘上，其中一些被固定到可旋转地支撑在开口上方的轴上。 弹簧偏置的平衡装置可以有效抵抗门的向下展开运动，这可以通过手动，链条驱动，或通过轴和齿轮装置进行。