Door drive of an up and over door, sectional door or sliding doo

Movable or removable closures – Up-and-over type; e.g. – moves from vertical to withdrawn... – With operator

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Details

403 46, E05F 1100

Patent

active

053678257

ABSTRACT:
A door drive of a up and over door, sectional side or sectional ceiling door or sliding door, especially of a garage door, comprises at least one cylindrical guide tube supported against a ceiling or side wall, has a slide carriage arranged for movement along the guide tube, an endless traction element and a drive for opening and closing the door. The carriage is connectable with the door panel via a connecting rod. The ends of the traction element are secured together by means of a turnbuckle. For better support of the guide tube and for sampler connection or coupling of the traction element with the slide carriage, a number of mounting brackets are secured to the upper side of each guide tube for receiving support struts for mounting in the guide tube to the garage ceiling or wall. The slide carriage slides with a tubular portion along the guide tube. It has a continuous longitudinal slit on its upper side so that it can pass the brackets. The slide carriage has furthermore a lateral coupling element which can releasably be coupled with the turnbuckle. The turnbuckle comprises opposedly arranged a left-handed threads and a right handed threads, respectively, at each end for receiving anchor screws at the ends of the traction element permitting tensioning of the traction element.

REFERENCES:
patent: 1256538 (1918-02-01), Eichner
patent: 2588028 (1952-03-01), McNinch
patent: 2885234 (1959-05-01), Larson
patent: 2953928 (1960-09-01), Anderson et al.
patent: 2992819 (1961-07-01), Jackson
patent: 3481074 (1969-12-01), Moss
patent: 3526994 (1970-09-01), Delaney
patent: 3801207 (1974-04-01), Herbenar et al.

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