Machine element or mechanism – Mechanical movements – Reciprocating or oscillating to or from alternating rotary
Patent
1995-09-20
1998-01-27
Herrmann, Allan D.
Machine element or mechanism
Mechanical movements
Reciprocating or oscillating to or from alternating rotary
49362, 384125, 384220, 474150, F16H 1906, F16H 5517, E05F 1142
Patent
active
057111855
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to apparatus for driving a door or the like guided in at least two tracks, having a drive mechanism with a cross-section shaped like a guide track, consisting of a drive sprocket connected to a drive motor, at least one turn-around sprocket and at least one carrier element for a door panel or the like attached to the chain.
Such apparatus is known from the prior art and is used particularly for driving door panels which are guided in two guides and consist of several leaves interconnected in pivotable manner. To drive such door panels, there is normally provided a drive motor to which there is flange-mounted a reducing gear, which is connected by a shaft to the drive sprocket. The drive sprocket is in closed-loop engagement with a chain, and particularly a roller chain, which is looped over a turn-around pinion. A carrier element is attached to the chain, which forms the interconnection between the chain and the door panel.
In the prior art, the drive sprocket and the turn-around sprocket are retained in appropriate bearings, which are fastened to the building, Accordingly, in the prior art, the installation of such apparatus required, as a first step, that the bearings with the respective drive sprocket and turn-around sprocket be fastened at an appropriate location on the building, and particularly that these be screwed on, after which the roller chain with the carrier is engaged on the drive sprocket and the turn-around sprocket and finally the carrier is attached to the door panel.
It will be seen that the apparatus known in the prior art requires a relatively burdensome installation on the building, and, if not mounted correctly, may be unreliable under some circumstances.
SUMMARY OF THE INVENTION
Proceeding from this prior art, it is the task of the invention to provide apparatus of this type for driving a door or the like which is guided in at least two tracks, which is capable of being mounted on the building in a simple manner, and which provides reliable and trouble-free operation even when mounted by non-professionals.
The solution to this task is provided by apparatus of this type in which the drive sprocket, the turn-around sprocket and the chain, together with the guide rail, form a completely preassembled unit.
Apparatus embodying this concept for driving a door guided in two tracks or the like has the special advantage that the components of the apparatus provide a drive assembly which is completely reliable and extremely easy to handle in installation, which can also be easily installed by non-professionals. To this end, the drive sprocket, the turn-around sprocket and the chain are preassembled together with the guide track, so that, in installing this preassembled unit, only the guide track needs to be attached to the building and then the carrier of the chain to the door panel. Thus there are eliminated the steps needed for the apparatus known from the prior art, of separate installation of drive sprocket and turn-around sprocket on the building and subsequent application of the chain to the drive sprocket and turn-around sprocket.
An embodiment of the inventive apparatus which is especially simple in its structure results from having the drive sprocket and the turn-around sprocket positioned in at least one retaining fork which is removably retained within the guide track. In so doing, it has proven to be particularly advantageous to position the drive sprocket and the turn-around sprocket in separate retaining forks. This arrangement has the special advantage that it simplifies the manufacture of apparatus of this type because an installation unit consisting of retaining fork and drive sprocket, or turn-around sprocket, can easily be slid into the guide track, so that a unit is formed which can be readily attached to the building.
It is further advantageous to make the retaining fork of a synthetic material, preferably a pressure setting plastic. This achieves easy and inexpensive production of the retaining fork and furthermore su
REFERENCES:
patent: 1641135 (1927-06-01), Gosline
patent: 2063895 (1936-12-01), Mack
patent: 2732601 (1956-01-01), Franko
patent: 2822166 (1958-02-01), Herbert
patent: 3587660 (1971-06-01), Dion
patent: 4231191 (1980-11-01), Ellmore
patent: 5236148 (1993-08-01), Valentine
patent: 5511878 (1996-04-01), Dedoes et al.
Herrmann Allan D.
Lipton Robert S.
Marantec Antriebs - und Steuerungstechnik GmbH & Co. Produktions
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