Movable or removable closures – With means mounting closure for reciprocation – Pendant from horizontal guide
Reexamination Certificate
1999-10-08
2002-09-10
Strimbu, Gregeory J. (Department: 3634)
Movable or removable closures
With means mounting closure for reciprocation
Pendant from horizontal guide
C049S404000, C016S08740R
Reexamination Certificate
active
06446394
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a housing for automatic door operators, which housing serves to receive and house mechanical and electrotechnical components, such as running devices, suspension devices for movable door leaves, drive units comprising power transmissions, couplings, motor and displacement tracking equipment, auxiliary drives, control/regulation systems, power packs and sensors.
2. Background Information
Such housings are well known with automatic door operators for sliding doors, curved sliding doors, as well as swing door operators. In the housing, that usually comprises a header section with a closing section placed thereupon, are arranged the running devices for the sliding leaves with their suspension devices and also the drive units such as a motor, driving wheels and deflection rollers for a toothed belt or, for example, a chain. Furthermore, inside the housing closing section can be located an electronic control/regulation system required for the drive motor and activated by appropriate sensor signals.
Such housings present the disadvantage that, for example, with sliding door operators measuring very often 4 to 5 meters, there are repeated problems when one single person has to remove or replace this type of closing section.
German Patent No. 297 03 231 U1 reveals a smoke detector unit which is linked to a slide channel. Such a smoke detector unit is used for door closers, which smoke detector, in case of smoke development, releases the activated hold open device and to permit the door closer to carry the door into the regular closed position. The slide channel with the smoke detector unit thus form a single unit and are placed in one common housing. In this case, the housing includes a U-shaped cover slipping on a base body. In addition, easily detachable housing covers close the housing ends.
The company brochures DORMA ST, DORMA TST Automatic sliding door installations and Telescopic sliding door installations, for example disclose a sliding door of the before-described type. In that case, the sectional drawings in the brochure represent a mounting section with a simultaneously incorporated roller rail, to which section is connected a partially pivotable non-detachable cover. Pivoting the cover is realized by a plastic clip provided at the connection to the mounting section and giving a limited room to move. When in its pivoted position, the cover has to be blocked by a holder. The aforementioned brochures are published by DORMA GmbH+Co. KG, which company's address is Breckerfelder Str. 42-48, D-58256 Ennepetal, Federal Rep. of Germany.
OBJECT OF THE INVENTION
Therefore the object of the invention is to improve the imperfections of the state of the art by providing a small housing suitable to receive substantially all components for automatic doors, moreover to be utilized for sliding door operators as well as for swing door operators whereby the assembly should be easy to perform and the opening of such housings should be realized without needing essentially any tools.
SUMMARY OF THE INVENTION
In at least one embodiment of the present invention, the object can be achieved in a housing which includes a header section basically constructed of two legs arranged at an angle of approximately 90° with respect to each other and linked by a connecting leg. The header section can be hooked onto and positively and non-positively fastened to a wall or building section by means of a recessed opening or slot which is at an approximately 45° angle with respect to each of the leg sections. A connecting or interengaging leg can connect the two legs, which connecting leg is parallel to the slot and conformed thereto, and subsequently positively and non-positively connected. The protruding leg of the header section presents on its free end a rounded projection to which is associated an undercut conformed to a web directed towards the housing interior, which undercut becoming later a leg which extends parallel to the protruding leg. At the free end of the leg is arranged a deflecting holding leg limited by a ball-shaped projection and joined by a pivotable closing section which is fixable by means of an interengagement. At the closing section's end can be placed a terminal section as well as end caps to be mounted at the header section's fronts. Further possible embodiments of the present invention are discussed hereinbelow in the features of the present invention.
In this case, the housing can include a header section basically comprising two legs arranged at an angle of approximately 90° towards each other and linked by a connecting leg, hooked to a base section by means of a location which describes an angle of approximately 45°, and simultaneously conformed at the thereto parallel extending connecting legs, and subsequently positively and non-positively connected to the base section. The protruding leg of the header section can be provided with an interengagement for the closing section that builds the cover to the outside, in a way that the closing section can come to a substantially secure attachment through the interengagement with the leg of the header section.
In other words, in at least one embodiment according to the present invention, the housing can include a header section which basically comprises two legs that are arranged at an angle of about 90° with respect to each other and linked by a connecting leg. The header section can be hooked to a base section by means of a location or slot formed between the connecting leg and a hook portion which is positioned at a similar angle as the connecting leg. The hook portion can extend from the header section at approximately a 45° angle with respect to the two legs. The hook portion and slot can permit a positive and non-positive connection of the header section to the base section. The protruding leg of the header section can be provided with an interengagement for the closing section that builds the cover to the outside, in a way that the closing section can come to a substantially secure attachment through the interengagement with the leg of the header section.
The closing section can later be fastened by means of locking elements inside the housing. Separately mounted end caps can be placed at the header sections fronts. For this reason, it can be possible to produce such housings as light metal extruded sections and to cut them to the desired drive's length.
A carrier leg and a support leg, both directed to the housing inside, can simultaneously be conformed to the header section. The carrier leg can serve to receive a separate running profile, to move the carrier rollers of the trolley for the automatic sliding leaf. Moreover, the running surface can be exchangeable and simultaneously via the dead stops conceived as stoppers, which connect the roller rail respectively on the ends with the carrier leg. As the running surface is exchangeable, it is hereby possible to employ different running surfaces corresponding to the desired application type, that means also corresponding to the door leaf's weight. In this case, the running surfaces may be larger, smaller, with straight or rounded surface, developed in a convex or concave form, whereby the rollers corresponding to the running surface can be adapted to the chosen form. With the intention to prevent such leaf from falling out of the installation respectively to exclude any malfunction of the door through non-intentioned removal, these running devices are also provided with support rollers. This support roller leans on the before-mentioned support leg which running surface is concave.
In other words and according to at least one embodiment of the present invention, a carrier leg and a support leg, both extending towards the inside of the housing, can simultaneously be conformed to the header section. The carrier leg can serve to receive a separate running profile, on which profile can move the carrier rollers of the trolley for the automatic sliding leaf. Moreover, the run
Althoff Andreas
Finke Andreas
Dorma GmbH + Co. KG
Nils H. Ljungman & Associates
Strimbu Gregeory J.
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