Electromagnetic door opener
AssigneeEldomat Innovative Sicherheit GmbH
InventorEberhard Bartholdi
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Abstract
The invention relates to an electromagnetic door opener comprising a housing for installing in a door frame, a pivotable cover which can be rotated between an open position and a closed position, and a security device operating counter to a forced rotation of the cover from the closed position into the open position, which comprises a primary security step and a secondary security step. Said door opener is characterized in that the secondary security step comprises a locking element which is supported in a form fit on the base of the housing of the door opener housing.
Claims19
A door securing system comprising:
- a door opener housing for fitting into a door frame, said door opener housing including a housing floor;
- a hinged flap rotatable associated with said door opener housing between an open position and a closed position;
- a first lever pivotably associated with said door opener housing, said first lever including a first lever gliding surface;
- a second lever pivotably associated with said door opener housing, said second lever including a second lever gliding surface configured for contacting with said first lever gliding surface of said first lever;
- a third lever pivotably associated with said door opener housing, said third lever including an outer edge;
- and
- a fourth lever pivotably associated with said door opener housing, said fourth lever having a first arm including a stop pin configured to travel on said outer edge of said third lever, and a second arm including a blocking element configured to block said second lever in the closed position;
- wherein said first, second, third and fourth levers are configured to forcibly resist twisting of said flap from said closed position into said open position;
- wherein said first lever is supported in a formlock against said housing floor by way of said second lever.
A door securing system comprising:
- a door opener housing for fitting into a door frame, said door opening housing including a housing floor;
- a hinged flap rotatable associated with said door opener housing between an open position and a closed position;
- a first lever pivotably associated with said door opener housing, said first lever including a first lever gliding surface;
- a second lever pivotably associated with said door opener housing, said second lever including a second lever gliding surface configured for contacting with said first lever gliding surface of said first lever;
- a third lever pivotably associated with said door opener housing, said third lever including an outer edge;
- a fourth lever pivotably associated with said door opener housing, said fourth lever having a first arm including a stop pin configured to travel on said outer edge of said third lever, and a second arm including a blocking element configured to block said second lever in the closed position;
- and
- a lifting magnet and a plunger core pin operably associated therewith, said plunger core pin, during an opening operation from a retracted position into an extended position, acts upon and causes said third lever to rotate, and wherein at said retracted position said fourth lever rests with said stop pin against said third lever;
- wherein said first, second, third and fourth levers are configured to forcibly resist twisting of said flap from said closed position into said open position;
- wherein said first lever is supported in a formlock against said housing floor by way of said second lever.
Dependencies are inferred from the claim text.