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US 6,266,922 B1Granted
Revolving door
AssigneeDorma GmbH + Co. KG
InventorManfred Rockenbach
Life of this patent
Estimating the term…
Abstract
A revolving door with a ceiling drive beam that is integrated into the ceiling construction, whereby the ceiling construction consists of two circular segments. The ceiling drive beam is located between the segments and is continuous over the inside diameter of the face band and is connected on the face side to the face band. The result is a component that braces and stiffens the ceiling construction, so that other elements of the ceiling construction, such as the struts that support the face band, can be realized lighter in weight and can be manufactured more economically. When the ceiling drive beam is adapted to accommodate face bands of different diameters, all that is necessary is an elongation of the ceiling drive beam on the end, while retaining its cross section.
Claims17
A revolving door system, which revolving door system is configured to be installed in a portion of a building having a building floor surface and a building ceiling surface, said revolving door system comprising:
- a plurality of door panels being configured to be rotatably mounted about an axis of rotation;
- a drive arrangement for driving a revolving door arrangement, said drive arrangement comprising a motor for supplying a rotary torque;
- a control system for controlling the rotary torque supplied by said motor;
- a ceiling surface structure being configured to be disposed generally along a ceiling of a building;
- said ceiling surface structure comprising at least two arcuate segments being configured to be detachably connected and being configured to form a circular structure when connected;
- said circular structure comprising an outer perimeter and an inner perimeter within said outer perimeter;
- each of said at least two arcuate segments comprising a face band configured to be generally disposed along the outer perimeter of said circular structure;
- said at least two arcuate segments comprising a first arcuate segment and a second arcuate segment;
- said first arcuate segment having a first radius of curvature and said second arcuate segment having a second radius of curvature, said first radius of curvature being substantially equal to said second radius of curvature;
- each of said first arcuate segment and said second arcuate segment comprising a first butt edge and a second butt edge;
- said circular structure comprising a detachable connection between said first butt edge of said first arcuate segment and said first butt edge of said second arcuate segment and a detachable connection between said second butt edge of said first arcuate segment and said second butt edge of said second arcuate segment;
- a beam configured to hold at least one of said drive arrangement and said control system;
- said beam having a first end and a second end;
- at least one of said at least two arcuate segments being configured to abut at least another of said at least two arcuate segments to form a first abutment;
- at least one of said at least two arcuate segments being configured to abut at least another of said at least two arcuate segments to form a second abutment substantially diametrically opposite from said first abutment;
- said first end of said beam being configured to be disposed adjacent to said first abutment;
- said second end of said beam being configured to be disposed adjacent to said second abutment;
- and
- the length of said beam being substantially equal to the inside diameter of said inner perimeter of said circular structure.
16 more elements
A revolving door system for installation in a portion of a structure, said revolving door system comprising:
- a plurality of door panels being configured to be rotatably mounted about an axis of rotation;
- at least two arcuate segments being configured to be detachably connected and being configured to form a circular structure when connected;
- said circular structure comprising an outer perimeter and an inner perimeter within said outer perimeter;
- each of said at least two arcuate segments comprising a face band configured to be generally disposed along the outer perimeter of said circular structure;
- a beam arrangement for supporting said at least two arcuate segments, said beam arrangement having a first end and a second end;
- at least one of said at least two arcuate segments being configured to abut at least another of said at least two arcuate segments to form a first abutment;
- at least one of said at least two arcuate segments being configured to abut at least another of said at least two arcuate segments to form a second abutment substantially diametrically opposite from said first abutment;
- said first end of said beam arrangement being configured to be disposed adjacent to said first abutment;
- said second end of said beam arrangement being configured to be disposed adjacent to said second abutment;
- and
- the length of said beam arrangement being substantially equal to the inside diameter of said inner perimeter of said circular structure.
8 more elements
A kit to construct a revolving door system, said kit comprising:
- a plurality of door panels being configured to be rotatably mounted about an axis of rotation;
- at least two arcuate segments being configured to be detachably connected and being configured to form a circular structure when connected;
- said circular structure comprising an outer perimeter and an inner perimeter within said outer perimeter;
- each of said at least two arcuate segments comprising a face band configured to be generally disposed along the outer perimeter of said circular structure;
- a beam arrangement for supporting said at least two arcuate segments, said beam arrangement having a first end and a second end;
- at least one of said at least two arcuate segments being configured to abut at least another of said at least two arcuate segments to form a first abutment;
- at least one of said at least two arcuate segments being configured to abut at least another of said at least two arcuate segments to form a second abutment substantially diametrically opposite from said first abutment;
- said first end of said beam arrangement being configured to be disposed adjacent to said first abutment;
- said second end of said beam arrangement being configured to be disposed adjacent to said second abutment;
- and
- the length of said beam arrangement being substantially equal to the inside diameter of said inner perimeter of said circular structure.
8 more elements
Dependencies are inferred from the claim text.