[특허]Self-closing fire door

Self-closing fire door 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E05F-015/20
출원번호	US-0992441 (1992-12-17)
발명자 / 주소	McKeon James (Brooklyn NY)
출원인 / 주소	McKeon Rolling Steel Door Company, Inc. (Brooklyn NY 02)
인용정보	피인용 횟수 : 35 인용 특허 : 0

초록 ▼

The present invention is provided with a mechanism for controlling the opening and closing of a door comprising a speed reduction means for reducing a rotational speed. A high speed shaft is connected to the speed reduction means and is connectable to a means for rotating the input shaft, and a low speed output shaft is connected to the speed reduction means. A governor is mounted on the input shaft for limiting the rotational speed thereof, to also regulate the rotational speed of the output shaft. A brake is provided for preventing rotation of the output shaft, and a self-closing mechanism is operatively connected to the door. The self-closing mechanism is adapted for storing energy when the door is opened to an open position, and a connecting means operatively connects the output shaft to the self-closing mechanism. A releasing means is provided for releasing the brake to permit rotation of the output shaft under the urging of the self-closing mechanism whereby the self-closing mechanism releases the energy stored therein so as to close the door to a closed position when the brake is released by the releasing means.

대표청구항 ▼

A door comprising: a curtain including a plurality of interconnected relatively pivotal slats aligned in a single direction; means for guiding movement of said curtain between an opened position and a closed position; an outer tube operatively connected to a first end of said curtain for winding said curtain thereabout as said curtain is moved to its opened position and for unwinding said curtain as said curtain is moved to its closed position; an inner shaft; resilient tensioning means disposed between said outer tube and said first inner shaft, a first portion of said resilient tensioning means being operatively connected to said outer tube and a second portion of said resilient tensioning means being operatively connected to said inner shaft, wherein the tension of said resilient tensioning means is maintained substantially constant irrespective of the degree of opening or closing of said curtain to thereby tightly wind said curtain around said outer tube; regulating means for regulating the speed of said curtain comprising a speed reduction means for reducing a rotational speed, an input shaft connected to said speed reduction means, an output shaft connected to said speed reduction means, said speed reduction means for reducing the rotational speed of said output shaft relative to said input shaft, a governor mounted on said input shaft for limiting the rotational speed thereof thereby limiting the rotational speed of the said output shaft; a self-closing mechanism operatively connected to said curtain for moving said curtain to its closed position, said self-closing mechanism including a second inner shaft, a second outer tube and a second resilient tensioning means, wherein a first portion of said second resilient tensioning means is operatively connected to said second inner shaft and a second portion of said second resilient tensioning means is operatively connected to said second outer tube, wherein said second outer tube is operatively connected to said output shaft by said connecting means and is operatively connected to said curtain, wherein said second inner shaft is maintained in a fixed position, and wherein said second resilient tensioning means is adapted for storing energy when said curtain is moved to its open position; connecting means for operatively connecting said output shaft to said self closing mechanism and said inner shaft; a brake for preventing rotation of said output shaft thereby blocking movement of said self-closing mechanism; and releasing means for releasing said brake to free said output shaft for rotation, thereby enabling said movable means to release energy stored thereby and urge said curtain to its closed position.

이 특허를 인용한 특허 (35)

Mullet Willis Jay ; Kyle Donald Bruce ; Green Kelly Ray ; Asbury Harry Edward, Apparatus and method for windlocking a building opening.
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Willis J. Mullet ; Mark S. Hudoba, Apparatus and method for windlocking a building opening.
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Willis Jay Mullet ; Donald Bruce Kyle ; Kelly Ray Green ; Harry Edward Asbury, Apparatus and method for windlocking a building opening.
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Hsieh, Chung-Hsien, Door operator of fireproof door.
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Weik, III, Martin Herman, Intruder, theft and vandalism deterrent management system for controlling a parking area.
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Kettlewood David Robert, Latching mechanism for a generator fire door.
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Mullet Willis Jay ; Kyle Donald Bruce, Method and apparatus for driving and storing a covering.
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Thomas Gordon D. ; Burns Michael L., Method and apparatus for regulating the closing speed of a rolling fire door.
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Edward A. Swink ; Clayton M. Smith ; Carl L. Murphy ; Rick Lavelock, Power-driven shutter assembly.
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Swink Edward A. ; Smith Clayton M. ; Murphy Carl L. ; Lavelock Rick, Power-driven shutter assembly.
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Eiterman, Alvin; Kornish, Dwayne J., Reset mechanism for stored energy emergency barriers.
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Kornish, Dwayne Joseph; Eiterman, Alvin, Reset mechanism for stored energy emergency barriers.
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Mainers, Larry D.; Goyen, Mark J.; Lake, Vince, Retractable computer rack aisle roof.
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Mainers, Larry D.; Goyen, Mark J.; Lake, Vincent M., Retractable computer rack aisle roof.
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McKeon, James, Self-closing single-sided accordion fire door.
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Janscha, Ryan D.; Townsend, Robert G.; Tesmer, Troy D., Standby generator including enclosure with intake opening in rear wall and exhaust opening in front wall.
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Janscha, Ryan D.; Townsend, Robert G.; Tesmer, Troy D., Standby generator with air intake on rear wall and exhaust opening on front wall.
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Janscha, Ryan D.; Townsend, Robert G.; Tesmer, Troy D., Standby generator with air intake on rear wall and exhaust opening on front wall.
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Janscha, Ryan D.; Townsend, Robert G.; Tesmer, Troy D., Standby generator with removable panel.
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Janscha, Ryan D.; Townsend, Robert G.; Tesmer, Troy D., Standby generators including compressed fiberglass components.
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McKeon James M., Time delay release mechanism for a fire barrier.
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Hsieh, Chung-Hsien, Unidirectional centrifugal mechanism of door operator.
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Weik, III, Martin Herman; Fields, David; Altenberg, Gary, Virtual attendant system and parking management system.
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A	생활필수품
A62	인명구조; 소방(사다리 E06C)
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