Personal emergency escaping device from skyscrapers
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A62B-001/14
A62B-001/00
출원번호
US-0942750
(2004-09-16)
등록번호
US-7357224
(2008-04-15)
우선권정보
IL-158019(2003-09-18)
발명자
/ 주소
Halevy,Daniel
출원인 / 주소
Halevy,Daniel
대리인 / 주소
Ladas and Parry LLP
인용정보
피인용 횟수 :
1인용 특허 :
8
초록▼
Escape device that comprises a sliding box worn by each escaping person, such that the escape device is combined with an escape cable. The sliding box comprises a supporting structure; a driven wheel supported in the structure for rotation, and adapted to be in engagement with the escape cable and t
Escape device that comprises a sliding box worn by each escaping person, such that the escape device is combined with an escape cable. The sliding box comprises a supporting structure; a driven wheel supported in the structure for rotation, and adapted to be in engagement with the escape cable and to be driven thereby into rotation. The rotary speed correspond to the speed of the motion of the sliding box relative to the escape cable, and therefore, corresponds to the speed of descent of the escaping person; means for measuring the rotary speed of the driven wheel and therefore, the speed of descent of the escaping person; and braking means, for slowing the rotation of the driven wheel, and therefore the speed of descent of the escaping person, whenever it is required to maintain the speed of descent within predetermined limits.
대표청구항▼
The invention claimed is: 1. An escape device comprising a sliding box adapted to be worn by each escaping person, said escape device being combined with an escape cable, said sliding box comprising: a supporting structure; a driven wheel supported in said structure for rotation, said wheel being a
The invention claimed is: 1. An escape device comprising a sliding box adapted to be worn by each escaping person, said escape device being combined with an escape cable, said sliding box comprising: a supporting structure; a driven wheel supported in said structure for rotation, said wheel being adapted to be in engagement with said escape cable and to be driven thereby into rotation with a rotary speed corresponding to the speed of the motion of said sliding box relative to said escape cable, and therefore adapted to be corresponding to the speed of descent of said escaping person; means for measuring said rotary speed of said driven wheel and therefore also for measuring said speed of descent of said escaping person; and brake means for slowing the rotation of said driven wheel, and therefore also for slowing the speed of descent of the escaping person, whenever required to maintain said speed of descent within predetermined limits; wherein the sliding box is provided with a control which is adapted to receives the measurement of the speed of descent of the escaping person, compares it with a predetermined desired speed, and if it is greater than said desired speed, actuates the aforesaid brake means to reduce it to said desired speed; and wherein the control is implemented by a hydraulic system and comprises: an oil pump, the rotation axis of which is mechanically coupled to the rotation axis of the driven wheel, for transferring rotational motion from said driven wheel to said oil pump, and for providing a counteracting force, being generated by said oil pump in response to said rotational motion, to said driven wheel, for regulating said rotational motion; a hydraulic control unit, comprising: an oil inlet, connected to the oil outlet of said oil pump and to an oil passage inside said control unit; a regulating valve, for closing/opening said oil inlet of said control unit, for regulating the flow rate of the oil passing through said oil inlet, and thereby, the pressure in said oil passage, said regulating valve comprising a piston connected to a rod movable through a sealed opening, said piston being movable inside a cylindrical housing and its position inside said cylindrical housing being determined according to the pressure exerted by a spring on one of its sides, and a pressure exerted on its other side by oil, being contained within said cylindrical housing, having a free access to said oil passage; a valve, for determining the rate of oil entering said cylindrical housing; an accumulator, comprising a piston connected to a rod movable through a sealed opening, said piston being movable inside a cylindrical oil reservoir, connected to said oil passage, and its position in said cylindrical oil passage being determined according to the pressure exerted by a spring on one of its sides, and a pressure exerted on its other side by the oil contained within said oil reservoir, the rod of said accumulator and the rod of said regulating valve being mechanically coupled to one another in a way that whenever the rod of the regulating valve moves to close the oil inlet of the control unit, the rod, and therefore the piston, of said accumulator being moved in a way that oil from said cylindrical oil reservoir is pushed, via said oil passage, to fill the additional volume that is created by the movement of the rod of the regulating valve, said oil reservoir allowing changes in said oil passage while a relative motion is being regulated; an oil outlet, said oil outlet being connected to said oil inlet of said oil pump; and an adjustable valve, for allowing changing the flow rate threshold of oil returning to said oil pump through said oil outlet of said hydraulic control unit. 2. An escape device according to claim 1, further comprising a braking cylinder, for employing a mechanical brake force directly on the driven wheel, which braking cylinder comprising a piston, connected to a rod movable through a sealed opening, the position of said piston being determined according to a first force exerted on one side of the piston by a spring, and a second force that counteracts the first force and is exerted on the other side of the piston by the oil pressure existing in the oil passage, one end of said movable rod being connected to said piston, and the other end of said rod being connected to a rubbing strip, said piston being pushed outwards, with respect to the hydraulic control unit, whenever the pressure in said oil passage increases as a result of an increase in the relative motion, thereby pushing said rubbing strip against said driven wheel, for providing a counteracting or braking force that will limit the increase in the relative motion, said pressure increase in the oil passage pushing outwards also the piston of an hydraulic needle valve for causing the oil passage between the oil inlet and oil outlet to open, for allowing reducing the relatively high pressure in the oil passage, after which said braking force, which is employed on the driven wheel by said rubbing strip, is reduced, or weakened, said hydraulic needle valve regulating the flow rate of the oil passing between the oil inlet and the oil outlet, through said oil passage. 3. An escape device according to claim 2, further comprising an electro-mechanical system for exerting brake force on the rubbing strip, comprising: a speed sensor, for monitoring the rotational speed of the driven wheel, and thereby, the descend speed, said speed sensor generating an electrical signal that represents the rotational speed of said driven wheel; an electro-mechanical needle valve, for closing/opening the oil passage inside the hydraulic control unit, for regulating the flow rate of the oil passing between the oil inlet and the oil outlet of the hydraulic control unit, and thereby, the pressure in the oil passage, said electro-mechanical needle valve translating electrical signals to physical positioning of a needle-like rod that is movable through a sealed opening; an electronic control unit, for accepting the electrical signal and generating a corresponding output signal to the electro-mechanical needle valve, for determining the position of said needle-like rod, thereby regulating the braking force employed on said driven wheel; and a battery pack, for powering said speed sensor, said electronic control unit and said Electro-mechanical needle valve. 4. An escape device comprising a sliding box adapted to be worn by each escaping person, said escape device being combined with an escape cable, said sliding box comprising: a supporting structure; a driven wheel supported in said structure for rotation, said wheel being adapted to be in engagement with said escape cable and to be driven thereby into rotation with a rotary speed corresponding to the speed of the motion of said sliding box relative to said escape cable, and therefore adapted to be corresponding to the speed of descent of said escaping person; means for measuring said rotary speed of said driven wheel and therefore also for measuring said speed of descent of said escaping person; brake means for slowing the rotation of said driven wheel, and therefore also for slowing the speed of descent of the escaping person, whenever required to maintain said speed of descent within predetermined limits; and emergency brake means adapted to be actuated by the escaping person, if required; wherein the emergency brake means comprises a screw-like rod, handle, nut, bearing, lever, pivot and mechanical arrangement that functions to keep the screw-like rod in a fixed longitudinal position with respect to the sliding box, said screw-like rod being screwable through said nut, to said nut said bearing is mechanically affixed, said screw-like rod being intended to be rotated by a person utilizing the sliding box for descending, by operating a handle that is coupled to said screw-like rod, causing said nut, and bearing, to slide along said lever so that a rubbing strip, which is affixed to the distal end of said lever, pushes one side of the driven wheel, and, thereby, provides a braking force for slowing said driven wheel to an arbitrary rotary speed, or slowing said driven wheel to a predetermined minimal rotary speed, or, if so required, for slowing said driven wheel until said driven wheel, and therefore, the sliding box, is completely stopped. 5. An escape device comprising a sliding box adapted to be worn by each escaping person, said escape device being combined with an escape cable, said sliding box comprising: a supporting structure; a driven wheel supported in said structure for rotation, said wheel being adapted to be in engagement with said escape cable and to be driven thereby into rotation with a rotary speed corresponding to the speed of the motion of said sliding box relative to said escape cable, and therefore adapted to be corresponding to the speed of descent of said escaping person; means for measuring said rotary speed of said driven wheel and therefore also for measuring said speed of descent of said escaping person; brake means for slowing the rotation of said driven wheel, and therefore also for slowing the speed of descent of the escaping person, whenever required to maintain said speed of descent within predetermined limits; and emergency brake means, to be actuated by the escaping person, if required; wherein the sliding box is provided with a control which is adapted to receives the measurement of the speed of descent of the escaping person, compares it with a predetermined desired speed, and if it is greater than said desired speed, actuates the aforesaid brake means to reduce it to said desired speed; and wherein the emergency brake means comprises a screw-like rod, handle, nut, bearing, lever, pivot and mechanical arrangement that functions to keep the screw-like rod in a fixed longitudinal position with respect to the sliding box, said screw-like rod being screwable through said nut, to said nut said bearing is mechanically affixed, said screw-like rod being intended to be rotated by a person utilizing the sliding box for descending, by operating a handle that is coupled to said screw-like rod, causing said nut, and bearing, to slide along said lever so that a rubbing strip, which is affixed to the distal end of said lever, pushes one side of the driven wheel, and, thereby, provides a braking force for slowing said driven wheel to an arbitrary rotary speed, or slowing said driven wheel to a predetermined minimal rotary speed, or, if so required, for slowing said driven wheel until said driven wheel, and therefore, the sliding box, is completely stopped.
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이 특허에 인용된 특허 (8)
England Robert L. (1443 Tamara Ct. Benicia CA 94510) Albert Donn E. (Florissant MO), Automatic emergency escape for tall structures.
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