WO2012025932A1

WO2012025932A1 - Emergency life saving device for building

Info

Publication number: WO2012025932A1
Application number: PCT/IN2010/000678
Authority: WO
Inventors: Mahendra Hansaji Lohar; Narmadaben Amaratbhai Patel
Original assignee: Mahendra Hansaji Lohar; Narmadaben Amaratbhai Patel
Priority date: 2010-08-23
Filing date: 2010-10-13
Publication date: 2012-03-01

Abstract

A self-sufficient emergency life saving device for a building comprising at least one steel cable, wire or rope (F3) wound on a roller (F4), the rope (F3) attached to the person to be rescued; a gear train (F14, F15, F16) for generating reciprocating motion from the rotation of the roller (F4) and a pair of opposed springs (F19, F21) located within a chamber (Fl 8) to provide resistance to the reciprocating motion, thereby controlling the speed at which the rope (F3) winds out.

Description

TITLE OF THE INVENTION

Emergency Life Saving Device for Building FIELD OF THE INVENTION

The present invention relates to an escaping/rescuing device for rescuing people from a building in emergency. More particularly, the invention relates to an escaping/rescuing device for allowing people to escape from multi-storey building, from one storey up to hundred storeys and more, and safely land in a controlled manner on the ground in the event of emergency.

BACKGROUND OF THE INVENTION Multi-storey buildings are found all over the world generally, and therefore, in case of fire, terrorist attack, earthquake rescue of trapped persons becomes problematic. Any delay in rescue operation and in reaching a building might cause loss of lives of the building residents if there is no rescue system installed in the building. It is therefore an object of the present invention to provide an escaping/rescuing device for multi-storey building which can enable people to be rescued from the building, timely and independently of any external rescue services.

OBJECT OF THE INVENTION

The present invention provides an inexpensive escaping/rescuing device that is very easy to operate by unskilled and/or inexperienced persons. In case of fire or other emergency the source of electricity is generally disconnected. However, for operating this device there is no need of electricity or any other power supply. This mechanical device has been prepared for a person to descend on the ground safely in a controlled manner. Using this device a person can descend and land from 10^th floor of the building in around 20 second and from 50^th floor in around 100 seconds and from 100^th floor in around 200 seconds from any direction in a controlled manner. Further, every time after a person descends to ground the device can be re-used again with the same efficiency, since the wire rope of the device is rewindable without any overlapping, looseness or any other defect or deviation from proper rewinding.

SUMMARY OF THE INVENTION This device has its unique technique. There is a hook on the top side; under perilous condition, the hook of the top side is to be hung or fixed in handle to gallery, grill or window grill or rods or cupboards or doors. Two ring wheels on which a steel flexible cable wire rope is joined at the bottom end of the device are to be hung around shoulders and after tying the safety belt one has to jump down. The person moves towards the ground by two floors in every two seconds. Thus, this device can save lives of many people, such as in case of fire, terrorist attack, earthquake etc without waiting for external emergency service to arrive.

STATEMENT OF THE INVENTION

The invention provides a self-sufficient emergency life saving device for a building which can be operated without electricity or any other external power supply, the device comprising at least one steel flexible cable wire rope wound on a wire winding roller, to which rope a person to be rescued from the building by descending him in a controlled manner can be securely attached by a pair of handle rings and a belt; at least one means of obtaining reciprocating motion of a connecting rod with a between-rod-step, from the rotational motion of the wire winding roller; and at least one means of resistance to the reciprocating motion of the connecting rod, which device can be hooked to the building at an appropriate place, namely window or pillar or any other such place, with a hollow hinge provided on top of the body of the device, wherein retardation of the descending person is accomplished by obtaining a reciprocating motion from the rotational motion of the wire winding roller, the roller being driven by the load of the descending person, and introducing resistance to the reciprocating motion in order to control the speed of the descending person, through the at least one means of resistance, the resistance activating itself whenever an equilibrium position of the reciprocating motion is disturbed by the load of the descending person.

BRIEF DESCRIPTION OF THE DRAWINGS Referring to Drawing 1 and Drawing 2, the following is a description of the parts mentioned in the drawings according to their numbering:

[1] Belt

[2] Handle ring

[3] Flexible cable stainless steel wire rope which is capable of supporting at least 150 kilograms of escape cable wire rope ready to be used in cases of emergencies

[4] Wire winding roller

[5] Handle for rewinding wire

[6] First bevel gear connected to the handle for rewinding wire [7] Second bevel gear meshed with the first bevel gear [8] Free wheel designed to rotate anticlockwise [9] Second pressure spring

[10] Pressure paddle for rewinding the wire in correct line avoiding overlapping, loose winding, gaps in winding or any other unwanted irregularity [11] Chain and chain sprockets assembly

[12] Freewheel designed to rotate clockwise

[13] First pressure spring

[14] First spur gear set

[15] Second spur gear set connected with the first spur gear set [16] Eccentric wheel connected with the second spur gear set [17] Connecting rod connected with the eccentric wheel [18] Chamber-cylinder holding inside springs [19] First inside spring [20] Step between [21] Spring

[22]Threaded Road for Re-Winding Wire

[23] The device container

[24] Tension Spring DETAILED DESCRIPTION

The device has a container shown as fig. [23] in Drawing No. 1 as its outer body; on the top of the said body a hollow hinge is provided to hook the device to the building at an appropriate place namely window or pillar or any other such place. The user will be required to put a belt which is shown as fig, no [1] Belt and the double ring which is shown as fig, no [2] Handle Ring where the user is required to put his hand so that the whole body of the user will be fixed to the flexible cable wire rope of the said device fixed to the building. The flexible cable wire rope shown as fig no [3] in Drawing No. 1 is released as required and thus the user will be in a position to come down to the required place and safely reach the appropriate destination. The said wire rope is wound on a rope winding roller shown as fig no. [4] . The said roller is attached with a gear assembly which is shown as fig no. [14] and [15] in the Drawing and the said gear assembly gives motion to the eccentric wheel which is attached with the said gear assembly and the said eccentric wheel which is shown as fig no [16] is connected with a steel connecting rod shown as fig. No. [17]. The connecting rod gives motion or pressure on the spring shown as fig no [18] which is one of the twin springs, the other spring shown as fig. No. [19). Thus, the twin springs control the movement of the rope winding roller. There is a step between the connecting rod, which step is shown as fig no [20], and the two twin springs are placed on the two sides of the step. The movement of the steel connecting rod is controlled by these twin springs that is decide-pre setting of compressing strength of the spring diameter and wire of the spring this way the twin springs control the movement of steel connecting rod which is connected with the eccentric wheel. The eccentric wheel which is connected with spur gears, fig [14] and fig [15], which are connected with the wire roller on the other side through a freewheel designed to rotate clockwise, on which wire roller the steel rope is wound, and thus, the movement of the wire roller is controlled by the twin springs. Thus by controlling the movement of the wire roller the steel rope is released in safe speed and thus the person coming down on the ground lands safe without any. injury. The said device can be re-used for second person by rewinding the rope on the wire roller using the handle provided as shown in Drawing no. 1. As shown, the rope passes through troughs of two threaded rods, and there is a pressure paddle exerting pressure on the windings of the rope on the wire roller with the help of a tension spring, the threaded rods and the pressure paddle together ensuring rewinding of the wire rope on the wire roller in correct line without overlapping, looseness or any other defect or deviation from proper rewinding, when the rope is rewound on the wire roller by rotating the wire roller with a handle connected with the wire roller through a second pressure spring, a freewheel designed to rotate anticlockwise and a bevel gear pair. ; Thus, this device can be re-re-used again and again with the same efficiency and c can thus save many people's lives.

The free rotation: As mentioned above, shown as Fig [8] is a freewheel designed to rotate anti-clockwise and shown as fig [12] is a freewheel designed to rotate clockwise. When the rope goes down the handle will not rotate and when winding the wire on the wire roller the gear assembly will not rotate. This allows

s easy access to, and convenient operation of, escape from building, for ensuring, in cases of emergencies, safe and fast rescue of the building residents. The belts are capable of supporting at least 150 kilograms.

Claims

STATEMENT OF CLAIMS We claim :

1. A self-sufficient emergency life saving device for a building which can be operated without electricity or any other external power supply, the device comprising: i. at least one steel flexible cable wire rope wound on a wire winding roller, to which rope a person to be rescued from the building by descending him in a controlled manner can be securely attached by a pair of handle rings and a belt; ii. at least one means of obtaining reciprocating motion of a connecting rod with a between-rod-step, from the rotational motion of the wire winding roller; and iii. at least one means of resistance to the reciprocating motion of the connecting rod, which device can be hooked to the building at an appropriate place, namely window or pillar or a ny other such place, with a hollow hinge provided on top of the body of the device, wherein retardation of the descending person is accomplished by obtaining a reciprocating motion from the rotational motion of the wire winding roller, the roller being driven by the load of the descending person, and introducing resistance to the reciprocating motion in order to control the speed of the descending person, through the at least one means of resistance, the resistance activating itself whenever an equilibrium position of the reciprocating motion is disturbed by the load of the descending person.

2. The device of claim 1 wherein the at least one means of resistance comprises a pair of springs on either side of the between-rod-step of the connecting rod, which pair is enclosed in a chamber cylinder, the chamber cylinder being fixed with respect to the motion of the connecting rod.

The device of claim 1 or claim 2 wherein the at least one means of obtaining reciprocating motion comprises: a first spur gear set connected with and driven by the wire winding roller through a first pressure spring and a freewheel designed to rotate clockwise; a second spur gear set connected with and driven by the first spur gear set; and an eccentric wheel connected with and driven by the second spur gear set, the eccentric wheel driving the connecting rod connected therewith at a non-central location.

The device of any of the claims 1, 2 and 3 further comprising: a pair of threaded rod for rewinding wire, the wire rope passing through the troughs of the threads of the threaded rods and the pair being driven by the wire winding roller through chain and sprocket mechanism; a pressure paddle for rewinding wire in correct line, the paddle clasping tightly on the winds of the wire rope on the wire roller by the pressure exerted by a tension spring, the pair and the paddle together ensuring rewinding of the wire rope on the wire roller in correct line without overlapping, looseness or any other defect or deviation from proper rewinding, when the rope is rewound on the wire roller by rotating the wire roller with a handle connected with the wire roller through a second pressure spring, a freewheel designed to rotate anticlockwise and a bevel gear pair.

5. An apparatus substantially as hereinabove described in the specification with reference to the accompanying drawings.