Fire escape – ladder – or scaffold – Torso harness – Attached to strand wound on reel – and means for retarding...
Patent
1989-05-18
1991-10-29
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Torso harness
Attached to strand wound on reel, and means for retarding...
182239, 188 654, A62B 114
Patent
active
050607588
DESCRIPTION:
BRIEF SUMMARY
DESCRIPTION
1. Technical Field
The present invention relates to a device which enables a person safely descending from a high location, and particularly, to an emergency descending device for safely carrying a person out of a high stored building onto the ground in case of emergency such as fire and the like.
2. Background Art
It will sometimes be required to escape out of a window or the like of two or more stored building or to escape from a high level road in case of earthquake, fire and the like. An emergency descending device for a traveler is required to satisfy following items, namely, can be packed in a portable case; building for connecting one end of a rope of the descending device; in such case the device shall satisfy that (a) it can easily be connected to some object fixed to the building, (b) when the rope is connected to a movable object such as a desk or the like and the person starts to descend, then, the object may be caught by some obstacles such as a window frame or the like after moving some amount which abruptly stops the descending movement thereby causing a swoon of the descending person or cutting the rope, and accordingly, the device shall incorporate shock absorbing means for preventing aforesaid discrepancies; or a child can safely descend; kg weight can safely descend; edges on the window frame or the like; person without preventing the use of both hands of the descending person; directions; descend the person;
Similar characteristics are also required for use in a rescue operation of a rescue team. Particularly, it is important that the device is compact and light weight, and that the operation is automatic. For example, when a building is in fire and persons failed to escape ask for help through windows, the rescue team may carry a plural sets of the descending devices and deliver each set to each person so that the person can handle the device by himself and descend safely from the building. The rescue team may also descend lastly by utilizing respective descending devices for themselves. In such case, the devices for the rescue team are preferably of the type having a speed adjusting lever for selecting automatic or manual operation and stopping the descending movement in the manual operation with one's hands free whereby the rescue team can assist, by stopping the device of himself and by utilizing both hands, other person whose descending movement has been disturbed by some reasons such as a projecting portion of the building.
The inventor has disclosed in Japanese Patent Application 58-013595 a small sized and light weight device incorporating a speed adjusting lever which stops the device in hand free condition, and in Japanese Patent Applications 58-194695, 58-206778, 59-26469 and 60-230646 an automatic descending device with and without having a speed adjusting device and a stopping device. Further, in Japanese Patent Application 60-268089 a device permitting the movement of the rope in opposite directions which is advantageous in descending plural persons successively.
DISCLOSURE OF INVENTION
An emergency descending device usually consists of a main rope, a safety belt or body supporting means for connecting with a human body, a speed adjustor for adjusting the relative movement of the main rope, a connector for connecting the upper end of the main rope or the speed adjustor with a fixed support in the building such as a door, and a rope protector for protecting the main rope from damages caused by a sharp edge on the building or the like.
According to the present invention, the weight and the size of aforesaid elements are reduced, and particularly those of the speed adjustor are reduced. Prior art speed adjustor is of hydraulic braking type or centrifugal force braking type, and the speed adjustor of present invention belongs to centrifugal force braking type. The comparison between the speed adjustor of the invention and a prior art speed adjustor will now be explained. Both adjustors are common in that when the descending device is operating at a constant spe
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patent: 4662475 (1987-05-01), Rutschi
Daitoh Stainless Kaihsydu Center Co., Ltd.
Iida Machine Works Limited
Machado Reinaldo P.
TBR Corporation
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