KR101933198B1 - Cushion System for Elevator Crash - Google Patents

Abstract

The present invention provides an air mat filled with air at the bottom of a passageway of an elevator and an upper and a lower portion of an elevator. When an accident occurs in which an elevator falls or a person falls into an elevator passageway, A crash damping device for an elevator according to the present invention is provided on a floor of a passageway through which an elevator moves, A bottom air mat of flexible material in the form of a ring which is filled; And a lower air mat and an upper air mat, which are respectively formed on the outer side of the lower surface and the outer side of the upper surface of the elevator, and which are ring-shaped and filled with air.

Description

{Cushion System for Elevator Crash}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an apparatus for relieving an impact during a crash of an elevator, and more particularly to an apparatus for relieving an impact during a crash of an elevator, The present invention relates to a crash damping device for an elevator that can prevent an injury by buffering when an accident occurs.

As is well known, an elevator is a machine that moves a person or an object accurately to a desired floor while being moved up and down by a motor in a passage formed in the inside of the building. When a button installed inside the elevator is pressed, the elevator The motor installed on the upper part of the passageway is driven by the installed control part to move the elevator to the desired floor. When the door of the elevator is opened in the state where the door is formed in each floor where the elevator stops and the elevator is stopped, The door of the floor where the elevator is stopped is configured to be able to be mounted or lowered in the elevator while being opened together.

Such an elevator is provided with many safety devices in order to prevent a safety accident. For example, as disclosed in Registration Utility Model No. 20-0403780, an elastic member or a hydraulic device such as a spring is installed on the bottom surface of a passage through which the elevator is moved And a soft buffer member such as styrofoam or sponge is provided thereon, so that when the elevator or a person falls, a buffering action is performed to reduce the injury.

However, since such a conventional shock absorber can not provide a cushioning performance as high as expected, a considerable amount of the impact load is transmitted to an occupant in the elevator when a high-weight elevator falls, thus causing a problem of injury.

Registration Utility Model No. 20-0403780 Patent No. 10-1375390 Registration No. 10-0469967

SUMMARY OF THE INVENTION It is an object of the present invention to provide an air mat filled with air at the bottom of a passageway of an elevator and an upper portion and a lower portion of an elevator, The present invention provides a crash damping device for an elevator that can prevent an injury caused by an impact on a passenger or an accidental person by minimizing a shock absorbing action when an accident occurs.

According to an aspect of the present invention, there is provided a fall shock absorber of a lift, comprising: a bottom air mat on a floor of a passageway through which a lift moves; And a lower air mat and an upper air mat, which are respectively formed on the outer side of the lower surface and the outer side of the upper surface of the elevator, and which are ring-shaped and filled with air.

According to the present invention, an air mat, which is in the form of a ring, is installed on the floor of the elevator passageway and on the outside of the upper and lower sides of the elevator so as to buffer the elevator or a person when the person falls, so that the passenger in the elevator or the person .

FIG. 1 is a view illustrating a crash damping device of an elevator according to an embodiment of the present invention.
2 is a sectional view showing a lower air mat of the shock absorber shown in Fig.
Fig. 3 is a cross-sectional view showing the bottom air mat of the shock absorber shown in Fig. 1. Fig.
FIG. 4 is a view illustrating a crash damping device of an elevator according to another embodiment of the present invention.
FIG. 5 is a view illustrating a crash damping device of an elevator according to another embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a descent shock absorber according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1, a descending shock absorber of an elevator according to an embodiment of the present invention includes a floor air mat 10 installed on a floor of a passage 2 through which an elevator 1 moves, And a lower air mat (20) and an upper air mat (30) which are respectively installed outside the upper surface.

The floor air mat 10 has a square ring shape in which an opening 11 is formed at the center for securing a space in which a wire, a rope, a chain, etc. for elevating and lowering the elevator 1 can be installed, And is made of a flexible material that is filled with air, and functions to buffer the elevator 1 when the elevator 1 falls or a person falls. The material of the bottom air mat 10 is preferably sol-Tarpaulin.

The lower air mat (20) and the upper air mat (30) are provided outside the lower surface and the upper surface of the elevator (1) to perform a damping action. The lower air mats 20 and the upper air mats 30 are also formed with openings 21 and 31 at the center in order to secure a space in which wires, ropes, chains, and the like for raising and lowering the elevator 1 can be installed. And has a square ring shape. In addition, the lower air mat 20 and the upper air mat 30 are made of a flexible material such as Sol-Tarpaulin which is filled with air in order to provide buffering action.

Therefore, when the elevator 1 falls for some reason, the lower air mats 20 installed at the lower portion of the elevator 1 collide with the floor air mats 10. At this time, Since the air mat 10 is smoothly contracted and the buffering action occurs, the impact transmitted to the passenger in the elevator 1 can be greatly reduced, thereby preventing injury.

In addition, when a person falls into the passageway 2 from the upper side of the elevator 1, the person falls to the upper air mat 30 without bumping against the rigid upper surface of the elevator 1, so that a person is seriously injured .

On the other hand, since the elevator 1 is very heavy, even if the elevator 1 collides with the floor air mat 10, the elevator 1 can not be impacted at all. 2, in order to further reduce the impact applied to the elevator 1 during the fall of the elevator 1, the lower surface of the lower air mat 20 is provided with a liquid- A plurality of segment lines 24 relatively thinner than the portions having different thicknesses are provided in the upper and lower air mats 20 so as to mitigate the impact while being divided at the time of impact with the floor air mat 10 inside the lower air mat 20. [ It is possible to additionally provide a plurality of the segment members 23 arranged at intervals along the direction.

As the liquid in the liquid cushioning mat 22, water or the like can be used, and the shock absorbing effect is primarily absorbed at the time of impact, thereby further improving the buffering performance.

When the impact is applied from the lower side of the lower air mat 20, the segment members 23 are divided into relatively thinner segment lines 24 than the other portions of the lower air mat 20, thereby absorbing shocks twice, thereby doubling the shock absorbing performance.

Also, the bottom air mat (10) can be configured as a multi-cushion structure to further improve the cushioning performance. For example, as shown in Fig. 3, the bottom air mat 10 is placed on the bottom surface of the elevator pass 2, And an upper buffer layer 13 made of a wrinkled material stacked on the lower buffer layer 12. The upper buffer layer 13 has an air pressure smaller than that of the lower buffer layer 12, and the inner and outer surfaces of the upper buffer layer 13 are corrugated in a vertical direction. Therefore, when a large impact load is applied to the floor air mat 10 due to the fall of the elevator 1, the upper buffer layer 13, which is a corrugated material, contracts downward and primarily absorbs the impact, The relatively large lower buffer layer 12 is contracted to absorb the impact, so that a high impact load can be effectively absorbed.

It is a matter of course that the multiple cushioning structure of the floor air mat 10 effectively works even when a person falls, thereby preventing injury.

When the person is leaning or colliding with a door formed in the elevator passageway 2 and the elevator door is broken and falls, the floor air mat 10 of the passageway 2 or the upper air mat 30), a second damage may occur if the damaged door (3) or the structure falls to the person immediately after the person collides with the person.

4, a first pressure sensor (not shown) is additionally provided on the floor air mat 10 to detect an impact load applied to the floor air mat 10, A first auxiliary airbag 40 which swells abruptly is provided on one side of the elevator passageway 2 on the upper side of the mat 10 so that a person falls into the floor air mat 10 and the impact load measured by the first pressure sensor The first auxiliary air bag 40 is rapidly expanded to cover the upper side of the person on the floor air mat 10 to protect it from other falling objects.

The first auxiliary airbag (40) is configured to operate on the same principle as an airbag of an automobile.

5, a second pressure sensor (not shown) is further provided on the upper air mat 30 so that the upper air mat 30 (see FIG. 5) And a second auxiliary air bag 50 protruding outward through an opening at the center of the upper air mat 30 is installed at the center of the upper surface of the elevator 1, The second auxiliary air bag 50 is rapidly expanded when the impact load measured by the second pressure sensor (not shown) falls below a predetermined value (for example, 20 kgf / cm 2 or more) It is possible to cover the upper side of the person on the upper air mat 30 to protect the person from other falling objects.

As described above, according to the present invention, air mats in the form of a ring are provided on the floor of the elevator passageway (2) and on the outside of the upper and lower sides of the elevator, so as to perform buffering action when the elevator or a person falls. It is possible to protect people safely.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope of the present invention.

1: elevator 2: passage
3: Door 10: Floor Air Matt
12: lower buffer layer 13: upper buffer layer
20: lower air mat 22: liquid cushioning mat
23: segment member 24: segment member
30: upper air mat 40: first auxiliary air bag
50: Second auxiliary air bag

Claims (6)

A floor air mat (10) of a flexible material installed on the floor of a passage through which the elevator moves, and having a ring shape filled with air;
A lower air mat (20) and an upper air mat (30) which are respectively installed on the outer side of the lower surface and the outer side of the upper surface of the elevator and in the form of a ring filled with air;
A first pressure sensor installed on the floor air mat (10) and sensing an impact load applied to the floor air mat (10);
A first auxiliary airbag (40) installed at one side of the elevator passageway (2) above the floor air mat (10) and rapidly expanding when the impact load measured by the first pressure sensor is a predetermined value or more;
And a controller for controlling the operation of the elevator. The apparatus according to claim 1, wherein a liquid cushioning mat (22) filled with a liquid is stacked on the lower surface of the lower air mat (20). The air mattress according to claim 2, wherein a plurality of segment lines (24) relatively thinner than portions having different thicknesses are provided in the upper air mat (20) Wherein a segment member (23) is arranged at intervals along the longitudinal direction of the elevator. delete The air conditioner according to claim 1, further comprising: a second pressure sensor installed on the upper air mat (30) for sensing an impact load applied to the upper air mat (30) And a second auxiliary airbag (50) protruding outward through an opening in the center of the upper air mat (30) while rapidly expanding when the impact load measured by the second pressure sensor exceeds a predetermined value. Shock absorber. The air mattress according to claim 1, wherein the bottom air mat (10) comprises: a lower cushion layer (12) placed on the bottom surface of the elevator passage (2); And an upper buffer layer (13) stacked on the lower buffer layer (12) and having an air pressure smaller than that of the lower buffer layer (12) and having an inner side surface and an outer side surface corrugated vertically. Shock absorber.

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