KR102411097B1 - Emergency ladder - Google Patents

Abstract

The present invention relates to an emergency ladder installed on a wall surface such as a balcony of an apartment house to enable quick and safe evacuation between floors in the event of an emergency such as a fire, comprising: a fixed frame in the shape of a square frame fixed to the wall; a movable frame having a rectangular frame shape installed in front of the fixed frame; Two first side parts each having a quadrangular frame shape, each rear end of which is connected to both ends of the fixed frame so as to be folded and unfolded, and a plurality of first crossbars arranged vertically spaced apart from each other and installed so as to be able to tread frame; Each has a rectangular frame shape, and each front end is connected to both ends of the movable frame to be folded and unfolded, respectively, and each rear end is connected to the front end of each first side frame to be folded and unfolded, respectively, , Two second side frames having a plurality of second crossbars arranged to be vertically spaced apart from each other and installed on the inside; a first bottom frame having a rear end connected to the lower end of the fixed frame so as to be folded and unfolded; and a second floor frame having a front end connected to the lower end of the movable frame to be folded and unfolded, and a rear end connected to the front end of the first floor frame to be folded and unfolded. do.

Description

emergency ladder

The present invention relates to an emergency ladder, and more particularly, to an emergency ladder installed on a wall surface such as a balcony of an apartment house so that an emergency situation such as a fire can quickly and safely evacuate between floors.

As a technology related to the emergency ladder, the 'emergency evacuation ladder' (hereinafter referred to as 'prior art') of Republic of Korea Patent Publication No. 10-0738377 (registered on Jul. 5, 2007) has been proposed.

The prior art is "a multi-layer support that is fixed to the side wall of a building veranda and has a 'C'-shaped cross-section and guides the first detachable part through an open recess, and has a stopper at its end; accommodated in the recess a first detachable part caught on the stopper of the support when the first ladder housing is pulled out in an emergency; A ladder housing; and a second ladder housing accommodating two or more ladders connected to the first ladder housing through a second detachable part made of a bellows of a metal member; It is a technology related to an emergency evacuation ladder that has been prevented.

[Document 1] Republic of Korea Patent Publication No. 10-0738377 (registered on Jul. 5, 2007)

An object of the present invention is to provide an emergency ladder that is installed on a wall surface such as a balcony of an apartment house to enable quick and safe evacuation between floors in case of an emergency such as a fire.

The problems to be solved by the present invention are not limited to the aforementioned problems. Other technical problems not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the following description.

In order to solve the above problems, an emergency ladder according to an embodiment of the present invention includes a fixed frame of a rectangular frame shape fixed to a wall surface; a movable frame having a rectangular frame shape installed in front of the fixed frame; Two first side parts each having a quadrangular frame shape, each rear end of which is connected to both ends of the fixed frame so as to be folded and unfolded, and a plurality of first crossbars arranged vertically spaced apart from each other and installed so as to be able to tread frame; Each has a rectangular frame shape, and each front end is connected to both ends of the movable frame to be folded and unfolded, respectively, and each rear end is connected to the front end of each first side frame to be folded and unfolded, respectively, , Two second side frames having a plurality of second crossbars arranged to be vertically spaced apart from each other and installed on the inside; a first bottom frame having a rear end connected to a lower end of the fixed frame so as to be folded and unfolded; and a second floor frame having a front end connected to the lower end of the movable frame to be folded and unfolded, and a rear end connected to the front end of the first floor frame to be folded and unfolded.

In an embodiment of the present invention, the connecting portions of each frame connected to each other so as to be folded and unfolded adjacent to each other among the frames are connected by a piano hinge.

In an embodiment of the present invention, the first floor frame and the second floor frame are formed in a plate shape, and the first floor frame includes a first body having a first opening that is opened up and down, and opening and closing the first opening. and a first door, wherein the second bottom frame includes a second body having a second opening that is vertically open, and a second door that opens and closes the second opening, the first opening and the second The two openings are interconnected to form a single entrance, the first door and the second door are connected to each other to be folded and unfolded, and the front end of the second door is folded and unfolded to the second body. can be connected

In an embodiment of the present invention, a rotating shaft rotatably coupled to the fixed frame so as to cross the fixed frame from side to side; and two wires each having a lower end connected to both ends of the first floor frame, and each upper end extending upward along both ends of the fixed frame and respectively connected to both ends of the rotating shaft. As the two wires are wound on the rotating shaft by the rotation of the first floor frame connected to the lower ends of the two wires is pulled toward the fixed frame, so that each frame is folded.

In an embodiment of the present invention, a ratchet wheel is mounted on one end of the rotating shaft, and a pawl having an end caught on the ratchet wheel to prevent reverse rotation of the rotating shaft is rotatably mounted on the fixed frame.

In an embodiment of the present invention, a locking part protruding close to the ratchet wheel and pawl is formed on one side of the movable frame when each frame is folded, and an end of the pawl is hooked to the ratchet wheel on the pawl. Corresponding locking portion extending to the side to support the front of the locking portion is formed.

According to the emergency ladder according to the embodiment of the present invention, when an emergency situation such as fire occurs, after unfolding the emergency ladder, step on the first crossbar of the first side frame and the second crosspiece of the second side frame to move upstairs or downstairs. and safe evacuation between floors.

In addition, according to the emergency ladder according to the embodiment of the present invention, each frame is connected to be able to fold and unfold by a piano hinge, so that the gap between each frame can be minimized, and accordingly, the emergency ladder is stably and smoothly folded and It has the effect of being able to unfold.

In addition, according to the emergency ladder according to the embodiment of the present invention, since each floor frame includes a body and a door, there is an effect that each floor frame can be used as both a footrest and an entrance.

In addition, according to the emergency ladder according to the embodiment of the present invention, the folding and unfolding operation of the emergency ladder is made by winding or unwinding the wire by rotating the rotating shaft, so that the emergency ladder can be folded or unfolded easily and safely, and each floor Since the frame is supported by the wire, the angle formed by each floor frame can be flattened, so that safety can be improved.

1 is a perspective view showing a folded state of the emergency ladder according to an embodiment of the present invention.
Figure 2 is a perspective view showing the unfolding state of the emergency ladder according to an embodiment of the present invention.
Figure 3 is a side view showing the unfolding state of the emergency ladder according to an embodiment of the present invention.
Figure 4 is a side cross-sectional view of the first floor frame and the second floor frame in the emergency ladder according to an embodiment of the present invention.
Figure 5 is a plan cross-sectional view showing the folded state of the emergency ladder according to an embodiment of the present invention.
Figure 6 is a side view showing the folded state of the emergency ladder according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. For convenience of description, components shown in the drawings may be exaggerated, omitted, or schematically represented.

Figure 1 is a perspective view showing the folded state of the emergency ladder according to an embodiment of the present invention, Figure 2 is a perspective view showing the unfolded state of the emergency ladder according to the embodiment of the present invention, Figure 3 is according to the embodiment of the present invention It is a side view showing the unfolding state of the emergency ladder, Figure 4 is a side cross-sectional view of the first floor frame and the second floor frame in the emergency ladder according to an embodiment of the present invention, Figure 5 is an emergency ladder according to an embodiment of the present invention It is a plan sectional view showing the folded state of

1 to 5, the emergency ladder according to an embodiment of the present invention is largely a fixed frame 100, a movable frame 200, a first side frame 300, a second side frame 400, A first floor frame 500 , a second floor frame 600 , a piano hinge 700 , a rotating shaft 800 and a wire 900 are included.

The fixed frame 100 is formed in a rectangular frame shape and is installed on a wall surface such as a balcony of an apartment house.

The fixing frame 100 may be fixed to the wall surface by the bracket 110 coupled to the upper and lower surfaces or side surfaces thereof.

The movable frame 200 is formed in a rectangular frame shape having the same or similar structure to the fixed frame 100 and is installed in front of the fixed frame 100 .

The first side frame 300 is provided in two, each of which is formed in a rectangular frame shape, and each rear end is connected to both ends of the fixed frame 100 so as to be able to fold and unfold, respectively.

And the second side frame 400 is provided with two, each of which is formed in a rectangular frame shape so that the front end of each is connected to both ends of the movable frame 200 so as to be folded and unfolded, respectively, and the rear end of each is connected to the It is connected to the front end of each of the first side frames 300 to be able to fold and unfold, respectively.

A plurality of first crossbars 310 arranged to be vertically spaced apart are installed inside each of the first side frames 300 , and a plurality of first cross bars 310 arranged to be vertically spaced apart from each other are installed inside each of the second side frames 400 . A second crossbar 410 is installed.

At this time, the first cross bar 310 and the second cross bar 410 are installed so that the user can step on it. Accordingly, in the event of an emergency such as a fire, the user can quickly and safely evacuate between floors by unfolding the emergency ladder and then stepping on the first and second cross bars 310 and 410 to move to the upper or lower floors.

The rear end of the first bottom frame 500 is connected to the lower end of the fixed frame 100 so as to be folded and unfolded.

In addition, the front end of the second floor frame 600 is connected to the lower end of the movable frame 200 to be folded and unfolded, and the rear end can be folded and unfolded to the front end of the first floor frame 500 . to be connected

The first floor frame 500 and the second floor frame 600 are formed in a plate shape as shown in Figs. ), and a first door 520 for opening and closing the first opening 511, and the second bottom frame 600 has a second opening 611 opened up and down. ) having a second body 620 and a second door 620 for opening and closing the second opening 611 .

And as shown in FIG. 4 , the first opening 511 and the second opening 611 are interconnected to form a single entrance, and the first door 520 and the second door 620 are mutually folded. and an unfolding operation, and a front end of the second door 620 is connected to the second body 620 to be folded and unfolded. At this time. The second door 620 is connected to be folded while rotating upward of the second body 620 , and the first door 520 is connected to be folded while rotating downward from the second door 620 .

According to the structure as described above, the first floor frame 500 and the second floor frame 600 can be used as a footrest in the unfolded state, and the first door 520 and the second door 620 are folded. In the above, the first body 510 and the second body 610 are used as footrests, and the first floor frame 500 and the second floor frame 600 are passed through the first opening 511 and the second opening 611. ) can be passed through.

The piano hinge (piano hinge, 700) is also referred to as a long hinge or a continuous hinge, and consists of a hinge that extends longer than a general hinge.

The piano hinge 700 is provided in plurality and is installed for each connection part of each frame. That is, among the frames, the connecting portions of each frame that are adjacent to each other and connected so as to be folded and unfolded are connected to each other so that they can be folded and unfolded by the piano hinge 700 .

According to the connection structure of each frame using the piano hinge 700 as described above, the gap between each frame can be minimized, and accordingly, the emergency ladder can be stably and smoothly folded and unfolded.

The rotating shaft 800 is rotatably coupled to the fixed frame 100 so as to cross the fixed frame 100 from side to side.

The rotating shaft 800 is arranged to be positioned at an intermediate point with respect to the height of the fixed frame 100 so that the user can easily operate it.

As shown in FIGS. 2 and 3, two wires 900 are provided, each of which has a lower end connected to both ends of the first floor frame 500, and each upper end of the fixed frame 100. It extends upward along both ends of the and is respectively connected to both ends of the rotation shaft 800 .

Each wire 900 is installed so that each upper end is fixed to both ends of the rotation shaft 800 , respectively, so as to be wound or unwound at both ends of the rotation shaft 800 by the rotation of the rotation shaft 800 .

Each of the wires 900 is preferably installed to pass through the inside of the pipe constituting both sides of the fixed frame 100 so that the portion exposed to the outside is minimized. In addition, a tube surrounding the wire may be mounted on the fixed frame 100 so that the wire 900 can be stably wound or unwound.

According to the rotating shaft 800 and the wire 900 configured as described above, the first floor frame connected to the lower ends of the two wires 900 while the two wires 900 are wound around the rotating shaft 800 by the rotation of the rotating shaft 800 . As the 500 is pulled toward the fixed frame 100, the emergency ladder of the present invention is folded as shown in FIGS. 1 and 5 .

The rotating shaft 800 is installed to be rotated or fixed as needed by a ratchet method. That is, as shown in FIGS. 2 and 3 , a ratchet wheel 1000 is mounted on one end of the rotation shaft 800 , and the end of the fixed frame 100 is caught by the ratchet wheel 1000 . A pawl 1100 for preventing the reverse rotation of the rotation shaft 800 is rotatably mounted.

Here, the 'reverse rotation' refers to a direction in which the rotating shaft 800 is rotated so that the wire 900 wound around the rotating shaft 800 is unwound.

A lever 1130 is formed on the pawl 1100 . Accordingly, the pawl 1100 is configured to catch the end of the pawl 1100 by the ratchet wheel 1000 or to separate it from the ratchet wheel 1000 by holding and rotating the lever 1130 .

And a tool insertion part 1200 is formed on the front surface of the ratchet wheel 1000 . The tool insertion part 1200 is configured to rotate the rotation shaft 800 using the tool as it is formed to be engaged with a tool such as a wrench or a spanner.

As a result, in an emergency, the user rotates the pawl 1100 to release the fixing of the ratchet wheel 1000 so that the wire 900 is released, so that the emergency ladder can be safely and easily unfolded. And when you want to fold the emergency ladder again, rotate the pole 1100 to rotate the rotary shaft 800 in a state in which the ratchet wheel 1000 is fixed so that it cannot be rotated in the reverse direction, and the wire 900 is rewound by rewinding the emergency ladder. It can be folded safely and easily.

In addition, according to the emergency ladder of the present invention configured as described above, each floor frame 500, 600 is supported by the wire 900, so that the angle formed by each floor frame 500, 600 can be flattened. Safety can be improved. That is, even if each floor frame 500, 600 is installed flat, the wire 900 can support the floor frame 500 and 600 to stably support the user's weight, and the user does not slip due to the inclined floor. can prevent accidents.

Hereinafter, another embodiment of the present invention will be described with further reference to FIG. 6 , the same reference numerals are assigned to the same components as in the above-described embodiment, and repeated description thereof will be omitted.

Figure 6 is a side view showing the folded state of the emergency ladder according to another embodiment of the present invention.

As shown in FIG. 6 , on one side of the movable frame 200, a locking part 1300 that comes close to the ratchet wheel 1000 and the pawl 1100 when each frame is folded is formed to protrude, and the pawl A corresponding locking part 1110 is formed in 1100 to prevent the locking part 1300 from moving forward by being caught by the locking part 1300 .

Here, the corresponding locking part 1110 is formed to support the front of the locking part 1300 by extending toward the locking part 1300 in a state where the end of the pawl 1100 is caught on the ratchet wheel 1000 . And when the pawl 1100 is rotated to retreat from the ratchet wheel 1000 , the corresponding engaging portion 1110 also retreats from the engaging portion 1300 .

According to the above configuration, the load applied to the wire 900 can be reduced by the corresponding locking part 1110 supporting the front of the locking part 1300 in the emergency ladder folded state, and the emergency ladder is folded. The state can be kept more stable.

In addition, an inclined surface 1120 in contact with the engaging part 1300 may be formed in front of the corresponding engaging part 1110 . The inclined surface 1120 is in contact with the locking part 1300 just before the folding operation of the emergency ladder is completed, that is, when the movable frame 200 is almost close to the fixed frame 100, and the corresponding locking part 1110. will push up And when the folding of the emergency ladder is completed, the locking part 1300 passes through the inclined surface 1120 and is disposed at the rear of the corresponding locking part 1110, so that the corresponding locking part 1110 comes down and the front of the locking part 1300. will support According to this structure, the corresponding locking part 1110 can be arranged so that the corresponding locking part 1110 supports the locking part 1300 without separately manipulating the pole 1100 when the emergency ladder is to be folded. .

In the foregoing, the present invention has been described with reference to limited embodiments and drawings, but it will be apparent to those skilled in the art that various modifications are possible within the scope of the technical idea of the present invention. Accordingly, the protection scope of the present invention should be defined by the description of the claims and their equivalents.

100: fixed frame 110: bracket
200: movable frame 300: first side frame
310: first crosspiece 400: second side frame
410: second crossbar 500: first floor frame
510: first body 511: first opening
520: first door 600: second floor frame
610: second body 611: second opening
620: second door 700: piano hinge
800: axis of rotation 900: wire
1000: ratchet wheel 1100: pawl
1110: corresponding locking part 1120: inclined surface
1130: lever 1200: tool insertion part
1300: locking part

Claims (6)

A fixed frame 100 in the shape of a square frame fixed to the wall;
a movable frame 200 having a rectangular frame shape installed in front of the fixed frame 100;
A plurality of first crossbars 310 each formed in the shape of a rectangular frame and each rear end is connected to both ends of the fixed frame 100 so that it can be folded and unfolded, and arranged to be vertically spaced on the inside to be able to tread Two first side frames 300 having a;
Each has a rectangular frame shape, and each front end is connected to both ends of the movable frame 200 to be folded and unfolded, respectively, and each rear end is folded and unfolded to the front end of each of the first side frames 300 , respectively Two second side frames 400 that are operatively connected, and have a plurality of second crossbars 410 that are arranged to be spaced apart from each other and installed on the inside;
a first bottom frame 500 having a rear end connected to the lower end of the fixed frame 100 so as to be folded and unfolded;
a second floor frame 600 having a front end connected to the lower end of the movable frame 200 to be folded and unfolded, and a rear end connected to the front end of the first floor frame 500 to be folded and unfolded;
a rotating shaft 800 rotatably coupled to the fixed frame 100 so as to cross the fixed frame 100 from side to side; and
Each lower end is respectively connected to both ends of the first floor frame 500, and each upper end extends upward along both ends of the fixed frame 100 and is connected to both ends of the rotating shaft 800. Two wires ( 900); including;
As the two wires 900 are wound around the rotary shaft 800 by the rotation of the rotary shaft 800 , the first floor frame 500 connected to the lower ends of the two wires 900 is pulled toward the fixed frame 100 . Emergency ladder, characterized in that each frame is folded by being.
According to claim 1,
An emergency ladder, characterized in that the connecting portion of each frame connected to each other adjacent to each other to be able to fold and unfold among the frames is connected by a piano hinge (700).
According to claim 1,
The first floor frame 500 and the second floor frame 600 are formed in a plate shape,
The first floor frame 500 includes a first body 510 having a first opening 511 that is opened up and down, and a first door 520 that opens and closes the first opening 511,
The second floor frame 600 includes a second body 620 having a second opening 611 open up and down, and a second door 620 for opening and closing the second opening 611,
The first opening 511 and the second opening 611 are interconnected to form a single entrance,
The first door 520 and the second door 620 are connected to each other so that folding and unfolding operations are possible,
The front end of the second door (620) is an emergency ladder, characterized in that it is connected to the second body (620) to be folded and unfolded.
According to claim 1,
A ratchet wheel 1000 is mounted on one end of the rotation shaft 800,
Emergency ladder, characterized in that the fixed frame (100) is rotatably mounted to the end of the pole (1100) for preventing the reverse rotation of the rotating shaft (800) caught on the ratchet wheel (1000).
5. The method of claim 4,
At one side of the movable frame 200, a locking part 1300 that comes close to the ratchet wheel 1000 and the pawl 1100 when each frame is folded is formed to protrude,
The pawl 1100 has a corresponding engaging portion 1110 extending toward the engaging portion 1300 in a state in which the end of the pawl 1100 is caught on the ratchet wheel 1000 to support the front of the engaging portion 1300. Emergency ladder, characterized in that formed.
delete

Images