JP3551257B2 - Evacuation ladder - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
INDUSTRIAL APPLICABILITY The present invention is used to evacuate downstairs or upstairs from an evacuation hatch formed on the floor of a veranda or the like of a high-rise house in an emergency, or to evacuate each floor to the ground by installing it on the outer wall surface of a building. It relates to an evacuation ladder.
[0002]
[Prior art]
Conventionally, an evacuation hatch is provided on the floor of a veranda or the like of a high-rise house, so that an emergency evacuation can be performed from the hatch downstairs or upstairs to a nearby wall corresponding to the hatch. In many cases, a step is provided or a rope ladder is prepared near the hatch.
[0003]
[Problems to be solved by the invention]
However, the emergency step provided on the wall corresponding to the evacuation hatch as described above is to bend a metal wire of an appropriate thickness into a U-shape and fix both ends of the wire to the wall. For example, if you open the hatch and evacuate downstairs, if you move from hatch to the step below the hatch, if the foot on the step slides sideways, the foot will easily come off the step In particular, children and women and girls may feel terrified and become unable to move, and may not be able to take evacuation behavior, which is extremely difficult to use. In addition, in the case of a rope ladder, when you move from a hatch to a rope ladder suspended below the hatch, the rope ladder swings when you apply weight, so here you can also feel terrified and can not move and can not take evacuation behavior, It is more difficult to use than steps.
[0004]
Therefore, an object of the present invention is to provide a predetermined gap between a wall and a wall in a state of being firmly fixed to a wall when used in an emergency, and to be used like a general-purpose ladder. An object of the present invention is to provide an evacuation ladder that can be reduced in form and stored in a state of being attached to a wall surface, and does not hinder the existence of an evacuation ladder, and is convenient for handling.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the evacuation ladder according to the present invention includes a ladder main body, an inner backing plate, and fixing means, and the ladder main body has a first column and a second column parallel to the left and right, A plurality of steps, the fixing means having a support member attached to the wall surface so as to protrude forward from the wall surface, and a locking portion provided on the second support, Ends of the plurality of steps are rotatably connected in an up-down direction with respect to one support and the second support, whereby the plurality of steps are provided between the first support and the second support. The first support is attached to the wall surface via an up / down support rod, and the base end of the up / down support rod is pivotally attached to the wall surface so that the up / down support rod can fall forward. The first support is pivotally attached to a tip of an up-and-down support rod, and the lower end of the first support has a predetermined height from the floor when the up-and-down support rod stands. Can be in a first state in which it floats only and comes into contact with the wall surface, and the first column takes a second state in which the first support column is separated from the wall surface by a predetermined distance forward when the undulating support rod falls forward. When the plurality of steps are erected such that the second strut-side end is higher than the first strut-side end, the second strut is joined to the first strut. The second strut may be separated from the first strut when the first strut-side end and the second strut-side end of the plurality of steps are substantially at the same height. The ladder body can be placed in a stowed position where the first strut assumes a first state and the second strut assumes a first state, the ladder body includes: The first strut can be placed in a use position where the first strut assumes a second state and the second strut assumes a second state, and the inner backing plate is secured to the wall surface. Attached to the inner support plate, and the inner backing plate extends forward from the wall by a length that reaches the side of the second support opposite to the first support when the ladder body is placed in the storage position. Projecting, the inner backing plate abuts against the side surface of the second post when the ladder body is placed in the storage position so that the second post does not separate from the first post, Maintaining the second post in the first state and moving the first post of the ladder body in the stowed position forward from the wall to move the first post from the first state to the second state. And moving the second support from the first state to the second state by separating the second strut from the inner backing plate, and finally placing the ladder main body in the use position. The locking portion of the fixing means is locked to the support member of the fixing means when the device is placed in the use position. Thereby, the ladder main body is fixed at the use position .
[0006]
Here, the ladder main body is made of a metal such as an aluminum alloy. Both struts of the ladder main body are composed of a U-shaped cross section, both struts have the opening sides of the concave portions facing each other, and a plurality of steps are arranged at a fixed interval between both struts. Then, the end of each step is pivotally attached to the column so as to be rotatable only in the vertical direction with a pivot. When the ladder body is in the stowed position, both struts are joined and the step fits into the recess, and the back surfaces of both struts are attached to the wall . Then, the inner support plate supports the second support from the side, and the ladder main body is held at the storage position.
[0007]
When the ladder body is in the stowed position, the lower ends of both struts rise from the floor, so hold the ladder body in the stowed position by fitting an appropriate contact member between the lower end of one of the struts and the floor. By doing so, the ladder main body is kept in the storage position without inadvertently separating the ladder main body from the wall surface.
[0008]
According to the evacuation ladder of the present invention configured as described above, when using the evacuation ladder, when the operation of both pillars that are in the storage position and rise from the floor surface are operated so as to be free, As the ladder body descends with its weight, it separates from the wall surface, the undulating support rod falls down forward and both columns move forward together, and the lower end of the first column first contacts the floor surface. The movement of the first support stops. At the same time, since the second strut out of the inner contact plate, the second strut is deployed inside caul side descends moving relative to the first support column in its weight, the second strut lower end on the floor The abutment stops the movement of the second support. Locking portion of the second strut during this time, contact with the support member constituting the fixing means, the second strut is engaged the locking portion to the supporting member is fixed.
[0009]
In this way, the ladder main body is deployed to the use position, and the first support and the second support are automatically fixed to the wall surface with the lower ends abutting on the floor. In addition, gaps are formed at predetermined intervals between the wall surfaces. Therefore, when climbing up and down the ladder body, the toe of the foot hung on the step does not hit the wall, and it can be used safely like a general-purpose ladder without fear of children or women and girls. You can take evacuation actions.
[0010]
Further, when the up-and-down support rod is provided at a position near the upper and lower ends of the first support and the fixing means is provided at positions near the upper and lower ends of the second support , the ladder main body is deployed to the use position . In doing so, the ladder body always descends parallel to the wall under gravity, and does not support the deployment of the ladder body, especially without using the power of an external person. Since the lower end is brought into contact with the floor surface and finally a predetermined gap is formed between the wall surfaces and fixed in an upright posture, emergency handling in an emergency is more convenient.
[0011]
In addition, when the second support is lowered by its weight with respect to the first support connected to the undulating support rod, and expands laterally in parallel with the wall surface, the support is fixed to the fixing means by impact. In order to prevent the lower end of the strut from abutting against the floor surface , the spring exerts an upward spring force on the inner surface of the first strut within the first strut and below a specific step. The base of the band-shaped spring piece is fixed, and the tip of the spring piece is introduced into the step from the step end against the spring force, so that the second support rises with respect to the first support. When the configuration in which the specific step is rotationally biased is adopted , the rotation of the step as the second support expands laterally with respect to the first support is rotated upward by the band-shaped spring piece. As it is performed against the biased spring force, it realizes smooth and safe deployment without shocking deployment, and it is easy to handle the evacuation ladder To.
[0012]
Further, the undulating support rod base is pivotally attached to a fixed supporting rod protruding from an attachment plate attached to the wall surface, and the lower end edge of the fixed supporting rod restricts rotation of the undulating supporting rod. When the supporting seat is horizontally protruded, the undulating support rod falls down forward and the lower end of the first support comes into contact with the floor, and at the same time, the undulating support rod is received by the receiving seat of the fixed supporting rod, and the undulating support rod is supported. Since the rod is held at the end point of rotation, the first pillar is also fixed firmly without fluctuation on the wall, like the second pillar fixed by the fixing means between the walls, and the ladder body is fixed. Make it easier to use.
[0013]
Furthermore, an outer backing plate is provided, and when the ladder main body is in the storage position, the first and second struts to be joined to each other when the ladder main body is in the storage position are provided on the inner side. The ladder main body may be held between the backing plate and the outer backing plate in the storage position.
[0014]
In the evacuation ladder according to the present invention, for example, a ladder main body can be installed in a connected manner on an outer wall surface of a building such as a high-rise house, with each floor as a unit. In this case, when a plurality of ladder main bodies for each floor are arranged in series, and a connecting tool is detachably attached to a butt end of a vertically continuous strut and the strut is connected to each other, When evacuating from the floor, release the ladder body corresponding to the top floor held at the storage position, and all the ladder bodies corresponding to each lower floor connected to the ladder body corresponding to this top floor will be It can be deployed simultaneously and safely evacuated to the ground from all floors including the top floor.
[0015]
Also, when evacuating from each floor below the top floor, pull out the connecting tool that connects the ladder main body corresponding to the floor and the butting end of the column that is continuous above and below the ladder main body corresponding to the upper floor. The ladder body in the connected state is divided in the middle, and the ladder body corresponding to the upper floor is left as it is, all the ladder bodies corresponding to the lower floors are unified simultaneously and it is safe from each floor to the ground Can be evacuated.
[0016]
In addition, when the evacuation ladder according to the present invention is not used, that is, in normal times, the up-and-down support rod stands up, and the first support and the second support are joined to reduce the form, and both support back surfaces are used. Is held in the storage position in contact with the wall surface, so that the presence of the evacuation ladder does not interfere. In addition, in both columns in the joined state at the retracted position, the step is also almost upright, and the spring piece having the tip introduced into the specific step also adopts the extension form in which the spring force is released. In addition, the spring force does not weaken over time, and there is no change in performance even if it is not used for a long time, and the stability is excellent.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an example of an embodiment of the present invention will be described with reference to the drawings.
[0018]
FIG. 1 is a perspective view showing a state in which a ladder main body of the evacuation ladder according to the present invention is expanded, and FIG. 2 is a perspective view showing a storage state of the evacuation ladder according to the present invention.
[0019]
In each of the figures, a ladder main body 1 is made of a metal such as an aluminum alloy, and a pair of parallel left and right columns 2 and 3 of the ladder main body 1 are formed of a U-shaped cross section and the opening side of a concave portion 4 thereof. Are opposed to each other, a plurality of steps 5 are arranged at regular intervals between the two columns 2, 3, and the ends of the steps 5 are pivotally connected to each other only in the vertical direction by the pivot 6 so as to be pivotable. I have.
[0020]
The ladder main body 1 is arranged in parallel to the wall A (see FIG. 3), and two places near one of the upper and lower ends of one of the columns 2 of the ladder main body 1 are moved toward and away from the wall A via the up-and-down supporting rods 7. It is movably connected. In the embodiment, the base of the undulating support rod 7 is pivotally attached to a fixed support rod 7a protruding from an attachment plate 8 attached to the wall A with an anchor bolt or the like. The tip of 7 is connected to the side surface of the column 2 by a pivot 9 so that the up-and-down support rod 7 rotates between a substantially upright position and a substantially horizontal position with respect to the fixed support rod 7a.
[0021]
Between the other support 3 of the ladder main body 1 and the wall A, there are provided fixing means 10 for fixing two places near the upper and lower ends of the support 3 to the wall A in a state where the ladder main body 1 is deployed at the use position. In the embodiment, as the fixing means 10, a support member 11 extending at right angles from the wall surface A and having a locking recess 13 provided upward at the tip end, and a downwardly provided supporting surface corresponding to the locking recess 13 provided on the side surface of the column 3 is provided. An attachment plate 14 is formed integrally with a hook-shaped locking rod 12 and attached to a wall A with an anchor bolt or the like at the base of the support member 11. Then, the ladder main body 1 is unfolded at the use position, and the column 3 abuts on the inner surface side of the support member 11. In this state, the locking rod 12 is locked in the locking recess 13 of the support member 11 to fix the column 3. I am trying to do it.
[0022]
Also, when the two supports 2 and 3 of the ladder main body 1 are joined and the ladder main body 1 is in the retracted position, in order to maintain the joined state of the two supports 2 and 3, the two struts 2 and 3 are straddled. A fastener 15 is provided. In the embodiment, the fastener 15 includes a movable plate 16 provided on the front surface of the column 3 so as to be able to move up and down, and a fastener 18 protruding from the front surface of the column 2 corresponding to the movable plate 16. In a state where both the columns 2 and 3 are joined, the movable plate 16 is turned down, and the retaining piece 18 is inserted into a retaining hole 17 provided in the movable plate 16 to bring the both columns 2 and 3 into the joined state. I try to keep it.
[0023]
Next, the use of the evacuation ladder having the above configuration will be described with reference to FIG.
[0024]
In the evacuation ladder according to the present invention, when the ladder main body 1 is in the retracted state during normal times, as shown in FIG. 3 (a), both the columns 2, 3 are maintained in the joined state, and the back surface is attached to the wall surface. The lower ends of both columns 2 and 3 are in contact with each other and float from the floor B. Then, in order to hold the ladder main body 1 in the storage position, an appropriate contact member C is inserted between the lower end of the support 2 having a small floating amount from the floor B and the floor B, and the ladder main body 1 is inadvertently developed. Keep it away.
[0025]
In the event of evacuation using an evacuation ladder in an emergency, when the contact member C inserted between the lower end of the column 2 and the floor surface B is removed, the ladder main body 1 descends with its weight, and this descending As a result, the undulating support rod 7 that supports the ladder main body 1 falls down forward, the ladder main body 1 separates from the wall surface A, and the lower end of the column 2 abuts on the floor surface B, where the movement of the ladder main body 1 stops once. Therefore, when the fastener 15 for maintaining the joined state of the two columns 2 and 3 is removed, the column 3 in the floating state from the floor surface C descends with its weight and expands to the side, and the outer surface of the column 3 The locking rod 12 is locked in the locking recess 13 of the support member 11 when it comes into contact with the inner surface side of the support member 11, and the column 3 is fixed as shown in FIG. In this manner, both the columns 2 and 3 are fixed to the use position with respect to the wall surface A and can move up and down like a general-purpose ladder, and can perform an evacuation action without feeling fear.
[0026]
In the above-described configuration, the lateral extension of the column 3 with respect to the column 2 is performed by removing the fastener 15 that maintains the joined state of the columns 2 and 3, and the column 3 in a floating state from the floor C is weighted by its weight. Since the support 3 descends and expands to the side, the outer surface of the support 3 eventually contacts the inner surface of the support member 11, the lower end of the support 3 contacts the floor B, and the locking rod 12 supports There is a possibility that the operation of locking the locking concave portion 13 of the member 11 may be performed by shock. Therefore, as shown in FIGS. 4 and 5, the base of a band-shaped spring piece 19 that exerts an upward spring force is fixed to the inner surface of the support pillar 2 below the specific step 5 in the support pillar 2, When the tip 19a is introduced into the step 5 from the end of the step against the spring force and is urged upward to rotate, the column 3 expands laterally with respect to the column 2. The downward rotation of the step 5 is performed against the spring force of lifting the step 5 upward by the band-shaped spring piece 19, so that the support column 3 is not deployed in a shocking manner, and the time is appropriate. To facilitate safe deployment and smooth handling of the evacuation ladder.
[0027]
Further, in the above configuration, when the ladder main body 1 is in the retracted position, the up-and-down supporting rod 7 that connects the column 2 to the wall A so as to be able to move toward and away from the wall A is in an almost upright position with respect to the fixed supporting rod 7a. When the ladder main body 1 is deployed, the ladder main body 1 assumes a substantially horizontal position. Therefore, as shown in FIG. 6 and FIG. When the receiving seat 7b for receiving the support rod 7 in a horizontal position and restricting the rotation is protrudingly provided, when the ladder main body 1 is deployed at the use position and the undulating support rod 7 falls down, this is the fixed support rod 7a. The support rod 7 is received by the receiving seat 7b to stabilize the undulating support rod 7 at the end point of rotation, so that the support 2 is also fixed by the support member 11 extending directly from the mounting plate 14 mounted on the wall A. As in the above, there was no fluctuation on the wall A Ease of use of the ladder body 1 to expand it serves as a constant.
[0028]
Further, in the above configuration, when the ladder main body 1 is at the storage position, as shown in FIGS. 6 and 7, corresponding to the fastener 15 provided for maintaining the joined state of the two columns 2 and 3, When the ladder main body 1 is in the storage position, a holding member 20 that holds both the columns 2 and 3 between the facing backing plates 21 and 22 and holds the ladder main body 1 in the storage position can be provided. The holding member 20 according to the embodiment is formed of a single plate body, and the two supporting columns 2 and 3 in the joined state are provided on both sides of the attaching plate portion 23 attached to the wall A with anchor bolts or the like. The inner caul plate 21 and the outer caul plate 22 are bent at right angles so as to face each other. The height is set to be substantially the same as the side surface, and the height of the outer reliance plate 22 is set to a height that can be applied to the corresponding side surface of the column 2 when the ladder main body 1 is deployed at the use position. Further, in a state in which both the pillars 2 and 3 are housed, a through hole 24 is provided in the outer backing plate 22 and a side surface of the corresponding pillar 2, and a fixing pin 25 is inserted into the through hole 24 to insert the ladder main body 1. Is stored in the storage position.
[0029]
When the holding member 20 and the fixing pin 25 are combined in this manner, the deployment of the ladder main body 1 from the storage position can be achieved only by pulling out the fixing pin 25, and the two columns 2 and 3 in the joined state can be combined by their weights. When the support 3 on the deployed side separates from the wall A and moves away from the inner contact plate 21 (extracts), the support 3 is deployed to the side of the contact plate 21 and the outer surface of the support 3 is supported by the support member. The locking rod 12 abuts on the inner surface side of the support 11 and locks into the locking recess 13 of the support member 11 to fix the support 3 for use. At this time, the backing plate 22 on the outside of the holding member 20 is pressed against the outer side surface of the column 2 at the use position to prevent the column 2 from running out.
[0030]
In addition, if the method of holding the ladder main body 1 in the storage position by the holding member 20 is adopted, the evacuation ladder according to the present invention can be effectively installed on the outer wall surface of a building such as a high-rise house. In this case, a plurality of ladder main bodies 1 in units of each floor are arranged in series, and as shown in FIG. 8, the connecting tool 26 is attached to and detached from the butting ends of the up and down columns (only one column 2 is necessary). Attach freely to connect the columns. The connector 26 of the embodiment has a pair of fixing pins 28 protruding in parallel with the main body 27, and the pair of fixing pins 28 are provided at the butting ends of the up-and-down columns 2. The columns are simultaneously inserted into the holes 29 to connect the columns.
[0031]
Then, only the ladder main body 1 corresponding to the top floor is held by the holding member 20 at the storage position. That is, the fixing pin 25 is inserted into the through-hole 24 provided on the side of the supporting plate 2 corresponding to the outer side of the holding member 20, and the ladder main body 1 is held in the storage position. Regarding the holding member 20 attached to the ladder main body 1 corresponding to each floor below, the holding of the ladder main body 1 by the fixing pin 25 is not performed.
[0032]
Thus, when evacuating from the top floor, the fixing pin 25 is pulled out from the holding member 20, and when the holding of the ladder main body 1 corresponding to the top floor to the holding member 20 is released, the lower pin connected to the ladder main body 1 corresponding to the top floor is released. All the ladder main bodies 1 corresponding to the respective floors can be simultaneously deployed and used simultaneously. Thus, evacuation from all floors including the top floor to the ground can be safely performed.
[0033]
Also, when evacuating from each floor below the top floor, when the ladder main body 1 corresponding to the floor and the butting end of the strut 2 of the ladder main body 1 corresponding to the upper floor are pulled out of the connecting tool 26, The ladder main body 1 in the connected state is divided in the middle, and all the ladder main bodies 1 corresponding to the lower floors can be simultaneously deployed and used at the same time. Evacuation to the ground can be done safely.
[0034]
In addition, when the evacuation ladder according to the present invention is not used, that is, in a normal state, in a state where both columns 2 and 3 are joined and the form is reduced, the column back surface is held in the storage position along with the wall surface A. Therefore, the presence of the evacuation ladder does not interfere. In addition, since the step 5 is also substantially upright in the two columns 2 and 3 in the joined state, the band-shaped spring piece 19 having the tip introduced into the specific step is also extended to release the spring force. With this configuration, the spring force does not weaken over time, and even if the device is not used for a long period of time, stable performance is exhibited without performance deterioration.
[0035]
【The invention's effect】
The present invention is implemented in the form described above, and according to the present invention, when not used in normal times, the left and right columns are joined, the ladder main body is reduced in form, and this is attached to the wall surface. Since the ladder is kept in the retracted state, the presence of the evacuation ladder does not interfere. Also, when using the evacuation ladder in an emergency, the ladder main body is automatically deployed away from the wall surface by a simple operation that anyone can do from the stowed state, and a predetermined gap is formed between it and the wall surface. Since it is fixed in the use position, even children and women and girls do not feel a sense of fear, and have an excellent effect of being able to quickly take evacuation behavior.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a state in which a ladder main body of an evacuation ladder according to the present invention is expanded.
FIG. 2 is a perspective view showing a storage state of the evacuation ladder according to the present invention.
FIGS. 3A and 3B are schematic side views for explaining a use state of the evacuation ladder.
FIG. 4 is a partially enlarged sectional view showing a state in which a ladder main body of the evacuation ladder according to the present invention is expanded.
FIG. 5 is a partially enlarged sectional view showing a stored state of the evacuation ladder according to the present invention.
FIG. 6 is a perspective view showing a state in which a ladder main body according to another embodiment of the evacuation ladder according to the present invention is expanded.
FIG. 7 is a perspective view showing a stored state of a ladder main body showing another embodiment of the evacuation ladder according to the present invention.
FIG. 8 is a perspective view showing a connecting portion between ladder main bodies of the evacuation ladder according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Ladder main body 2 Support 3 Support 4 Recess 5 Stepping bar 6 Axis 7 Undulating support rod 7a Fixed support rod 7b Horizontal receiving seat 8 Mounting plate 9 Axis 10 Fixing means 11 Support member 12 Locking rod 13 Locking recess 14 Mounting plate DESCRIPTION OF SYMBOLS 15 Fastener 16 Movable plate piece 17 Fastening hole 18 Fastening piece 19 Band-shaped spring piece 19a Band-shaped spring piece tip 20 Holding member 21 Inner backing plate 22 Outer backing plate 23 Mounting plate portion 24 Through hole 25 Fixed pin 26 Connector 27 Body 28 Fixing pin 29 Through hole

Claims (6)

Including a ladder body, an inner patch, and fixing means,
  The ladder body has a first column and a second column parallel to the left and right, and a plurality of steps,
  The fixing means has a support member attached to the wall so as to protrude forward from the wall, and a locking portion provided on the second support,
  Ends of the plurality of steps are rotatably connected to the first support and the second support in the up-down direction, so that the plurality of steps are interposed between the first support and the second support. A step is erected,
  The first support is attached to the wall surface via an up / down support rod, and the base end of the up / down support rod is pivotally attached to the wall surface so that the up / down support rod can fall forward and downward. The strut is pivotally attached to the tip of the undulating support rod,
  The first support can take a first state in which, when the undulating support rod stands, its lower end floats by a predetermined height from the floor surface and abuts on the wall surface,
  The first support can be in a second state in which when the up-and-down support rod falls forward, the first support is separated from the wall surface by a predetermined distance forward.
  The second support takes a first state of joining with the first support when the plurality of steps rise so that the second support-side end is higher than the first support-side end. It is possible,
  The second support can take a second state in which the second support is separated from the first support when the first support-side end and the second support-side end of the plurality of steps are substantially at the same height. ,
  The ladder body can be placed in a storage position where the first post assumes a first state, and the second post assumes a first state,
  The ladder body can be placed in a use position where the first post assumes a second state, and the second post assumes a second state,
  The inner patch is attached to the wall surface,
  The inner backing plate projects forward from the wall by a length that reaches a side of the second support opposite to the first support when the ladder body is placed in the storage position,
  When the ladder body is placed in the storage position, the inner support plate abuts on the side surface of the second support so that the second support does not separate from the first support, and Maintaining the two posts in the first state,
  The first post is moved from the first state to the second state by moving the first post of the ladder body in the storage position forward from the wall surface, and the second post is placed on the inner support. Moving from the first state to the second state away from the board, and finally placing the ladder body in the use position;
  When the ladder main body is placed in the use position, the locking portion of the fixing means is locked to the support member of the fixing means, whereby the ladder main body is fixed in the use position. Ladder. 2. The evacuation ladder according to claim 1, wherein the undulating support rod is provided at a position near the upper and lower ends of the first support, and the fixing means is provided at a position near the upper and lower ends of the second support. In the said first inside support column, the said first strut inner surface in particular踏桟lower, fixed to the base of the strip-shaped spring piece an upwardly exerting a spring force, against the tip of the spring piece to the spring force 2. The specific stairway is biased in a direction in which the second strut rises with respect to the first strut by being introduced into the stairway from an end of the stairway . Evacuation ladder. The undulating support rod base is pivotally attached to a fixed support rod protruding from an attachment plate attached to the wall surface, and a lower end edge of the fixed support rod restricts rotation of the undulated support rod. The evacuation ladder according to claim 1, wherein the seat protrudes horizontally. In addition, an outer patch is provided,
The inner patch and the outer patch face each other ,
When該梯Ko body is in the storage position, and the said first strut and said second strut joined together, is housed between the inner backing plate and the outer caul, to the ladder body said storage position Ru is held, ladders for evacuation of claim 1, wherein. Arrange multiple ladder bodies in series,
And attached removably to coupling to the butt end of the first strut continuous vertically, connecting the first support column together and continuous under the upper,
And attached removably to coupling to the butt end of the second strut continuous vertically, the concatenation of the second strut each other successive under upper ladder for evacuation of claim 1, wherein.

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