JPS6311280Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an evacuation device that is installed on the balcony of a high-rise residential building, etc., and that secures an escape route from the upper floor to the lower floor in the event of an emergency such as a fire.

As a conventional evacuation device of this type, for example,
As disclosed in No. 50-144296, a lifting device in which a plurality of sliding rods with treads fixed to the outer periphery are connected in a cluster in an opening provided between the floor and ceiling of a building. It is known that the emergency evacuation device is stored in a horizontal position and the emergency elevating device is extended in a telescopic manner to form an escape route.

However, since this type of device engages the inner and outer surfaces of cylindrical upper and lower sliding rods with different diameters when extended, not only is high precision processing of the sliding rods required, but also the engagement is caused by body weight. This poses a structural problem as it requires sufficient strength to prevent the parts from deforming and falling off.Moreover, when extended, the sliding rod twists and the position of each tread becomes inconsistent, which poses a safety problem. However, if the upper and lower sliding rods engage with each other due to body weight, the device cannot be easily stored.

The present invention focuses on the above-mentioned difficulties and aims to provide an evacuation device that is easy to manufacture and handle, and is highly safe.

Hereinafter, one embodiment of the present invention will be explained based on the drawings. In Figs. 1 to 3, 1 is a floor slab of a building balcony, etc., and the floor slab 1 has a rectangular escape hole of an appropriate size. A short cylindrical case 2 is fitted into this escape port, and flanges 3, 3 provided around the outer periphery of this case 2 are attached and fixed to the upper and lower surfaces of the floor slab 1 around the escape port. has been done. An upper lid 4 and a lower lid 5 are attached to the upper and lower parts of the case 2 via hinges 6 and 6, respectively, so that they can be opened and closed, and the upper lid 4 is provided with a handle 7 on the back side. A foldable support means 8 in which links 8a and 8b are connected via pins 8c is interposed between the links 8a and 8b, and when the top cover 4 is closed, both links 8a and
8b is folded as shown in FIG. 2, and when the top lid 4 is opened to a substantially upright state as shown in FIGS. Both links 8a are in contact with 8b,
The open posture of the upper cover 4 is maintained by the tension force of the upper cover 8b. A hook fitting 9 is pivotally attached to the tip of the lower lid 5, and an engagement recess 10 shown in FIG. With the hook 9
is engaged with the engagement recess 10 to maintain the closed position of the lower lid 5. On the other hand, a plurality of ladder units 11
A to 11d are vertically fitted together to form a telescoping ladder 11 that is freely telescopic.The uppermost ladder unit 11a of this telescoping ladder 11 is fixedly attached to the upper surface of the lower lid 5, and The telescopic ladder 11 is housed in the case 2 by closing the upper cover 4 and the lower cover 5 with the extendable ladder 11 in a contracted state.

When using it during evacuation, first remove the upper cover 4.
When the hook metal fitting 9 is removed from the engagement recess 10, the lower cover 5 automatically opens and hangs down, and the ladder units 11a to 11d descend under their own weight, causing the telescopic ladder 11 to extend vertically. The evacuee can reach the balcony downstairs by placing his/her hand on the handle 7 of the top cover 4, putting his or her body inside the case 2, hooking his or her feet onto the extension ladder 11, and then climbing down the extension ladder 11. You can move to the balcony on the downstairs side, and by repeating this action on each floor, you can safely escape to the ground.

Ladder unit 11 constituting the telescopic ladder 11
a to 11d are U-shaped cross-sectional side frames 12, 12 facing inward as shown in FIGS. 4 and 5;
A step frame 13 that connects the upper end front surfaces of these side frames 12, 12, and a stopper frame 14 that connects the lower end front surfaces of the side frames 12, 12 (however, the lowermost ladder unit 1
1d) and a supporting frame 15 that connects the rear surfaces of the lower ends of the side frames 12 and 12. The side frame 12 of the lower ladder unit (for example, 11b) is slidably fitted inside, so that when the telescoping ladder 11 is extended, the lower ladder unit (for example, 11b) is connected to the upper ladder unit (for example, 11a). ), the lower ladder unit unit 1
1b stile 13 is the upper ladder unit 11
It comes into contact with the stopper frame 14 of a from above and is prevented from slipping out any further. In addition, stopper frame 1
4 and the foot frame 13 are bent and protruded forward between both ends as shown in FIG. The step frame 13 is brought into contact with the top of the step 14a. That is, since the telescoping ladder 11 is in the retracted position, the other ladder units 11b to 11d are inserted into the uppermost ladder unit 11a as shown in FIG. 4, so the telescoping ladder 11 is retracted from the extended state shown in FIG. For this purpose, the ladder units 11c, 11
Each foot frame 13 of d must slide in the above-mentioned expansion/contraction direction while penetrating the stopper frame 14 without coming into contact with the stopper frame 14 located above the respective foot frame. This also applies when the telescoping ladder 11 is retracted from the extended state. For this purpose, each stopper frame 14 is connected to each stepper frame 13 as described above.
It is made to protrude further forward than the above to enable the above-mentioned penetration. For the same reason, each ladder unit unit 11
As shown by the dashed line in FIG. 5, the protruding width between the right and left sides of the step frames 13 of b to 11d is gradually reduced toward the lower units (in other words, the protruding width is narrowed), and the stopper of each ladder unit 11a to 11c is The protrusion width between the left and right sides of the frame 14 is also gradually reduced toward the lower units, so that vertically adjacent units (for example, 11a and 1
In 1b), the stile 13 of the lower ladder unit 11b comes into contact with the stopper frame 14 of the upper ladder unit 11a and is prevented from being pulled out, but the stile 13 of the ladder unit 11c located one step lower The stopper rod 14 of the upper ladder unit 11a can be freely passed through.
This also applies to the relationships between other ladder units.

6 and 7 show other embodiments of the telescoping ladder 11, in which each ladder unit 1 is used instead of the stopper frame 14 shown in FIGS. 4 and 5.
The tongue-shaped stopper metal fittings 16 are mounted facing each other from the side frames 12 of 1a to 11c, and the protruding side portions 13a of the step frame 13 are brought into contact with the stopper metal fittings 16, as shown in FIG. 7C. This prevents the ladder unit from being pulled out when it is extended.
In addition, in order to make the telescopic ladder 11 expandable and retractable, the protruding width between the right and left sides of the step frame 13 of each ladder unit 11b to 11d is gradually decreased toward the lower units as shown by the dashed line in FIG. In other words, the protrusion width is narrowed) and each ladder unit 1
The spacing between the left and right stopper metal fittings 16, 16 of 1a to 11c is also gradually reduced toward the lower units, so that in vertically adjacent units (for example, 11a and 11b), the step frame 13 of the lower ladder unit 11b is closer to the upper ladder unit 11a. stopper metal fitting 16
However, the step frame 13 of the ladder unit 11c located one level below the left and right stopper metal fittings 1 of the lower ladder unit 11b
It is designed so that it can be freely inserted between 6 and 16.
The extension and contraction of the extension ladder 11 is made possible by maintaining the same relationships among the other ladder units.

FIG. 8 shows another embodiment of the mounting structure for the telescopic ladder 11, and in the embodiment shown in FIGS. 1 to 3, the telescopic ladder 11 is connected and fixed to the lower cover 5. However, in this embodiment, a mounting bracket 19 is provided directly protruding from the inner wall of the case 2, and the base of the telescoping ladder 11 is pivotally connected to this. Since the load of the ladder 11 is directly received by the case 2 instead of the lower lid 5, there is an effect of more reliably holding the telescopic ladder 11 when it is extended.

As described above, the present invention involves fitting and fixing a short cylindrical case to an escape port formed in the floor of a building structure, and equipping the upper and lower parts of this case with an upper cover and a lower cover that can be opened and closed. Since the telescoping ladder is housed in the case in a contracted state when the lower lid is closed, in the event of an emergency such as a fire, the upper and lower lids can be opened and the telescoping ladder can be extended to reach the downstairs. This allows for safe evacuation of a residence by securing an escape route from the upper floor to the lower floor.In addition, the telescopic ladder is made up of multiple unit units with a tread between the left and right U-shaped side frames facing each other. These unit units are connected to each other so that they can slide relative to each other by mutually fitting the side frames, and a stopper means for preventing the unit from coming off is installed between the unit units, so that the telescopic ladder is In the extended state, each unit does not twist in the lateral direction at all, so even women, children, and the elderly can escape safely and smoothly.

In particular, according to the present invention, the stopper means provided at the lower end of the side frame to prevent each unit from coming off when the telescoping ladder is extended is connected to the side of the protruding part of the step of the unit immediately below the unit. Because it is held in place, it can be extended reliably and quickly by its own weight in an emergency, and when stored, it can be easily stored by simply lifting the bottom unit upwards, making it extremely easy to handle and operate. Because the extension ladder can be assembled by simply providing a stopper means on each unit whose side frames are fitted together,
It is extremely easy to manufacture without compromising the strength of each member, making it the most suitable evacuation device of this type.

[Brief explanation of the drawing]

The drawings show the details of the evacuation device according to the present invention; Fig. 1 is a partially cutaway perspective view, Fig. 2 is a vertical side view showing the telescopic ladder in its accommodated state, and Fig. 3 shows its use during evacuation. FIG. 4 is a front view A and a cross-sectional view B showing the telescoping ladder in the contracted state, FIG. and Fig. 7 shows a second embodiment of the telescopic ladder, Fig. 6 is a front view A and a cross-sectional view B showing the contracted state, and Fig. 7 is a front view A and a cross-sectional view B showing the extended state and an enlarged view of the main parts. Figures C and 8 are longitudinal sectional side views showing other embodiments of the present invention. 2...Case, 4...Top lid, 5...Lower lid, 6...
...Hinge, 11...Telescopic ladder, 11a-11d...
...Ladder unit, 12... Side frame, 13... Step frame, 14, 16... Stopper means.

Claims (1)

[Scope of utility model registration request] A short cylindrical case is fitted and fixed into an escape opening formed in the floor of the building structure, and the upper and lower parts of this case are equipped with an upper cover and a lower cover that can be opened and closed, and a telescopic ladder is installed inside the short cylindrical case. The base of the telescoping ladder is attached to the case or the lower cover so that the telescoping ladder can accommodate the telescoping ladder and protrude downward from the case, and the telescoping ladder has a ladder unit in the downward direction between the left and right opposing U-shaped side frames. A plurality of the unit units are constructed by constructing a step frame with a gradually decreasing amount of bending and a protrusion width between both ends of the step frame, and the unit units are connected to each other so as to be relatively slidable by mutually fitting the side frames. In addition, an evacuation device characterized in that a stopper means for preventing removal is provided at the lower end of the side frame so as to be able to come into contact with only the side portion of the protruding portion of the step frame of the unit immediately below.