JP3031777U - Evacuation ladder - Google Patents

Abstract

(57) [Abstract] [Problem] The structure of a ladder for evacuation so that it can be easily and easily assembled at an installation site and the lower end of the ladder can be easily and easily fixed to a veranda on the lower floor. And the task is to devise a fixing mechanism to the building. SOLUTION: End plates 5 are fixed to both ends of a horizontal rail 4 of a ladder, and holes 6 for screwing are provided in the end plates 5, and a cross section made of stainless steel is provided.
A square hole 2 for inserting both ends of the horizontal bar 4 is provided on the inner side wall of the vertical bar 1 of the mold, a hole 3 facing the hole 6 is provided on the outer side wall, and the above-mentioned square of the inner side wall of the vertical bar 1 is provided. A ladder in which both ends of the horizontal rail 4 are inserted into the hole 2 and set screws 13 are inserted into the holes 3 of the outer side wall, whereby the end plate 5 of the horizontal rail 4 is screwed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to an evacuation ladder structure and its mounting mechanism, which can reduce the manufacturing cost, facilitate the mounting of the evacuation ladder to a building, and use the evacuation ladder to escape safely and easily in an emergency. It is a thing.

[0002]

[Prior art]

 Evacuation ladders for emergency evacuation of high-rise buildings include fixed ladders attached to the outer wall of the building and folding ladders folded and stored in a box hatch embedded in the balcony on the upper floor. The former fixed ladder 20 is formed by welding (W) both ends of a horizontal rail 22 to long vertical bar members 21 on the left and right (FIGS. 8 and 9). Then, the upper end of this ladder is fixed to the inner surface of the square frame of the hatch H on the balcony on the upper floor by bolts, and is further fixed to the outer wall B of the building by a large number of stays 23. However, modern buildings cannot have the stays 23 of the ladder 20 attached to them because their outer walls are new building materials (for example, building materials such as ALC, plaster, slate), and thus the building aggregates There is nothing to fix the direct stay 23. The construction cost is high for the structure in which the stay 23 is directly fixed to the aggregate of the building. In addition, since there are many bay windows in a recent building, the stay 23 becomes long in order to avoid this, so in order to stabilize the ladder 20, it is necessary to further strengthen the stay 23 and its fixing portion. become. This fixed ladder is made of stainless steel for rust prevention, and the both ends of the horizontal bar are welded and fixed to the left and right vertical bars to assemble the ladder. 21 and the horizontal rail 22 are discolored in the heated portion, and the commercial value is reduced. Then, a correction process for eliminating this discoloration is required, which causes an increase in cost. Furthermore, the transportation cost is high because there is no choice but to bring the factory assembled items to the installation site. In addition, there is a ladder in which the upper half is fixed to the wall and the lower half is movable (Japanese Utility Model Laid-Open No. 61-201500), but this one has the same problem as the fixed one. , There is a problem in operation during use. Folding ladders are usually compactly housed in a hatch and can be quickly extended and used in an emergency, which is extremely rational (Japanese Utility Model Publication No. 58-141300). However, it has been pointed out that there is a problem with emergency evacuation during an earthquake. In other words, the swaying of a suspended ladder during an earthquake is large, and although it is stabilized by a damper, if there are aftershocks during descent using this ladder, children and the elderly will not be able to descend safely. It is said. From this point of view, a fixed ladder is desirable for the evacuation ladder.

[0003]

[Problems to be solved by the device]

 The present invention relates to a fixed ladder for evacuation, which can be easily and easily assembled at the installation site, and the lower end of the ladder can be easily and easily fixed to the veranda on the lower floor so that the ladder structure and the building can be easily fixed. The challenge is to devise a fixing mechanism.

[0004]

[Means for Solving the Problems]

 Means taken for solving the above-mentioned problems are constituted by the following elements (a) to (d) on the premise of the conventional fixed evacuation ladder. (A) End plates are fixed to both ends of the horizontal rail of the ladder, and holes for screwing are provided in this. (B) Stainless steel cross section] Both ends of the horizontal rail are attached to the inner side wall of the vertical bar. A square hole to be inserted was provided, and a hole opposite to the hole was provided on the outer side wall. (C) Insert both ends of the cross rail into the square hole on the inner side wall of the vertical bar, and A set screw was inserted into the hole so that the end plate of the horizontal rail could be screwed. (D) A vertical bar so that the block-shaped non-slip projections protruding from the upper surface of the veranda on the lower floor can be fitted. The lower end of the lumber was opened and the upper end of the vertical bar was fixed to the inner surface of the hatch frame of the veranda on the upper floor.

[0005]

[Work]

 Insert both ends of the horizontal bar into the square holes on the inner side walls of the left and right vertical bars, insert a set screw into the holes on the outer side walls, and screw this into the screw holes on the end plate of the horizontal bar to make the ladder. Can be assembled. When the end plate is welded to the horizontal rail, the end portion of the horizontal rail becomes discolored. However, this end does not need to be corrected because the end is inserted into the vertical bar and the end is not exposed (hidden) when the ladder is assembled. Also, since the ladder is assembled with screws, it can be easily and easily assembled at the installation site. Insert the lower end opening of the vertical bar of the ladder into the anti-slip projection protruding from the upper surface of the veranda on the lower floor, and fix the upper end of the ladder to the inner surface of the square frame of the hatch H as in the conventional fixed evacuation ladder. The ladder is installed between the upper and lower balconies. Since the stay for attachment is not required, the manufacturing cost of the ladder is low, and it is necessary to project the anti-slip protrusion on the upper surface of the veranda on the lower floor, which is a work for fixing the stay to the outer wall. Remarkably simple compared to. Therefore, the installation work of the ladder is extremely simple and easy, and the cost of the installation work is significantly reduced. If the non-slip protrusions are provided in advance on the upper surface of the balcony on the lower floor, the work of attaching the ladder will be even easier and easier.

[0006]

【Example】

 Next, embodiments will be described with reference to the drawings. The vertical bar material 1 is a channel material having an inner and outer cross-section. This cross-section] type channel material is provided with a square hole 2 on the inner side wall, and a hole 3 is provided on the outer side wall so as to face the hole 2. The horizontal rail 4 is also made of the same channel material as that of the vertical bar 1, and is attached downward to the vertical bar. A square end plate 5 made of an angle member having an L-shaped cross section is fitted to both ends of the horizontal rail 4 and fixed by welding. A hole 6 is provided in this end plate 5. Insert both ends of the horizontal rail 4 into the square holes 2 on the inner side surfaces of the left and right vertical bar members 1, 1 and set screws 13 into the holes 3 on the outer side wall, and screw holes 6 of the end plate 5 of the horizontal rail. The ladder is assembled by screwing into the vertical bar members 1 and 1 and fixing both ends of the horizontal bar 4 to the vertical bar members 1 and 1, respectively. The upper ends of the vertical bar members 1 and 1 are closed by a cap-shaped cover 7, but the lower ends thereof remain open. A pair of upper and lower L-shaped slots 10 are provided on one side of the mounting bracket 9, and a vertical slot 11 is provided on the other side. A mounting bolt 8 is passed through the elongated hole 11 and the mounting bracket 9 is mounted on the upper end of the vertical bar 1 so that the vertical position can be adjusted. The L-shaped slot 10 of the mounting bracket 9 is engaged with the bolt 12 fixed to the frame of the hatch H embedded in the balcony on the upper floor, and the nut is tightened to fix the bolt to the frame of the hatch H. The non-slip projections 14 projecting from the upper surface of the balcony on the lower floor are fitted into the lower end openings of the left and right vertical bar members 1, 1 and the mounting bracket 9 is fixed to the hatch H on the upper floor by bolts 12, so that the ladder moves up and down. Is attached between. The anti-slip protrusions 14 are fitted into the lower end openings of the vertical bars 1 and 1 to prevent the lower end of the ladder from slipping on the upper surface of the balcony of the lower floor. However, the anti-slip projection 14 in this embodiment is obtained by fixing the block 17 with the implant bolt 15. That is, the bolt 15 is embedded in the upper surface of the balcony on the lower floor, the bolt 15 is inserted into the vertical hole of the block 17, and the nut 16 is tightened and fixed. The block 17 is formed by press-molding a stainless steel plate. It is a trapezoidal block.

[0007]

[Effect]

 As described above, this device can easily and easily assemble a fixed evacuation ladder at the installation site, and the discolored part will not be exposed on the surface due to heat from welding. Therefore, the manufacturing cost can be reduced. Furthermore, because it is not attached to the outer wall, it is possible to install a fixed evacuation ladder regardless of the outer wall material of the building, and since the stay for mounting is not required, the installation work is easy and easy. Can be done. There is also one in which the upper end is fixed to the hatch frame of the balcony on the upper floor and the lower end is fixed to the upper surface of the balcony on the lower floor with bolts (Japanese Utility Model Publication No. 64-18300), but this one is for the ladder. Since the lower end is completely bolted to the upper surface of the balcony on the lower floor, the fixing bolts are exposed, so there is a problem in appearance, and the bolts interfere with daily life, and are also used for fixing and removing the ladder. Although there are problems such as taking time and labor, the ladder of this invention is designed to prevent the lower end of the ladder from slipping by fitting the lower end of the ladder to the anti-slip projections protruding from the upper surface of the balcony on the lower floor. However, there is an advantage that there is no problem mentioned above.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment.

FIG. 2 is a side view of FIG.

FIG. 3 is a front view of the ladder according to the embodiment.

FIG. 4 is a view on arrow AA of FIG.

5 is an enlarged view of part E in FIG.

FIG. 6 is a side view of FIG. 5;

7 is an enlarged view of an F portion including the cross section of FIG.

FIG. 8 is a side view of a conventional fixed evacuation ladder.

9 is a partially enlarged perspective view of the upper portion of FIG.

[Explanation of symbols]

 1, 21 ... Vertical bar material 2 ... Square hole 3 ... Hole 4, 22 ... Horizontal bar 5 ... End plate 6 ... Screw hole 7 ... Cap cover 8.・ ・ Mounting bolts 9 ・ ・ ・ Mounting brackets 10 ・ ・ ・ L-shaped slots 11 ・ ・ ・ Long holes 12 ・ ・ ・ Bolts 13 ・ ・ ・ Set screws 14 ・ ・ ・ Slip-proof protrusions 15 ・ ・ ・ Plant bolts 16 ・ ・・ Nut 17 ・ ・ ・ Trapezoidal block 20 ・ ・ ・ Fixed ladder 23 ・ ・ ・ Stay W ・ ・ ・ Welding H ・ ・ ・ Hatch B ・ ・ ・ Outer wall of building

Claims (2)

[Scope of utility model registration request] 1. A square in which end plates are fixed to both ends of a horizontal rail of a ladder, and holes for screwing are provided in this, and both ends of the horizontal rail are inserted into an inner side wall of a vertical bar material of stainless steel section] type. Hole is provided on the outer side wall, a hole opposite to the hole is provided on the outer side wall, both ends of the cross rail are inserted into the square hole on the inner side wall of the vertical bar, and a set screw is inserted into the hole on the outer side wall. A ladder designed to screw the end plate of the horizontal rail with. 2. A square in which end plates are fixed to both ends of the horizontal rail of the ladder, holes for screwing are provided in the both ends, and both ends of the horizontal rail are inserted into an inner side wall of a vertical bar material of stainless steel section] type. Hole is provided on the outer side wall, a hole opposite to the hole is provided on the outer side wall, both ends of the cross rail are inserted into the square hole on the inner side wall of the vertical bar, and a set screw is inserted into the hole on the outer side wall. The end plate of the horizontal bar is screwed by using, and the block-shaped anti-slip projections protruding from the upper surface of the veranda on the lower floor are fitted into the lower end openings of the vertical bars, and the upper ends of the vertical bars are Fixed evacuation ladder fixed to the inside of the hatch frame on the balcony.