JPH0536960Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to an evacuation ladder attached to a building and used when evacuating from an upper floor to a lower floor.

(Prior Art) A conventional evacuation ladder of this type is formed to be foldable, housed in a hatch, and incorporated into the floor of a balcony.

If you open the hatch and pull the ladder extension lever, the ladder will extend and reach the lower floor, allowing you to evacuate to the lower floor through the opening of the hatch and along the ladder.

(Problems to be Solved by the Present Invention) The above-mentioned evacuation ladder is configured by accommodating a row of foldable horizontal rods between sliding parallel vertical rods.

The slide-out type parallel vertical rods are easy to bend, and
When the ladder is extended, the vertical bars are only touching the floor of the lower floor, but are not fixed and unstable.
When using a ladder, the ladder flexes and swings, giving the user a sense of anxiety.

In addition, the combination of sliding vertical rods and folding horizontal rod rows results in a complicated structure and increased costs.

The present invention reveals an evacuation ladder that has a simple structure, is stable with little shaking during use, and can be manufactured at low cost.

(Means for solving the problem) In order to solve the above problem, the evacuation ladder of the present invention has a guide bar 1 fixedly installed vertically between the upper and lower floors of a building, and an undulating upper end of the guide bar 1. The width of the guide bar 1 gradually increases at the bottom and has a tapered surface 12 on the longitudinal side. . The inner width W of the slider 32 of each footboard 3 gradually increases over the footboards.

(Operation and Effect) Each footboard 3 of the evacuation ladder is accommodated on the undulating bar 2 which is fallen down at the upper end of the guide bar 1.

When using the evacuation ladder, the undulating bar 2 is raised and aligned on the straight extension line of the guide bar 1.

Each footboard 3 slides from the relief bar 2 onto the guide bar 1.

The slider 32 of each footboard 3 is connected to the guide bar 1
The inner width W gradually increases from the upper tread plate 3 to the lower tread plate 3 corresponding to the taper width of the slider 32 and the width of the guide bar 1. , locked at different height positions.

You can step down by placing your foot on each footboard 3.

The guide bar 1 is fixedly arranged vertically between the upper floor and the lower floor, so it does not bend much even when force is applied, and the tapered surface 12 of the guide bar 1 matches the inner width of the slider 32 of each footboard 3. Since the wedge is tightly engaged with W, the footboard 3 will not tilt.

Therefore, even if the weight of the evacuee is applied to the footboard 3,
The evacuation ladder does not shake much and has excellent stability.

Furthermore, it can be easily constructed with one guide bar 1, an undulating bar 2 provided on the upper end of the bar so as to be undulating, and a footboard 3 slidably provided on both bars 1 and 2, and can be manufactured at low cost.

(Examples) Since the examples described below are for explaining the present invention, they should not be construed to limit or reduce the invention described in the scope of the utility model registration claims.

FIG. 1 is a front view of the evacuation ladder in a used state, FIG. 2 is a side view thereof, and FIG. 3 is a side view of the evacuation ladder in a standby state.

An entrance 51 with a lid 52 is provided on a balcony 5 on the upper floor of the building. The lid 52 of the elevator opening 51 opens upward and stands vertically to fully open the elevator entrance 51.

A stay 1 has a guide bar 1 arranged approximately vertically from an entrance 51 toward the vicinity of a balcony 5a on the lower floor, and the upper and lower parts of the guide bar 1 protrude from the wall of the building.
Fixed to 1.

The guide bar 1 is formed in the shape of a long plate whose width gradually increases from the upper end to the lower end, and has tapered surfaces 12, 12 on both sides, and a stopper 1 at the bottom.
3 is installed protrudingly.

An undulation bar 2 is rotatably connected to the upper end of the guide bar 1 by a pin connection, and the undulation bar 2 is fixed to the back surface of the lid 52 of the elevator opening 51 by a stay 21.

The undulating bar 2 is formed into a plate whose width and thickness match the upper end of the guide bar 1, and has a mounting plate 22 for a winding drum 4, which will be described later, protruding from its tip.

A plurality of footboards 3 are slidably disposed on the undulating bar 2.

As shown in FIG. 5, each footboard 3 has a rectangular frame 31.
It is formed with a slider 32 protruding from the center of one side edge in the longitudinal direction.

The slider 32 includes the undulating bar 2 and the guide bar 1
is formed into a flat rectangular cylinder that can be slidably fitted into the
A vertical groove hole 33 is formed on the back surface of the cylinder, and the stay 11 fixes the bars 1 and 2 when the slider 32 slides the bars 1 and 2.
Pass 21.

From the top step board 3 to the bottom step board 3, the inner width W of the slider 32 of each step board 3 gradually increases in correspondence to the tapered width of the guide bar 1.

Each footboard 3 has a wire insertion hole 34, which will be described later, between the frame body 31 and the slider 32.

A box 23 is attached to a mounting plate 22 at the tip of the undulating bar 2, and a winding drum 4 is rotatably disposed within the box 23.

The tip of the wire 41 wound around the drum 4 is passed through the wall of the box 23 to each step board 3.
The wires are passed through the wire insertion holes 34 in this order, and the wires are locked to the footboard 3 at the bottom.

A stop device 40 is connected to the drum 4, and the stop device includes a ratchet wheel 42 attached to the drum 4.
and a pawl 43 that removably engages with the ratchet wheel.

The claw 43 allows the ratchet wheel 42 to rotate in the wire winding direction, but prevents the wire 41 from rotating in the drawing direction.

An engagement release button 44 is connected to the claw 43, and while the button is pressed, the engagement between the claw and the ratchet wheel 42 is released, and the drum 4 becomes free.

The rotating shaft 45 of the ratchet wheel 42 and the release button 44 pass through the box 23 and protrude to the outside.

A handle 46 can be detachably attached to the rotating shaft 45 of the drum 4.

However, as shown in FIG. 3, during standby, the treads 3 are housed close to each other on the undulating bar 2 which is reclined at right angles within the entrance 51, and the lid 52 of the entrance 51 is closed. .

On the floor where the entrance 51 is provided, the footboard 3 is hidden behind the lid 52, so that the beauty of the balcony 5 is not spoiled.

To use the evacuation ladder, open the lid 52 of the entrance 51.
Open it, raise the undulation bar 2 fixed to the back of the lid,
The bar is positioned on an extension of the guide bar 1.

Next, press the stop release button 4 of the winding drum 4.
4 to disengage the ratchet wheel 42 and pawl 43 of the drum 4, leaving the drum 4 in a free state.

The wire 41 is pulled out from the drum 4 by the weight of the footboard 3, and the footboard 3 slides down from the undulation bar 2 to the guide bar 1.

The slider 32 of each step 3 is connected to the guide bar 1
Corresponding to the taper width, the inner width W gradually increases from the upper step plate 3 to the lower step plate 3, and each step plate 3 is engaged at a different height position corresponding to the inner width W of the slider 32 and the width of the guide bar 1.

You can step down by placing your foot on each footboard 3.

The guide bar 1 is fixedly arranged vertically between the upper floor and the lower floor, so it does not bend much even when force is applied, and the tapered surfaces 12, 12 of the guide bar 1 are attached to the slider 32 of each footboard 3. Since the wedge is tightly engaged in the driven state, the footboard 3 does not tilt, and even when the user's weight is applied to the footboard 3, the evacuation ladder does not shake much and has a sense of stability.

To store the evacuation ladder in standby mode, press Drum 4.
The handle 46 is inserted into the rotating shaft 45 of the wire 41 and rotated in the winding direction of the wire 41 to wind the wire 41. The lowermost footboard 3, which is locked to the wire 41, is pulled up, and the footboard 3 pushes up the upper footboards 3 in sequence, so that all the footboards 3 are moved onto the undulating bar 2.

Before pulling up the wire 41, if the slider 32 of each footboard 3 is tapped upward with a hammer to release the tight engagement between the slider 32 and the guide bar 1, the wire 41 can be pulled up easily. I can do it.

By folding down the undulation bar 2 and closing the lid 52 of the entrance/exit 51, the footboard 3 can be accommodated in the entrance/exit 51 as shown in FIG.

The drawings and the description of the above-mentioned embodiments are for explaining the present invention, and are not intended to limit or reduce the scope of the invention described in the claims of the utility model registration.

For example, the winding wire 41 and the wire 4
1 can be omitted. In this case, when returning the footboard 3 to the undulation bar 2, it is possible to use another ladder and push up the footboard 3 by hand.

[Brief explanation of the drawing]

Figure 1 is a front view of the evacuation ladder in use, Figure 2 is its side view, Figure 3 is a side view of the evacuation ladder in its standby state, Figure 4 is an explanatory diagram of the hoisting drum, and Figure 5 is of the tread. It is a slope view. 1...Guide bar, 2...Elevation bar, 3...Treadboard, 13...Slider.

Claims (1)

[Claims for Utility Model Registration] A guide bar 1 fixedly arranged vertically between the upper and lower floors of a building, a undulating bar 2 arranged so as to be undulating at the upper end of the guide bar 1, and an undulating bar Multiple treads 3 slidably arranged on 2
The guide bar 1 gradually expands downward and has a tapered surface 12 on the side surface in the longitudinal direction,
The undulating bar 2 continues straight to the guide bar 1 in the upright state, and each tread plate 3 has a slider 32 that is slidably fitted into the guide bar 1. The inner width W of the slider 32 is gradually expanded, and each footboard 3 has an inner width W of the slider 32.
An evacuation ladder characterized in that the evacuation ladder is fixed at different height positions on the guide bar according to the width of the guide bar 1. A hoisting drum 4 is disposed near the undulating bar 2, and a wire 41 pulled out from the drum is slidably passed through each footboard 3 and is locked to the lowest footboard. The stop device 40 includes a ratchet wheel 42 attached to the drum, and a pawl 43 that is connected to the ratchet wheel 42 and allows the wire 41 to rotate in the winding direction but prevents it from rotating in the drawing direction.
and a release button 44 that is connected to the pawl and engages and disengages the pawl 43 and the ratchet wheel 42.