JP2531917B2 - Ladder - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an evacuation ladder used for evacuation from the upper floor in an emergency such as a fire and a ladder used for home work.

[0002]

2. Description of the Related Art Conventionally, the following items have been mainly used as evacuation tools for escaping from the upper floor to the ground in an emergency. First of all, there is an emergency escape bag, which is a strong, cylindrical cloth bag that has a length that slopes diagonally from the upper floor to reach the ground. In the case of an emergency, pull it down to the ground from the frontmost part in an emergency and install the cylindrical cloth bag at an angle, and slide down inside the cylindrical cloth bag from the upper floor to the ground. And evacuate.

Next, there are ropes and rope ladders, which lower the ropes and rope ladders from the upper floor to the ground, and are caught by the ropes or rope ladders in an emergency to try to descend. However, using the above-mentioned emergency escape bag, rope, and rope ladder to evacuate to the ground from the upper floor in an emergency involves many risks,
Without considerable physical strength and some training, it is difficult to use them to evacuate.

On the other hand, the evacuation ladder in which the horizontal rods for steps are erected at an appropriate interval between the two vertical rods is an evacuation means that is far easier to get off than ropes or rope ladders. This evacuation ladder is stable and stable even when you step downstairs or downstairs in an emergency, so it is safe,
It is possible to easily go downstairs if there is no obstacle in the motor function.

However, since the evacuation ladder can be used in times other than an emergency, there is a risk that it may be accidentally used by a child or the like, or may climb up and down by mischief, causing an unexpected situation. In addition, since it is possible to climb upstairs using the evacuation ladder, it becomes easy for others to infiltrate upstairs from the outside,
Not preferable from the viewpoint of crime prevention.

Further, when the evacuation ladder is of a fixed type, it cannot be moved to a free place, so that it cannot be used as a ladder for home work in normal time, and can only be used for emergency evacuation. was there. Therefore, an object of the present invention is to solve the problems in the above-mentioned conventional example, to provide a ladder excellent in crime prevention property and which can be easily used for self-work during normal times.

[0007]

That is, in order to achieve the above object, according to the present invention, in a ladder in which horizontal rods for steps are installed in parallel at a predetermined interval between two vertical rods, and detection means for detecting that there is an object in the rod or vertical杆上, and outgoing voice when it detects that the sensing means is an object to Yoko杆or Tate杆, objects below Yoko杆or vertical
As you move from the rod to the upper horizontal rod or vertical rod, or
As the time when an object exists from the start of voice generation,
Providing a ladder characterized by having a sound generating means sound gradually increases ing.

Further , in the case of a ladder having a structure in which the vertical rod can be folded or expanded and contracted, it is equipped with a detection means for detecting the expansion or extension of the vertical rod, and the detection means detects the expansion or extension of the vertical rod. At this time, it is preferable that the sounding means emits a voice.

[0009]

According to the ladder according to the present invention, when a person tries to go up by using the ladder, the detecting means detects the person on the horizontal rod or the vertical rod, so that the sounding means emits a voice.
As a result, the person who climbs the ladder hesitates to use the ladder due to this voice and stops climbing. Here, if the sounding means emits a voice and an alarm device that issues an alarm is installed at another place apart from the ladder, another place away from the ladder, for example, a living room, is installed when a person climbs up the ladder. It is effective for crime prevention, etc. Especially, as a person goes up from the lower horizontal rod or vertical rod to the upper horizontal rod or vertical rod, the sound generated by the sounding means becomes louder , so that the voice can be heard even in the neighborhood or at home. , People are forced to give up climbing ladders. This is also the case when the sound is made louder as the time when a person is present elapses after the sound generation means starts generating the sound.

Further, in the case of a ladder having a structure in which the vertical rod can be folded or expanded and contracted, a detection means for detecting the expansion or extension of the vertical rod is provided, and the detection means detects the expansion or extension of the vertical rod. At this time, if the sounding means emits a sound, it is possible to obtain the effect of preventing the sound from being used by another person from the initial stage of using the ladder. The ladder can be used as an ordinary ladder, in addition to having the detecting means and the sounding means. That is, the upper part of the ladder is usually fixed to the building and used as an evacuation ladder, but if the fixed state is released, the ladder can be carried to any place and used for home work.

[0011]

Embodiments of the present invention will now be described in detail with reference to the drawings. 1 and 2 show a first embodiment of the present invention. As shown in FIG. 1, step parallel rods 2, 2, ... Are suitably provided between two parallel vertical rods 1. It is installed in parallel at various intervals. One end of this horizontal rod 2 is a hinge 3
And is supported by one vertical rod 1 so as to be capable of minute rotation. The other end of the horizontal rod 2 is hung from the other vertical rod 1 by a spring 4, and switches 6 and 7 are attached below the other end of the horizontal rod 2. As a result, when a load 5 over the horizontal rod 2 is applied from above, the end of the horizontal rod 2 pushes the switches 6 and 7,
From the sounding device 12 which is synchronized with the switches 6 and 7, for example, an explanation such as "a loud sound is produced as the ladder is climbed up" or a sound such as a warning or an alarm bell is emitted.

FIG. 2 shows the sound generating device 1 and the switches 6 and 7.
2 is a block diagram showing a relationship with 2. Here, the switch 6 provided below the lower horizontal rod 2 is a power switch, and when it is turned on, the sounding device 12 is turned on and the sounding device 12 emits a voice. The switches 7, 7 ... provided below the second or more horizontal rod 2 from the bottom are
It is a level switch that can be closed.
As 7 ... goes up, the sound of the sounding device 12 becomes louder.

When a voice is emitted from the voice device 12, if an alarm device 13 placed in another place, for example, a living room, issues an alarm, it is possible that another person is using the ladder. Can be found in a place away from In FIG. 2, the sounding device 12 and the alarm device 13 are connected via a signal line, but they may be connected by a wireless device.

As described above, since the switch 6 under the lower horizontal rod 2 is a power switch, it is possible to prevent sudden loud sound when the user descends from above. Further, another power switch 17 provided in series with the switch 6 is attached to the upper portion of the vertical rod 1, and the power of the sounding device is opened and closed here to stop the function of the sounding device 12, thereby making it possible to operate the normal self It can also be used as a work ladder. In addition, the holding device 1 that can be easily attached to the balcony etc.
It is preferable to have 6 and to prevent the holding device 13 from moving to another without releasing it, thereby preventing theft and the like, and at the same time, preventing accidents such as falls during evacuation.

FIG. 3 shows a second embodiment of the present invention. In this embodiment, the load sensor 14 is provided below the vertical rod 1,
A sounding device (not shown in FIG. 3) is detected by the sensor 14 detecting that a load greater than a certain load is applied to the vertical rod 1.
Is turned on and a voice warning is issued. here,
As long as the load sensor 14 detects a load equal to or higher than a certain load, it is preferable that the voice continues and the sound becomes louder as time elapses from the start of sound generation. As the load sensor 14, a spring and a switch, a rubber and a contact, a strain gauge, a piezoelectric, or the like can be used.

FIG. 4 shows a third embodiment of the present invention. In this embodiment, one or more horizontal rods 2 and 2 below are provided with the above-mentioned power source switch, and above the vertical rod 1 a sounding device 11 having an automatic distance measuring mechanism is provided.
The position of an object such as a person on the horizontal rod is measured, and a voice having a loudness corresponding to the position is emitted.

FIG. 5 shows a fourth embodiment of the present invention. In this embodiment, the distance between the horizontal rods below the ladder is wide. Therefore, children and the like cannot easily climb up, which prevents children from being mischievous and helps prevent accidents. In this case as well, the horizontal rod 2 is provided with switches 6 and 7 similar to those in the embodiment of FIGS. 1 and 2.
And the sounding device 12 are attached.

FIG. 6 is an example in which the present invention is applied to a foldable ladder. The figure (a) shows the folded state, and the figure (b) shows the ladder unfolded so that it can be used. is there. One end of the lock link 9 is hinged to the vertical rod 1 on one side.
And the other end of this lock link 9 is engaged with the lock pin 10 of the other vertical rod 1,
The folded state is locked. Near the lock pin 10 is a switch 8, which is open when the end of the lock link 9 is engaged with the lock pin 10. From this state, release the folding lock state,
When the end of the lock link 9 is removed from the lock pin 10 in order to deploy the ladder, the switch 8 is closed and the sounding device 11 is activated to generate a voice. Other configurations are similar to those of the embodiment shown in FIG. If the lock link 9 is detached from the lock pin 10 after the power of the sounding device 11 on the upper side is turned off, no sound is emitted, and therefore, the state can be used for general use.

As shown in FIG. 6B, the free end of the lock link 9 when the lock is released is engaged with the stop pin 15 of the vertical rod 1. As shown in FIG. 6, if the lock mechanism for locking the folded state is provided on the upper side of the vertical rods 1 and 1, there is no risk of being tampered with by children or the like, but when using the ladder in an emergency. Is convenient because the lock can be easily released on the upper floor to deploy the ladder. Further, as another embodiment of the illustrated embodiment, in the case of a so-called double ladder in which two ladders are vertically and elastically connected, an example in which the structure of FIGS. can give. In this case, to extend the ladder,
When the lock is released, the sounding device can be operated by a switch similar to that shown in FIG.

[0020]

As is apparent from the above description, according to the present invention, when the horizontal rod or the vertical rod is subjected to a change such as a load of a certain amount or more, a sound is emitted, so that it is possible for another person to walk on the ladder. It prevents use and gives an alarm about it, and provides a ladder suitable for crime prevention. In particular, as a person goes up from the lower horizontal rod or vertical rod to the upper horizontal rod or vertical rod, the sound produced by the sounding means becomes louder, or time elapses after the sound is produced by the sounding means. I made the sound louder as
In, higher crime prevention effect can be obtained.

Further, in the case of a ladder having a structure in which the vertical rod can be folded or expanded and contracted, it is provided with a detection means for detecting that the vertical rod has been expanded or extended, and this detection means has detected the expansion or extension of the vertical rod. At this time, in the case where the sounding means emits a sound, the effect of crime prevention and tampering prevention can be obtained from the initial stage of using the ladder. In addition,
The ladder can be used as it is as an ordinary ladder in addition to having the detecting means and the sounding means, and thus can be used for self-work.

[Brief description of drawings]

FIG. 1 is a partially longitudinal front view of a ladder which is a first embodiment of the present invention.

FIG. 2 is a block diagram showing the relationship between the switch of the ladder of the first embodiment and the sounding device.

FIG. 3 is a partial front view of a ladder which is a second embodiment of the present invention.

FIG. 4 is a front view of a ladder which is a third embodiment of the present invention.

FIG. 5 is a front view of a ladder which is a fourth embodiment of the present invention.

FIG. 6 is a front view of a ladder according to a fifth embodiment of the present invention in a folded state and a developed state.

[Explanation of symbols]

 1 Vertical bar 2 Horizontal bar 3 Hinge 4 Spring 6 Switch 7 Switch 12 Sound generator 17 Main switch

Claims (3)

(57) [Claims] 1. A ladder in which horizontal rods for steps are installed in parallel between two vertical rods at predetermined intervals, and a detection means for detecting the presence of an object on the horizontal rod or the vertical rod, When detecting means detects that there is an object in Yoko杆or Tate杆and outgoing speech, laterally from Yoko杆or Tate杆of the object below the upper
As you move to the rod or vertical rod, or whether voice generation starts
A ladder characterized by having a sounding means in which sound becomes louder as the time when an object exists from the other object elapses . 2. The vertical rod according to claim 1, wherein the vertical rod is foldable.
Or, it has a structure that can be expanded and contracted, and this vertical rod is expanded or extended.
And the detection means for detecting that
Sounding means that emits a voice when it detects the expansion or extension of
A ladder characterized by having and. 3. The alarm according to claim 1 or 2, wherein the sounding means emits a voice and at the same time issues an alarm.
A ladder characterized in that the alarm is installed in another place apart from the ladder.