JPH028080Y2 - - Google Patents

Description

[Detailed explanation of the invention] In the event of a fire, this invention descends from the upper floors of the second or higher floors onto the balcony, etc. to the floor directly below via a folding ladder through an evacuation exit that connects the upper and lower floors. The present invention relates to a locking device for a ladder mounting frame on which a folding ladder is placed in a folded state in the evacuation exit device of the type described above.

As is well known, the installation of the above-mentioned evacuation exit device is
Although these folding ladders are becoming more and more popular in recent years, there are few types of folding ladders that descend at the same time as the ceiling cover plate on the lower floor is opened via the cover plate on the floor above. The ladder mounting frame is configured to be locked until it is confirmed that there is no one in the area where the folding ladder descends, and then the lock can be released.

Both of the conventional locking devices for the ladder receiving frame are provided on the opposite sides of the hinge portions of the floor cover plate and the ceiling cover plate. Figure 1 is an example.
That is, in the same figure, a is a frame body, b is a floor cover plate provided at one end of frame body a via axis c, and d is a ceiling cover plate provided at one end of frame body a via axis e. cover plate,
f is an actuating plate whose base is pivotally connected to the floor cover plate b via the axis g, h is an interlocking plate whose base is pivotally attached to the ceiling cover plate d via the axis i, and k is the actuator plate f. and the shaft to which the tip of the interlocking plate h is pivoted, _f1 is the guide provided on the actuating plate f, _a1 is the guide groove in which the guide _f1 slides, and l is the shaft whose base is attached to the frame a. n indicates a locking frame having a grip n ₁ which is rotatably mounted on the frame body a in the middle thereof; A locking groove _n2 is formed in the lower part of the frame n, and _{a locking rod l1 provided} at the tip of the ladder frame l is removably locked in this locking groove n2. A stopper _b1 was provided on the cover plate b to prevent the locking frame n from rotating in the locking and releasing direction.

However, in the case where the floor cover plate b and the ceiling cover plate d are provided on the side opposite to the hinge, the locking frame n having the grip n ₁ and the bearing of the shaft o constitute this locking device. A considerable amount of area was taken up by the boards etc. (note: the flat area of the evacuation exit), so it was necessary to make the evacuation exit that much larger. There would be no problem if the evacuation exit was made that large, but in recent years apartment complexes have been built with relatively small area balconies in terms of sales or rental prices. The reality is that residents desire a wide range of uses, whether it's 5cm or 10cm.

This idea was created by focusing on the points mentioned above.
That is, the object of the present invention is to be able to lock the ladder frame without providing a protruding locking part on the inside of the frame body facing the hinged sides of the floor cover plate and the ceiling cover plate. In other words, by configuring it as such, a grip or the like is provided near the frame on the side from which the folding chair is hung, and a grip or the like is provided on the part near the frame on the side opposite to the side from which the folding chair is hung. To provide a ladder mounting frame locking device for an evacuation exit device, which can be effectively used and thereby greatly increase the remaining internal area of a frame body, which is a part through which a human body passes, in a frame body having the same planar area.

Next, an embodiment of the present invention capable of achieving the above object will be described in detail with reference to FIG.

1 is a frame attached to a slab that separates the downstairs and the upper floor; 2 is a floor cover plate provided at one end of the upper part of the frame 1 so as to be openable and closable via a shaft 3; 4 is a frame 1 A ceiling cover plate is provided at one end of the lower part of the unit so as to be openable and closable via a shaft 5, 6 is an actuation plate whose base is pivotally connected to the floor cover plate 2 via a shaft 7, and 8 is an actuation plate 6. 10 is a turnbuckle rotatably provided on the base of the interlocking plate 8 and the ceiling cover plate 4, and 6a is provided on the operating plate 6. The guide element 1a is a guide groove in which the guide element 6a slides, and 11 is a ladder mounting frame.The ladder mounting frame 11 has a side on which the floor cover plate 2 and the ceiling cover plate 4 are hinged, that is, a shaft. 3 and 4, a rising rod 13 having a grip 13a is provided via a shaft 12, and the rising rod 13 is pivotally connected via a shaft 14 to a bearing plate 15 of the frame 1. A locking rod portion 11a is formed at the tip of the ladder frame 11, and the locking rod portion 11a is configured to be able to enter and exit a locking groove 1b formed in the frame body 1.

In the above configuration, when the floor area cover plate 2 is opened, the operating plate 6, the interlocking plate 8, and the turnbuckle 10 are
The ceiling cover plate 4 is opened via the same as in the conventional case. (Note: This is a conventional type with only the actuating plate 6 and interlocking plate 8 without the turnbuckle 10.) Then, the floor cover plate 2 is rotated fully to the right from the imaginary line in FIG. Push 13a in the direction of the arrow. In such a case, the locking rod portion 11c, which is the tip of the ladder mounting frame 11, moves in the direction of the arrow and locks into the locking groove 1.
b, and the folding ladder descends at the same time as it leaves.

As described above, in the present invention, some accessory device, that is, the tip of the ladder frame 11 is installed on the side where the floor cover plate 2 and the ceiling cover plate 4 are hinged, and on the inside of the opposing frame. There is no locking structure to lock, and the rising rod 1 with grip 13a is the operating part of the locking mechanism.
3. By providing the bearing plate 14 of the rising rod 13 on the inside of the hinge side, in other words, the part where the folding ladder is suspended from the frame is a part where the human body does not pass. The remaining internal area of the frame body can be used effectively by providing the frame body with the frame body.

[Brief explanation of the drawing]

FIG. 1 is a vertical side view of an example of a conventional device, and FIG. 2 is a vertical side view of an embodiment of the device of the present invention. DESCRIPTION OF SYMBOLS 1... Frame body, 1b... Locking groove, 2... Floor cover plate, 4... Ceiling cover plate, 11... Ladder mounting frame, 11
a... Locking rod portion, 13... Rising rod, 13a...
Grip, 15...Bearing plate.

Claims (1)

[Scope of utility model registration request] In this type of evacuation exit system, the ceiling cover plate on the lower floor is automatically opened when the floor plate is opened, making it possible to use the folding ladder. A base end of a ladder mounting frame, in which a locking groove is provided in the frame on the side where the cover plate is hinged to the frame and the opposite side, and a locking rod portion serving as a tip portion is provided in the locking groove so as to be able to move in and out. A ladder mounting frame member characterized in that the lower part of a rising rod having a grip on the upper part is rotatably pivotally connected to the part, and the middle of the rising rod is rotatably pivotally connected to a bearing plate of a frame body. Stop device.