JPH06165831A - Refuge device - Google Patents

Abstract

PURPOSE:To open the lower cover from a downstair side, and also, to constitute a ladder so as to be extensible, so that refuge and a rescue operation from a downward side to an upstair side can be executed. CONSTITUTION:On the floor surface side and the ceiling surface side of a containing frame 2 attached to an opening part 1a pierced in a slab 1 of a floor, a veranda, etc., the upper cover 3 and the lower cover 4 are attached pivotally so as to be openable and closeable independently. A ladder 6 folded and contained in the containing frame 2 is constituted so as to be extensible to the downstair floor or its vicinity. The ladder 6 is formed so that it can be drawn up and contained by a slow descending device 7 for constituting a ladder containing implement. In the containing frame 2, a free end part of the lower cover 4 is locked so as to be lockable and detachable, and also, the lower cover opening mechanism 20 having an opening operation transfer part interlocked with an operation only at the time of opening operation of the upper cover 3 is provided. A ladder extension chain 30 connected to an opening lever 8 of the slow descending device 7 is formed so that it can descend downstairs in connection with opening of the lower cover 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an evacuation device, and more particularly to an evacuation device which is attached to an opening formed in a slab such as a floor or a veranda so that a ladder can be extended and lowered from above and below. It relates to the device.

[0002]

2. Description of the Related Art Generally, a floor,
A storage frame that is attached to an opening formed in a slab such as a balcony, an upper lid and a lower lid that are pivotally attached to the floor surface side and the ceiling surface side of the storage frame, and are folded in the storage frame. It is known to include a ladder of, for example, a pantograph type, which is housed in a room and is extended to the floor below the floor or its vicinity when the upper lid and the lower lid are opened.

In consideration of privacy, the evacuation device constructed as described above generally has an interlocking structure in which the lower lid is opened along with the opening of the upper lid, and the lower lid is opened by operation from the downstairs. It is a structure that cannot be done. Therefore, for example, there is a problem that evacuation from the downstairs side such as the basement to the upstairs and rescue activities from the downstairs side of the rescuer cannot be performed sufficiently.

As means for solving this problem, for example,
The pull tab for opening is attached to one end of the rotary arm pivotally attached to the inner surface of the storage frame, the other end is engaged with the upper lid, and the pull tab for opening is pulled down to open the upper lid from the downstairs side. At the same time, it is conceivable that the lower lid is opened and the ladder is lowered.

[0005]

However, in the conventional evacuation device of this type, since the ladder has to be lowered with the opening of the lower lid, the ladder is placed on the upper surface of the lower lid and descends by its own weight. However, there is a problem in that it cannot be applied to a structure having a folding ladder that is stored without being placed on the lower lid. Further, since the upper lid and the lower lid are simultaneously opened from the downstairs side, considerable force is required, which may hinder quick rescue operations.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an evacuation device in which a lower lid can be opened from a lower floor side, a ladder can be extended, and an upper lid can be opened. Is.

[0007]

In order to achieve the above object, the evacuation device of the present invention comprises a storage frame attached to an opening formed in a slab such as a floor or a veranda, and a floor surface of the storage frame. Side and ceiling side pivotally attached to the side and the ceiling side, respectively, a ladder that is folded and stored in the storage frame and extends to or below the floor below, and a ladder that pulls up and stores the ladder. The storage device, a lower lid opening mechanism that releasably engages the free end portion of the lower lid, and has an opening operation transmission portion that interlocks with the operation only when the upper lid is opened, and the ladder storage device. And a ladder extending means that is connected to the ladder storage releasing section and hangs the ladder downstairs.

In the present invention, it is preferable that the ladder storage device be formed by a slow-moving device having a slow-moving function for controlling the extension / falling speed of the ladder.

Further, it is preferable that the lower lid opening mechanism is provided with an opening operation portion projecting to the downstairs side.

[0010]

According to the evacuation device of the present invention configured as described above, by opening the upper lid, the opening operation transmitting portion of the lower lid opening mechanism engages and operates, and accordingly the lower lid opens. The locking state between the opening mechanism and the free end of the lower lid is released, the lower lid is opened, and the ladder storage releasing portion of the ladder storage tool is released, whereby the ladder can be extended and lowered. Also, by operating the lower lid opening mechanism from the downstairs side,
The locked state between the lower lid opening mechanism and the free end of the lower lid is released, the lower lid is opened, and the ladder extending means disengages the ladder storage releasing portion of the ladder storage tool to extend and descend the ladder. can do. Therefore, it is possible to extend and descend the ladder from the lower floor to perform evacuation and rescue activities from the lower floor to the upper floor.

Further, by forming the ladder storage device by a slow-moving device having a slow-moving function for controlling the slow-moving speed of the ladder, the slow-moving speed of the ladder can be slowed down.
In particular, the operation of extending the ladder from the downstairs side can be made safe.

Further, by providing the lower lid opening mechanism with an opening operation portion projecting to the downstairs side, it is possible to easily open the lower lid from the downstairs side and open the upper lid to perform evacuation or rescue activities. You can

[0013]

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a perspective view of the evacuation device of the present invention in use, FIG. 2 is an enlarged cross-sectional perspective view of an essential part of FIG. 1, FIG. 3 is a side cross-sectional view of a ladder in a retracted state, and FIGS. A schematic side sectional view and a schematic front sectional view, respectively, in use are shown.

The evacuation device of the present invention has a storage frame 2 attached to an opening 1a formed in a slab 1 such as a floor or a veranda, and a floor and a ceiling of the storage frame 2, respectively. An upper lid 3 and a lower lid 4, a pantograph type ladder 6 that is folded and stored in the storage frame 2 and extends to a floor below or to the vicinity thereof, and an extension and descending speed of the ladder 6 is controlled. Mainly consists of a slow-moving device 7 that constitutes a ladder storage tool for pulling up and storing the ladder, a lower lid opening mechanism 20 provided in the storage frame 2, and a ladder extending means 30 that is connected to the ladder storage releasing portion of the slow-moving device 7. Parts are made up.

In this case, the ladder 6 includes a plurality of vertical bars 6a, 6
a ... A pair of telescopic bodies 6c, 6 pivotally attached to each other in a pantograph manner
A plurality of horizontal crosspieces 6b, 6b for stepping are provided between c at appropriate intervals, and are folded and stored in the storage frame 2 and can be extended to the floor below or in the vicinity thereof. It has become. A hoisting wire 13 is connected between the horizontal rod 6c horizontally mounted between the lower vertical rails 6a and a winding drum (not shown) of the slow mover 7.

As shown in FIG. 2, the storage frame 2 has four side wall members each having an outwardly facing upper flange 2a at its upper end and an outwardly facing L-shaped lower flange 2b at its lower end. 2c is framed in a rectangular shape, and an upper frame member 2d having a substantially crank-shaped cross section is mounted above the upper flange 2a. Further, a fixture 9 is fixed to the inner surface of the side wall member 2c on the ladder attachment side with fixing bolts 10a and nuts 10b. It is rotatably supported by a support bolt 11. When fixing the mounting tool 9, the ladder 6 that has been folded in advance can be mounted on the mounting tool 9, so that the ladder 6 can be mounted at the same time as the mounting operation of the mounting tool 9. The bracket 9 of the fixture 9
An inclined support piece 9b for abutting and supporting the uppermost vertical rail 6a of the ladder 6 is cut and raised at a, and a guide member 12 for maintaining the inclined state of the extended ladder 6 is pivotally supported at the lower end side. It is pivotally attached with a pin 9c. An L-shaped anchor member 2e is fixed to the outer surface of the side wall member 2c of the storage frame 2 by spot welding or the like.

The upper lid 3 is a left and right side wall member 2 of the storage frame 2.
The link mechanism 5 is attached to c so that the link mechanism 5 can be opened and closed. A handle portion 14 is fixedly provided on the inner surface of the central portion of the upper lid 3, and a lower lid opening mechanism 20 is provided on one side of the inner surface of the upper lid 3 on the free end side as described later.
An upper lid locking piece 25 that engages with is rotatably suspended (see FIG. 3).

A stay damper 15 is installed between the storage frame 2 and the lower lid 4, and the opening operation of the lower lid 4 is controlled by the stay damper 15. Further, a pulling chain 16 for pulling up when the opened lower lid 4 is closed is connected between the lower lid 4 and the storage frame 2.

As shown in FIGS. 2 and 5, the declining mechanism 7 is provided with a known braking mechanism coaxially with the winding drum of the winding wire 13 and mounted coaxially with the winding drum. The release lever 8 which is the ladder storage releasing portion is attached to the disengaged ratchet wheel 7a.
Has a ratchet mechanism that can engage in only one direction. In the decelerator 7 configured as described above, the ladder is extended and lowered by its own weight by pushing down the opening lever 8 to release the engagement with the ratchet wheel 7a. At this time, the extension and descending speed is controlled by the brake mechanism. To be done. Further, in order to store the extended ladder 6, the winding wire 13 is wound by rotating the winding drum by the winding handle 17 that is removably arranged on the inner surface of the storage frame 2, and the ladder 6 is removed. Can be stored.

On the other hand, the lower lid opening mechanism 20 is, as shown in FIG. 6, an arm pivotally attached to an arm mounting seat 26 fixed to the inner surface of the storage frame 2 so as to be vertically rotatable with a rotary shaft 21a. 21, a locking piece 22 for releasably locking a protruding pin 28 hanging from the arm 21 and protruding to the free end of the lower lid 4, and an opening operation attached to one end of the arm 21 for hanging. The pull tab 23 and the opening movement transmitting portion 24 that is releasably engaged with the locking surface 25a of the upper lid locking piece 25 that hangs on the lower surface of the upper lid 3 constitute the main part.

In this case, the arm 2 is mounted on the arm mounting seat 26.
1, a stopper piece 26a that abuts the lower end of the arm 1 is projected, and a spring 27 stretched between the arm attachment seat 26 and the opening movement transmitting portion side of the arm 21 causes the arm 21 to abut the stopper piece 26a at all times. The horizontal state is maintained. Therefore, when closing the lower lid 4,
The protruding pin 28 can hit the inclined guide surface 22a provided at the lower end of the locking piece 22 without shifting, and the lower lid 4 can be reliably stored. The opening operation pull tab 23 is pivotally attached to the arm 21 with a hinge pin 23a, and is provided at a lower end portion of the opening operation pull tab 23 protruding below the lower lid 4 when the lower lid 4 is closed. A hook member (not shown) is directly hooked to the dowel hole 23b to rotate the arm 21, or the arm 21 is rotated by pulling the opening chain 29 connected to the engaging hole 23b downward. The locked state between the locking piece 22 and the protruding pin 28 can be released. When the opening chain 29 is connected to the opening pull tab 23, the opening chain 29 may be inadvertently pulled when not in use and may enter from the lower floor to the upper floor. It is necessary to store the work chain 29 in a storage box or the like (not shown) provided on the ceiling side so as not to be tampered with.

The opening operation transmitting portion 24 of the lower lid opening mechanism 20.
As shown in FIGS. 3, 7, and 8, the upper lid locking piece 25 that engages with the upper lid 3 can be vertically rotated by the Z-shaped bracket 25b fixed to the lower surface of the upper lid 3 with the rotating shaft 25c. The lower surface of the opening movement transmitting portion 24 of the arm 21 is engaged with the hook-shaped engaging surface 25a provided at the lower end of the arm 21. Therefore, the arm 21 interlocked with the operation is engaged and rotated only when the upper lid 3 is opened, and the lower lid 4 is opened. The upper lid locking piece 25
An inclined surface 25d is provided at the lower end of the arm 25, and the inclined surface 25d allows the upper lid locking piece 25 to securely engage with the opening movement transmission portion 24 of the arm 21 by climbing over the arm 21. . The upper lid locking piece 25 abuts on the lower horizontal piece 25e of the bracket 25b to prevent rotation from the vertical position toward the outer side of the upper lid 3. Further, a weight 25f is fixed to the lower side of the upper lid locking piece 25, and when the upper lid 3 is closed by the weight 25f, the upper lid locking piece 25 hangs down by its own weight and surely the opening movement transmitting portion. Engage the underside of 24. Also, when the upper lid 3 is opened by the weight 25f, the upper lid locking piece 2
The weight 5 can be reliably rotated in the direction of the arrow shown in FIG. An inclined contact surface 25g is provided at the tip of the weight 25f so that the inclined contact surface 25g can contact the lower surface of the upper lid 3 when the upper lid 3 is opened and is in a vertical state. Has become.

As shown in FIGS. 6 and 7, the projecting pin 28 is projected by welding or the like on a bending member 18 having an inclined sliding surface 18a fixed to the bending edge 4a of the lower lid 4. There is. In this way, the folding sliding member 1 is attached to the bending member 18.
By providing 8a, the winding wire 13 for the ladder 6
It is possible to prevent the wire hook 13a for connecting the winding wire 13 from being caught on the bent edge 4a of the lower lid 4. A plastic lower lid cushioning member 19 is attached to the bent edge 4a of the lower lid 4 to prevent damage due to rubbing when the ladder 6 is moved up and down (see FIG. 6).

The ladder extending means 30 is composed of a ladder extending chain, one end of which is connected to an opening lever 8 that engages with the ratchet wheel 7a of the slow mover 7. This ladder extending chain 30 is placed on the lower lid 4 when the ladder is stored,
When the lower lid 4 is opened, it hangs downward. Therefore, the ladder extending chain 30 can be pulled from the downstairs side to release the engagement between the release lever 8 and the ratchet wheel 7a to extend and descend the ladder 6.

Next, the use operation and the storage operation of the evacuation device of the present invention will be described.

When operating from the upper side of the floor When the upper lid 3 is opened from the unused state shown in FIG. 9 (a), the engaging surface 25a of the upper lid engaging piece 25 is closed with the opening of the upper lid 3. The opening motion transmission portion 24 of the arm 21 of the opening mechanism 20 is pulled up, and the arm 21 is rotated clockwise in the drawing until it is disengaged. When the locking piece 22 ascends as the arm 21 rotates clockwise and the locking state with the protruding pin 28 is released, the lower lid 4 is opened by its own weight, as shown in FIG. 9B. Next, the release lever 8 of the slow-moving device 7 is pushed down to release the engagement with the ratchet wheel 7a, whereby the ladder 6 is extended and lowered, and it is possible to evacuate downstairs.

When operating from the downstairs side When pulling the open operation pull tab 23 downward from the unused state shown in FIG. 9A, the arm 21 rotates clockwise in the figure. When the locking piece 22 rises with the clockwise rotation of the arm 21 and the locking state with the protruding pin 28 is released,
Similar to the above operation, as shown in FIG. 9B, the lower lid 4 is opened by its own weight. Since the ladder extension chain 30 hangs downstairs as the lower lid 4 is opened, the ladder extension chain 30 is pulled to open the release lever 8 of the decelerator 7.
The ladder 6 is extended and lowered by releasing the engagement of the ratchet wheel 7a. It is possible to go upstairs from the lower floor side to the upper floor by pushing up the ladder 6 and pushing the upper lid 3 open, and it is possible to perform evacuation and rescue activities from the lower floor side to the upper floor side.

[0029] ◎ when accommodating the ladder 6 is extended when accommodating the ladder, first ladder 6 winding the hoisting wire 13 by rotating the drum for the winding with a winding handle 17 from the upstairs side Pull up. After that, when pulling up the pulling chain 16 and closing the lower lid 4, the projecting pin 28 hits the inclined guide surface 22a of the locking piece 22 and pushes the locking piece 22 against the resilient force of the spring 27. The protruding pin 28 is locked to the locking piece 22. And
When the upper lid 3 is closed, the operation of storing the ladder 6 is completed.

Although the ladder 6 is of the pantograph type in the above embodiment, the ladder does not necessarily have to be of the pantograph type, but may be of the telescopic type.

[0031]

As described above, according to the evacuation device of the present invention, which is configured as described above, the following effects can be obtained.

1) According to the evacuation device according to claim 1, since the lower lid can be opened from the downstairs side and the ladder can be extended and lowered, it is possible to perform evacuation and rescue activities from the downstairs side to the upstairs side. can do. Also, since the lower lid opening mechanism can be installed in a narrow space inside the storage frame, the evacuation device does not need to be unnecessarily large, and it is easy to use an existing upper and lower lid interlocking type. Can be modified to.

2) According to the second aspect of the evacuation device, since the ladder storage device is formed by a slow down device having a slow down function for controlling the slow down speed of the ladder, the slow down speed of the ladder is slowed down. In particular, the ladder extension operation from the downstairs side can be made safe.

3) According to the evacuation device of the third aspect, since the lower lid opening mechanism is provided with the opening operation portion projecting to the downstairs side, the lower lid is easily opened from the downstairs side and the upper lid is opened. It is possible to perform evacuation and rescue activities quickly.

[Brief description of drawings]

FIG. 1 is a perspective view showing a use state of an evacuation device of the present invention.

FIG. 2 is an enlarged sectional perspective view of a main part of FIG.

FIG. 3 is a sectional view showing a stored state of the ladder in the present invention.

FIG. 4 is a schematic side sectional view showing a use state of the evacuation device.

5 is a front sectional view of FIG.

FIG. 6 is a perspective view showing a lower lid opening mechanism in the present invention.

FIG. 7 is a sectional view showing an engaged state of the upper lid and the lower lid and the lower lid opening mechanism in the present invention.

FIG. 8 is a perspective view showing the relationship between the upper lid locking piece and the lower lid opening mechanism in the present invention.

FIG. 9 is an explanatory diagram showing an operating mode of a lower lid opening mechanism.

[Explanation of symbols]

 1 Slab 1a Opening 2 Storage Frame 3 Upper Lid 4 Lower Lid 6 Ladder 7 Slower (Ladder Storage Tool) 8 Opening Lever (Ladder Storage Release) 20 Lower Lid Opening Mechanism 21 Arm 22 Locking Piece 23 Opening Puller (Opening operation part) 24 Opening motion transmitting part 25 Upper lid locking piece 25a Locking surface 28 Projecting pin 30 Ladder extension chain (ladder extension means)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroko Kobayashi 1-1-1, Uchisaiwaicho, Chiyoda-ku, Tokyo Inside Naka Technical Research Institute Co., Ltd.

Claims (3)

[Claims] 1. A storage frame attached to an opening formed in a slab such as a floor or a veranda, and an upper lid pivotally attached to the floor side and the ceiling side of the storage frame so as to be independently openable and closable. And a lower lid, a ladder that is folded and stored in the storage frame and that extends to or near the floor below, a ladder storage device that pulls up and stores the ladder, and a free end portion of the lower cover. The lower lid opening mechanism having an opening operation transmitting portion that is detachably locked and that interlocks with the operation only when the upper lid is opened, is connected to the ladder storage releasing portion of the ladder storage tool to connect the ladder. An evacuation device comprising a ladder extending means that hangs downstairs. 2. The evacuation device according to claim 1, wherein the ladder storage device is formed by a slow-moving device having a slow-moving function for controlling the extension / falling speed of the ladder. 3. The evacuation device according to claim 1, wherein the lower lid opening mechanism is provided with an opening operation portion projecting to the downstairs side.