JP3194110B2 - Evacuation device - 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 device
In, and is more particularly floors, on Evacuation apparatus which the extendable drop ladder from the upper and lower attached to an opening formed in the slab veranda or the like.

[0002]

2. Description of the Related Art In general, evacuation devices of this type include floors,
A storage frame attached to an opening formed in a slab such as a veranda, an upper lid and a lower lid pivotally attached to the floor side and the ceiling side of the storage frame, respectively, and are folded in the storage frame. It is known to include a ladder of, for example, a pantograph type, which is stored and extended to or near the floor below when the upper and lower lids are opened.

[0003] The evacuation device configured as described above has an interlocking structure in which the lower lid is generally opened with the opening of the upper lid in consideration of privacy, and the lower lid is opened by an operation from below. It has a structure that cannot be done. Therefore, there has been a problem that evacuation from a lower floor of a basement or the like to an upper floor or a rescue operation of a rescuer from a lower floor cannot be sufficiently performed.

[0004] As means for solving this problem, for example,
Attach an opening tab to one end of a rotating arm pivotally attached to the inner surface of the storage frame, engage the other end with the upper lid, and lower the opening tab to open the upper lid from the lower floor. At the same time, a structure in which the lower lid is opened and the ladder is lowered can be considered.

[0005]

However, in this type of conventional evacuation device, the ladder must be lowered with the opening of the lower lid, and the ladder is placed on the upper surface of the lower lid and descends by its own weight. However, there is a problem that the method cannot be applied to a structure having a foldable 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, a considerable amount of force is required, and there is a possibility that quick rescue operations may be hindered.

The present invention has been made in view of the above circumstances, and has an evacuation system in which a lower lid and an upper lid can be opened from the downstairs side.
It is intended to provide a device.

[0007]

In order to achieve the above object, an evacuation apparatus according to 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. An upper lid and a lower lid pivotally attached to the side and the ceiling side so as to be openable and closable, and when folded and stored in the storage frame and the upper and lower lids are opened, the lower floor or in the vicinity thereof An evacuation device having a ladder extending up to the base is provided with a locking piece for removably locking the free end of the lower lid on an arm rotatably pivoted to the inner surface of the storage frame. Hanging down, at one end of the arm, when the lower lid is closed, hanging down an opening operation part projecting downward,
At the other end of the arm, an opening operation transmitting portion that engages with the upper lid only when the upper lid is opened is formed (claim 1) .

In the present invention, a stopper piece for horizontally locking the arm is projected from the storage frame side, and an elastic force is applied between the storage frame side and the arm so as to constantly press the arm toward the stopper side. It is preferable to provide an elastic means for urging (claim 2) . In this case, the elastic means can be formed by, for example, a compression spring or a tension spring.

Further , the evacuation device according to the present invention is a ladder.
It is preferable to have a ladder storage device for pulling up and storing
(Claim 3) Further, the ladder storage device is extended and lowered.
Formed with a slowing device that has a slowing function that controls the lowering speed
Is more preferable (claim 4) .

Further , the evacuation device according to the present invention is a ladder.
Connect to the ladder storage release part of the storage device and drop the ladder downstairs
It is preferable to provide a ladder extending means (claim 5) .

[0011]

The evacuation device of the present invention configured as described above
According to this, when the upper lid is opened, the opening operation transmitting portion at the end of the arm is engaged to operate, and accordingly, the locking piece hanging down to the arm and the free end of the lower lid are locked. The state is released and the lower lid is opened. Further, by pulling down the opening operation portion hanging down from the downstairs to the arm, the locking state of the locking piece hanging down to the arm and the free end of the lower lid is released, and the lower lid is opened. Therefore, since the upper lid does not operate when the lower lid is opened, the lower lid can be easily and reliably opened without requiring a strong force, and the ladder is extended and descended from the downstairs to descend from the downstairs. Evacuation and rescue operations can be performed upward.

Further, a stopper piece for horizontally locking the arm is protrudingly provided on the storage frame side, and between the storage frame side and the arm,
By disposing the elastic means for urging the elastic force so as to always press the arm to one side of the stopper, the upper and lower lids can be reliably opened while the arm is always kept in a constant state. And when closing the lower lid after storing the ladder, the locking piece and the free end of the lower lid can be engaged against the elastic force of the elastic means, and the lower lid can be reliably closed. it can.

[0013] A ladder storage device for raising and storing the ladder.
This ladder storage device controls the elongation and descent speed of the ladder
By forming a relaxation device having a relaxation function
This allows the ladder to extend and descend slowly.
The ladder extension operation from the downstairs can be safely performed
You .

[0014] Further , the ladder storage device is connected to the ladder storage release portion.
Ladder extension means for hanging the ladder downstairs
With the lower lid open from the lower floor, the ladder extends
Operate the means to release the ladder storage release part of the ladder storage tool,
The ladder can be extended and lowered .

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a perspective view of an evacuation device having an upper and lower lid opening mechanism according to the present invention in use, FIG. 2 is an enlarged cross-sectional perspective view of a main part of FIG. 1, and FIG. Figure,
4 and 5 show a schematic side sectional view and a schematic front sectional view in a used state, respectively.

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 is pivotally mounted on the floor side and the ceiling side 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 or near the lower floor, and controls the elongating and descending speed of the ladder 6. Ladder storage for raising and storing the ladder
A slow descending unit 7 constituting the ingredients, the lower lid-opening mechanism 20 having a housing frame 2 of the arm 21 for rotatably pivoted by the opening operation of the inside surface, connected to the ladder housing release portion of the slow descending device 7 The main part is constituted by the ladder extending chain 30 (ladder extending means) .

In this case, the ladder 6 includes a plurality of vertical rails 6a, 6
a ... a pair of telescoping bodies 6c, 6 pivotally connected in a pantograph manner
A plurality of cross rails 6b, 6b,... for stepping are placed between them at appropriate intervals, folded and stored in the storage frame 2, and can be extended to the floor below or near the floor. It has become. A hoisting wire 13 is connected between a horizontal rod 6c suspended between the vertical bars 6a on the lower side and a winding drum (not shown) of the relaxer 7.

As shown in FIG. 2, the storage frame 2 has an upper flange 2a at the upper end and an outer L-shaped lower flange 2b at the lower end. 2c is framed in a rectangular shape, and has a structure in which an upper frame member 2d having a substantially crank-shaped cross section is mounted above the upper flange 2a. An attachment 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 pivotally supported by a support bolt 11. When the fixture 9 is fixed, by attaching the ladder 6 folded in advance to the fixture 9, the ladder 6 can be attached simultaneously with the fixing work of the fixture 9. In addition, the bracket 9 of the mounting fixture 9
a is provided with an inclined support piece 9b for abutting and supporting the uppermost vertical rail 6a of the ladder 6, and a guide member 12 for maintaining the extended ladder 6 in an inclined state is pivotally supported at the lower end. It is pivotally mounted with a pin 9c. An L-shaped anchor member 2e is fixed to the outer side surface of the side wall member 2c of the storage frame 2 by spot welding or the like.

The upper lid 3 is provided on the left and right side wall members 2 of the storage frame 2.
The link mechanism 5 is attached so as to be openable and closable by the link mechanism 5 attached thereto, and is held substantially vertically in an open state. A handle portion 14 is fixedly provided substantially at the center inside surface of the upper cover 3, and a lower cover opening mechanism 20 is provided on one side of the free end side inner surface of the upper cover 3 as described later.
The upper lid locking piece 25 that engages with the upper lid is rotatably suspended (see FIG. 3).

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

As shown in FIG. 2 and FIG. 5, the slower 7 has a known brake mechanism coaxially with the winding drum of the winding wire 13 and is mounted coaxially with the winding drum. Release lever 8 which is a ladder storage release part on the set hook wheel 7a
Has a ratchet mechanism that can engage in only one direction. When the release lever 8 is pressed down to release the engagement with the ratchet wheel 7a in the thus configured lifting device 7, the ladder extends and descends by its own weight. At this time, the elongating and descending speed is controlled by the brake mechanism. Is done. A ladder extending chain 30 is connected to the opening lever 8,
By pulling the ladder extension chain 30 downward, the engagement between the release lever 8 and the ratchet wheel 7a is released, and the ladder 6
Is extended and lowered by its own weight. In order to store the extended ladder 6, the winding wire 13 is wound by rotating the winding drum by a hoisting handle 17 which is detachably mounted on the inner surface of the storage frame 2, and the ladder 6 is wound. Can be stored.

On the other hand, as shown in FIG. 6, the lower lid opening mechanism 20 has an arm mounted on an arm mounting seat 26 fixed to the inner surface of the storage frame 2 so as to be vertically rotatable about a rotation shaft 21a. A locking piece 22 for detachably locking a protruding pin 28 which is suspended from the arm 21 and protrudes from the free end of the lower lid 4, and an opening operation part which is attached to one end of the arm 21 and which is suspended The main part is composed of a puller 23 which is an opening movement transmitting portion 24 which is detachably engaged with a locking surface 25a of an upper lid locking piece 25 which is hung on the lower surface of the upper lid 3.

In this case, the arm 2 is
Are stopper piece 26a is projected to the first lower end and abuts, against the constant arm 21 stopper piece 26a by the tension spring 27 is stretched between the opening movement transmitting portion of the arm mounting seat 26 and the arm 21 The horizontal state is maintained by contact. Therefore, when closing the lower lid 4, the projecting pin 28 hits the inclined guide surface 22 a provided at the lower end of the locking piece 22 without shifting, so that the lower lid 4 can be securely stored. In this case, instead of the tension spring 27, a compression spring may be contracted between the stopper piece 26a and the handle 23 side of the arm 21.

The handle 23 is pivotally attached to the arm 21 with a hinge pin 23a, and protrudes downward from the lower cover 4 when the lower cover 4 is closed. The arm 21 is rotated by directly hooking a hook member (not shown) on the
The arm 21 is rotated by pulling down the opening chain 29 connected to b, and the locked state of the locking piece 22 and the protruding pin 28 can be released. In the case where the opening chain 29 is connected to the opening operation tab 23, the opening chain 29 may be inadvertently pulled and invaded from the lower floor to the upper floor when not in use.
It is necessary to store the opening chain 29 in a storage box or the like (not shown) provided on the ceiling side so as not to be tampered.

Opening operation transmitting section 24 of lower lid opening mechanism 20
3, 7 and 8, the Z-shaped bracket 25b fixed to the lower surface of the upper lid 3 is rotatable in the vertical direction with a rotation shaft 25c. The lower surface of the opening operation transmitting portion 24 of the arm 21 can be engaged with a hook-shaped engaging surface 25a provided at the lower end thereof. Therefore, only when the upper lid 3 is opened, the arm 21 that is interlocked with the operation is engaged and rotates to open the lower lid 4. The upper lid locking piece 25
An inclined surface 25d is provided at a lower end of the arm 21. The inclined surface 25d allows the upper lid locking piece 25 to reliably engage with the opening operation transmitting portion 24 of the arm 21 over the arm 21. . The upper lid locking piece 25 is in contact with the lower horizontal piece 25e of the bracket 25b, so that rotation from the vertical position to the outside of the upper lid 3 is prevented. 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 the opening operation transmitting section is securely inserted. 24. When the upper lid 3 is opened by the weight 25f, the upper lid locking piece 2
5 can be reliably rotated by its own weight 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 cover 3 when the upper cover 3 is opened and is in a vertical state. Has become.

As shown in FIGS. 6 and 7, the projecting pin 28 is formed by welding or the like on the bending member 18 having the inclined sliding surface 18a fixed to the bending edge 4a of the lower lid 4. I have. Thus, the inclined sliding surface 1 is formed on the bending member 18.
8a, the wire 13 for hoisting the ladder 6 is provided.
It is possible to prevent the wire hook 13a connecting the winding wire 13 from being hooked on the bent edge 4a of the lower lid 4. Further, a plastic lower lid buffer member 19 for preventing damage due to abrasion when the ladder 6 is moved up and down is attached to the bent edge 4a of the lower lid 4 (see FIG. 6).

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

[0029] ◎ When the non-use state shown if Figure 9 (a) operating from the upstairs side to open the upper lid 3, the engaging surface 25a is lower lid of the upper lid locking pieces 25 with the opening of the upper lid 3 The opening operation transmitting section 24 of the arm 21 of the opening mechanism 20 is pulled up, and the arm 21 is rotated clockwise in the figure until it is released. When the locking piece 22 is raised with the clockwise rotation of the arm 21 and the locking state with the protruding pin 28 is released, as shown in FIG. 9B, the lower lid 4 is opened by its own weight. Next, if the release lever 8 of the elevating device 7 is pushed down to release the engagement with the ratchet wheel 7a, the ladder 6 is extended and lowered, and can be evacuated downstairs.

When operating from the downstairs side When the pulling handle 23 is pulled downward from the non-use 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,
Similarly to the above operation, as shown in FIG. 9B, the lower lid 4 is opened by its own weight. As the lower lid 4 is opened, the ladder extension chain 30 hangs downstairs, so that the ladder extension chain 30 is pulled to release the release lever 8 of the relaxer 7.
The ladder 6 is extended and lowered by releasing the engagement between the wheel and the ratchet wheel 7a. The ladder 6 can be pushed up to open the upper lid 3 to get out of the lower floor to the upper floor, and can perform evacuation and rescue operations from the lower floor to the upper floor.

When storing the extended ladder 6, when storing the elongated ladder 6, first, the winding drum is rotated by the hoisting handle 17 from the upper floor, and the hoisting wire 13 is wound, and the ladder 6 is retracted. Pull up. Thereafter, when the lower lid 4 is closed by pulling the pulling chain 16, the protruding pin 28 hits the inclined guide surface 22 a of the locking piece 22 and pushes the locking piece 22 against the elastic force of the spring 27. The protruding pin 28 is locked by the locking piece 22. And
When the upper lid 3 is closed, the storing operation of the ladder 6 is completed.

In the above embodiment, the case where the ladder 6 is of the pantograph type has been described. However, the ladder does not necessarily have to be of the pantograph type, but may be of a telescopic type.

[0033]

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

According to the first aspect of the present invention, the arm which is rotatably pivotally attached to the inner surface of the storage frame is provided with the locking piece for locking the free end of the lower lid so as to be detachable. When the lower lid is closed, an opening operation part protruding downward is hung down at one end of the arm, and the other end of the arm is engaged with the upper lid only when the upper lid is opened. Since the opening operation transmitting portion is formed, the upper and lower lids can be opened from the lower floor, and evacuation and rescue operations from the lower floor to the upper floor can be performed. Moreover, the upper and lower lids can be easily and reliably opened without requiring a strong force.

2) According to the evacuation device according to the second aspect, a stopper piece that horizontally locks the arm protrudes from the storage frame side,
Since the elastic means for urging the elastic force to always press the arm to one side of the stopper is provided between the storage frame side and the arm, the upper and lower lids can be reliably opened and the ladder is provided. The lower lid can be securely closed during storage, and handling can be facilitated.

[0036] 3) According to the evacuation device according to claims 3 and 4,
If the ladder is equipped with a ladder storage
Ladder storage device has a slowing down function that controls the elongation and descent speed of the ladder.
Since the ladder is formed by the elevating device provided,
Can be performed slowly, especially the ladder extension from the downstairs side
Operation can be secure .

4) According to the evacuation device according to the fifth aspect, the ladder
Connect the ladder storage release part of the child storage device and drop the ladder downstairs
Ladder extension means, so that the lower lid is
In the open state, operate the ladder extension means to
Release the ladder storage release part and extend and descend the ladder.
I can .

[Brief description of the drawings]

FIG. 1 is a perspective view showing a use state of an evacuation device having an upper and lower lid opening mechanism according to 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 a ladder according to the present invention.

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

FIG. 5 is a front sectional view of FIG. 4;

FIG. 6 is a perspective view showing the relationship between the upper and lower lids and the opening mechanism in the present invention.

FIG. 7 is a cross-sectional view showing an engagement state between the upper and lower lids and the opening mechanism in the present invention.

FIG. 8 is a perspective view showing a relationship between an upper lid and an arm according to the present invention.

FIG. 9 is an explanatory diagram showing an opening operation mode of an upper lid and a lower lid.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Slab 1a Opening 2 Storage frame 3 Upper lid 4 Lower lid 6 Ladder 7 Ladder (ladder storage device) 8 Release lever (ladder storage release part) 21 Arm 22 Locking piece 23 Puller (opening operation part) 24 Release operation Transmission part 25 Upper lid locking piece 25a Locking surface 26a Stopper piece 27 Tension spring (elastic means) 28 Projection pin 30 Ladder extending chain (ladder extending means)

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Hiroko Kobayashi Naka Technical Research Institute, 1-1-1, Uchisaiwai-cho, Chiyoda-ku, Tokyo (56) References JP-A-59-144463 (JP, A) Sho-59-170391 (JP, A) JP-A 4-62800 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A62B 5/00 E06C 9/06

Claims (5)

(57) [Claims] 1. A storage frame attached to an opening formed in a slab such as a floor or a veranda, and an upper lid and a lower lid pivotally attached to the floor and the ceiling of the storage frame so as to be openable and closable. ,
A ladder that is folded and stored in the storage frame and has a ladder extending to or near the floor below when the upper and lower lids are opened. To the arm that is pivotally attached to
A hanging piece for detachably engaging the free end of the lower lid is hung down, and an opening operation part protruding downward when the lower lid is closed is hung on one end of the arm, On the other end of the arm, an upper opening formed with an opening operation transmitting portion that engages with the upper lid only when the upper lid is opened ,
An evacuation device having a lower lid opening mechanism. 2. A stopper piece for horizontally locking an arm is protrudingly provided on the storage frame side, and an elastic force is urged between the storage frame side and the arm to constantly press the arm toward the stopper one side. 2. The evacuation system according to claim 1, wherein an elastic means is provided.
Place. 3. A ladder storage device for raising and storing a ladder.
The evacuation device according to claim 1, wherein the evacuation device is provided. 4. The ladder storage device controls the ladder extension / descent speed.
It must be formed with a slowing device with a slowing function to control
The evacuation device according to claim 3, characterized in that: 5. A ladder storage device connected to a ladder storage release portion.
It has ladder extension means for hanging the ladder downstairs
The evacuation device according to claim 3, characterized in that: