JPS5942048Y2 - evacuation device - Google Patents

Description

[Detailed description of the invention] This invention relates to a so-called floor-embedded evacuation device in which a hole drilled in a slab such as a floor or balcony is opened and closed with a lid, and an evacuation device is installed inside this hole. For example, in the event of an emergency such as a fire, it temporarily prevents the lid from suddenly opening, preventing evacuees from falling through the hole, and also prevents children from opening the lid during normal times. The purpose of this is to prevent children from falling into accidents.

Generally, this type of evacuation device is used to allow evacuees to evacuate to a safe location downstairs by extending the evacuation equipment downstairs when the lid is opened in the event of an emergency such as a fire.

Therefore, there is a need to perform each operation of the device quickly, and one example of this is a device incorporating a mechanism that opens the lid suddenly at a certain opening angle or more.

However, in an evacuation device having this mechanism, it must be taken into consideration that there is a risk that an evacuee may fall downstairs due to the reaction when the lid is opened.

In order for this type of evacuation device to be able to operate immediately, it is necessary to keep the top and surroundings of the lid clear of obstacles, making it easy for children to play with it. .

Therefore, under normal circumstances, if a child etc. opens the lid by mischief,
There is also the danger of falling through the opening.

This idea was created in view of the above circumstances, and consists of a storage case having an opening on the floor side and an opening on the ceiling side, and a lid body (upper lid) that is pivoted to the storage case so as to open and close the storage case. A locking device is interposed between the VC'j? The purpose of the present invention is to provide an evacuation device with a danger prevention mechanism that prevents a child from opening a cover body and prevents a child from falling.

Examples of this invention will be described below based on the drawings.

Figure 1 shows an example of an evacuation device equipped with a locking device according to this invention, in which an approximately rectangular storage case 2 is fitted and fixed into a hole 1 drilled in a slab AK of a floor, balcony, etc. An upper cover 3a and a lower cover 3b are pivotally connected to the floor opening 2a and the ceiling opening 2b of the storage case 2 so as to be openable and closable, respectively. One end of the base of the evacuation device 5 is pivotally connected.

This evacuation device 5 includes a plurality of hollow sliding rods 5 having sequentially different diameters.
a, 5a, . After confirming the safety of the downstairs, a ratchet mechanism (not shown) is released to extend and lower the stairs.

A link device 6 , which opens and closes the upper lid 3 a and the lower lid 3 b in conjunction with each other to maintain the upper lid 3 a in an open state, is connected between the hollow sliding rod 5 a located at the top and the side wall of the storage case 2 . When the evacuation device 5 is stretched and lowered by the stretched wire rope, it prevents the evacuation device 5 from swinging in the left and right direction, and provides a slight inclination angle of the evacuation device 5T/c to facilitate the descent of the evacuee. It is something that makes you familiar.

In the evacuation device configured in this way, this invention
The device is characterized by being equipped with a locking device that temporarily prevents the top cover 3a from being opened suddenly and prevents the top cover 3a from being opened due to mischief by children, etc., and its mode is shown in FIG. or as shown in FIG.

2 to 5 show a first embodiment of this invention, in which a locking device 8 includes a hook 9 projecting from the inner wall surface of the storage case 2 and a hook 9 projecting from the back surface of the free end side of the top lid 3a. The claw body 10 has one end pivotally attached to a bracket 12 protruding from the back surface of the upper lid 3a with a pivot 11, and an elastic member wrapped around the pivot portion of the claw body 10. By means of a return spring 13, the other end is hooked to the part 10.
a is always biased in a direction in which it can engage with the hook 9,
On the pivoting side of the claw body 10, the claw body 10 is rotated (counterclockwise in the drawing) against the elastic force of the return spring 13, that is, the claw body 10 is not hooked. A lever 10b, which is a means for releasing the locked state between the hook 9 and the hook 10a, is provided in a protruding manner.

Among them, 14 is a backing interposed between the storage case 2 and the upper lid 3a, and in this case, it is attached to the storage case 2 side.

Next, the operation mode of the locking device 8 configured as described above will be explained. First, when the top cover 3a is opened from the closed state shown in FIG. The upper lid 3 is moved to a certain position, that is, the upper lid 3 is opened halfway.
When it reaches a position where it cannot be easily penetrated through the gap between A and the storage case 2, the hook portion 10a of the claw body 10 engages with the hook 9 and the upper cover 3a is opened, as shown in FIG. stops.

Therefore, in a normal lid opening operation, the upper lid 3a is opened only in this state 1.

In order to further open the top cover 3a, the lever 10b of the claw body 10 is pulled up toward the top cover 3a, and the hook 9 and the claw body 10 are released from the hooked portion 10a, and then the top cover 3 is opened again.
a can be opened.

When the lever 10b is released after opening, the claw body 10 rotates clockwise due to the elastic force of the return spring 13 and returns to its original position.

At this time, the stopper portion 10c of the claw body 10 on the side facing the lever 110b comes into contact with the back surface of the upper lid 3a, and further rotation is prevented.

Further, when the upper lid 3a is closed from the open state, the tapered surface 10d provided at the lower end of the claw body 10, that is, the lower surface of the hook portion 10a.
comes into contact with the hook 9, and when the upper cover 3a is further closed, the claw body 10 is moved downward by the hook 9 while rotating counterclockwise against the elastic force of the return spring 13, and is closed.

Of course, at this time, when the contact between the tapered surface 10d of the hook portion 10a and the hook 9 is released, the claw body 10 returns to its original position.

6 and 1 show a second actual case of this invention. In the first embodiment, the length of the claw body 10 is limited to the length that can be stored in the storage case 2. This is a case where the opening angle has been determined and consideration is given to allowing further opening.

That is, the free end of the hook 9', one end of which is rotatably pivoted to a platen 16 protruding from the upper end of the storage case 2 with a pivot 15, is engaged with the hook part 10a of the claw body 10. By forming the claw body 10 and the hook 9
The opening angle can be widened depending on the length of the opening.

In this second embodiment, the L/bar iob is used as the claw body 1.
0 is provided on the free end side, that is, the hook is provided on the part 10a side, and the shape of the claw body 10 is slightly changed. The explanation is omitted.

Next, to explain the operation mode of the second embodiment, when the upper lid 3a is opened from the closed state shown in FIG.
The hook 10a is caught on the hook 9', and when it is further released, the hook 9' also rotates in accordance with the movement of the claw body 10.
The pivot 11 of the claw body 10, the pivot 15 of the hook 9', and the claw body 1
0 and the locking part of the hook 9' are almost in a straight line (
(see FIG. 1), the upper lid 3a is locked and further opening of the upper lid 3a is prevented.

Furthermore, when the lever 10b is pulled up towards the top cover 3a in this locked state, the hook portion 10a is released from the hook 9' and the top cover 3a is opened again.

Further, when the upper lid 3a is closed, the claw body 10 returns to its original position by performing the same operation as in the first embodiment described above.

No, in the above two embodiments, the hook 9 or 9 is attached to the storage case 2.
', and the upper cover 3aK is shown with a claw body 10 that engages with the hook 9 or 9', but the attachment is done by reversing the position, that is, by attaching the claw body to the storage case 2. ,
A similar effect can be obtained by providing a hook on the top lid, which is naturally included in the gist of this invention.

Furthermore, it goes without saying that this invention can be applied to all kinds of floor-embedded evacuation devices.

As explained above, according to the evacuation device of this invention,
Since the top cover opens in two stages, in the event of an emergency such as a fire, the sudden opening of the top cover is temporarily blocked to prevent evacuees from falling down the stairs from the power gate. In normal times, even if a child or the like tries to open the top cover by mischief, the opening can be prevented, thereby preventing the child from falling down.

Furthermore, by relaxing the sudden opening of the top lid,
It has excellent effects such as being able to prevent damage to lids, evacuation equipment, etc., and its utility value is remarkable.

[Brief explanation of drawings]

Figure 1 is a side sectional view showing an example of the evacuation device equipped with a locking device according to this invention when in use, and Figures 2 to 5
The figure shows the first embodiment of this invention, Figure 2 is an enlarged sectional view of the main part when the lid is closed, and Figure 3 is the ff1-III of Figure 2.
4 and 5 are enlarged sectional views of essential parts showing the state in the middle of locking and opening, respectively, and FIGS. 6 and 7 show a second embodiment of this invention. The 6th
The figure is an enlarged sectional view of the main part when the lid is closed, and FIG. 1 is an enlarged sectional view of the main part when the lid is locked. 1...hole, 2...storage case, 2a
......Floor side opening, 2b...Ceiling side opening, 3a...Top cover, 3b...Bottom cover, 5.
... Evacuation equipment, 8 ... Locking device, 9.9
'...Fukuku 10...Claw body, 10a
... Song quotation is part, 10b... Lever (lock release means), 10c... Stopper part, 11, 15
... Pivot, 13 ... Return spring (elastic means).

Claims (1)

[Scope of Claim for Utility Model Registration] l A storage case having an opening on the floor side and an opening on the ceiling side, an upper lid pivotably attached to the storage case so as to open and close at least the floor side opening, and an inside of the storage case. An evacuation device that prevents evacuation equipment from extending and descending downstairs when the upper lid is opened, the evacuation device comprising: a hook protruding from one of the storage case and the upper lid; and a hook protruding from the other. The locking device is provided with a locking device which is rotatably pivotally mounted and includes a claw body which engages with the hook and is biased in the direction 5 by an elastic means, and when in use, the top cover is opened in the fixed position 1. The evacuation device is characterized in that the claw body is engaged and locked by a hook when the lid is closed, and the upper cover can be opened by appropriately releasing the engagement between the claw body and the hook using a lock release means. . 2 The lock release means is formed by a lever provided on the claw body, and by operating this lever against the elastic means, the lock between the hook and the claw body can be released.
The evacuation device according to claim 1 of the utility model registration claim. 3 Utility model registration claim 1 that includes the hook being rotatably protruded from the storage case or the top lid.
Evacuation equipment as described in section.