JP4871982B2 - Elevator ventilation equipment - Google Patents

Description

  The present invention relates to an elevator ventilator for an elevator that controls the atmospheric pressure in a passenger compartment.

In recent years, with the increase in the number of buildings, there is a demand for higher speed elevators. In such a high-speed elevator, the atmospheric pressure change per unit time is intense, the total amount of atmospheric pressure change is large, and passengers often feel an ear-closed feeling due to large atmospheric pressure fluctuations.
In order to reduce the ear-closed feeling, an air pressure control device that controls the air pressure inside the passenger compartment according to the air pressure outside the passenger compartment has been proposed.
Here, in order to change the air pressure inside the passenger compartment to an optimum state, it is necessary to improve the airtightness of the passenger compartment.

However, increasing the airtightness of the passenger compartment, on the other hand, in the event of an emergency such as a power outage, the passenger compartment itself has a highly airtight structure, so the passenger compartment cannot be ventilated. Passengers confined in can be deficient in oxygen.
Therefore, when the passenger compartment has a highly airtight structure, it is necessary to provide a ventilating means that can be automatically opened and closed with high safety when a power failure occurs due to an emergency signal.

As a technique for automatically opening a ventilation window at the time of such a power failure, conventionally, as in the “elevator ventilation device” of Patent Document 1, for example, the ventilation window is normally locked in a closed state by a locking device, and ventilation is performed at the time of a power failure. A method has been proposed in which a ventilation window is opened by a weight suspended from an end of a wire connected to the window.
Or when electricity returns, as an automatic door closing technology for ventilation windows, for example, as in the “elevator cab” of Patent Document 2, the ventilation window is always kept closed by an electromagnet, and a motor is used when electricity is restored. A method of closing the ventilation window has been proposed.

Japanese Patent No. 4270812 (paragraphs 0028 and 0029, FIG. 2, etc.) JP-A-10-53383 (paragraphs 0012 to 0017, FIGS. 2 to 4 etc.)

However, in an elevator having an air pressure control device, there is a pressure difference between the inside and outside of the passenger compartment. Windows can be opened and the elevator must be stopped suddenly.
In other words, in an elevator that needs to control the air pressure in the passenger compartment, the passenger compartment in the passenger compartment in the passenger compartment may be deficient during a power outage, while improving the sealing performance of the passenger compartment.

Therefore, there is a need for a ventilation means that can always reliably keep the car cabin tightly sealed and can be automatically opened and closed at the time of power failure and electricity recovery.
In view of the above situation, an object of the present invention is to provide an elevator ventilator that can automatically open and close a ventilation window opening and closing member and securely lock the closed ventilation window opening and closing member.

  In order to achieve the above object, an elevator ventilator according to the present invention is an elevator ventilator for an elevator equipped with an air pressure control device for controlling the air pressure in a passenger compartment, and is provided in the passenger compartment and ventilates when a power failure occurs. Therefore, the ventilating window opening / closing member that is opened, the solenoid for locking that locks the ventilating window opening / closing member that is normally energized and is closed by the operation of the shaft, and the ventilation window opening / closing member are closed. An operation switch for energizing the locking solenoid when operated, a non-locking elastic material for retracting the shaft of the locking solenoid when the power is cut off, and a door opening force that provides a door opening force for the ventilation window opening and closing member An elastic material and a ventilation window closing means for closing the ventilation window opening and closing member when returning to the normal state are provided.

  As described above, according to the present invention, it is possible to realize an elevator ventilator that can automatically open and close the ventilation window opening and closing member and securely lock the closed ventilation window opening and closing member.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a passenger car equipped with an elevator ventilation device for an elevator according to a first embodiment of the present invention. It is an A direction arrow directional view of FIG. 1 which shows the internal structure of the elevator ventilation apparatus provided in the passenger compartment of 1st Embodiment. It is a perspective view which shows a passenger car provided with the elevator ventilation apparatus of 2nd Embodiment which concerns on this invention. It is a B direction arrow directional view of FIG. 3 which shows the internal structure of the elevator ventilation apparatus provided in a passenger compartment.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
(First embodiment)
FIG. 1 is a perspective view showing a passenger compartment 1 provided with an elevator ventilation device 8 for an elevator E according to a first embodiment of the present invention. In addition, the elevator E shown in FIG. 1 omits the components other than those described in the first embodiment.
The elevator E according to the first embodiment includes a passenger compartment 1 that lifts and lowers passengers, and a blower 7 that controls an atmospheric pressure inside the passenger compartment 1.

The passenger compartment 1 has a rectangular parallelepiped shape that is long in the vertical direction, and is provided on a side panel 2 that is provided in four lateral directions, a floor 3 that supports the side panel 2 at the bottom, and an upper part of the side panel 2. A ceiling 4 and a door 5 provided on the side panel 2a on the front side of the car cab 1 and slidably openable and closable (in the direction of arrow γ1 in FIG. 1) are provided.
The passenger compartment 1 is airtight by a side panel 2, a floor 3, a ceiling 4, a door 5, and a sealing seal 6 for closing a gap between the door 5 and the side panel 2 when the door 5 is closed. It is kept.

In order to control the air pressure in the airtight passenger compartment 1, a blower 7 is installed on the ceiling 4 to pump air outside the passenger compartment 1 into the interior of the passenger compartment 1. The air pressure inside the passenger compartment 1 is controlled by adjusting the amount of air that enters the compartment 1.
Further, the side panel 2b of the passenger compartment 1 is provided with an elevator ventilation device 8 for ventilating the passenger compartment 1 in the event of an emergency (power interruption) when power supply is stopped. The elevator ventilation device 8 is covered with an outer case 8c.

<Configuration of elevator ventilation device 8>
FIG. 2 is a view in the direction of arrow A in FIG. 1 showing the internal configuration of the elevator ventilation device 8 provided in the car cab 1. In FIG. 2, the outer case 8 c of the elevator ventilation device 8 is indicated by a two-dot chain line.

The elevator ventilator 8 shown in FIG. 2 has a ventilating window for opening and closing the ventilating opening k as a configuration for opening and closing the ventilating opening k serving as a vent of the cab 1 in the event of an emergency (power interruption) when power supply is cut off. An opening / closing member 17, a closing solenoid 14 for closing the ventilation window opening / closing member 17, a casing 13 for fixing the closing solenoid 14 to the side panel 2 b, and an on / off of the attractive force provided on the closing solenoid 14 2 is provided between the casing 13 and the opening / closing shaft 15 for closing. The opening / closing shaft 15 moves in the direction of arrows α2 and α3 in FIG. 2, the link mechanism 21 that links the opening / closing shaft 15 and the ventilation window opening / closing member 17 together. A compression spring 16 that presses the engaging portion 15a of the opening / closing shaft 15 away from the housing 13 (in the direction of arrow α2 in FIG. 2) when the solenoid 14 is turned off to open the ventilation window opening / closing member 17 is provided.
Here, the link mechanism 21 converts the linear motion of the opening / closing shaft 15 of the closing solenoid 14 into the rotational motion of the ventilation window opening / closing member 17 using a slot or the like.
The opening / closing shaft 15 moves in the direction of arrow α3 in FIG. 2 by the magnetic force of electromagnetic induction when the closing solenoid 14 is turned on (see the solid line in FIG. 2), while the electromagnetic induction is turned off when the closing solenoid 14 is turned off. Due to the elastic force of the compression spring 16, it moves in the direction of arrow α2 in FIG. 2 and opens the ventilation window opening / closing member 17 (see the two-dot chain line in FIG. 2).

  Further, the elevator ventilation device 8 locks the closed (closed) state of the ventilation opening k by the ventilation window opening / closing member 17 as a mechanism for locking the closed (closed) state of the ventilation opening k by the ventilation window opening / closing member 17. The locking solenoid 10 for locking, the housing 9 for fixing the locking solenoid 10 to the side panel 2b, and the ventilation window opening and closing member 17 are locked by the electromagnetic induction magnetic force of the locking solenoid 10 and the electromagnetic induction is turned off. The lock shaft 11 returning to the lock position (see the two-dot chain line in FIG. 2) and the engaging portion 11a of the lock shaft 11 provided between the housing 9 and the lock shaft 11 are separated from the housing 9 (FIG. 2). And a compression spring 12 that presses the lock shaft 11 in the direction of the unlocked position (in the direction of arrow α1 in FIG. 2) and closes the closed ventilation window opening / closing member 17 to be unlocked. .

In addition, the elevator ventilation device 8 includes an activation switch 19.
The operation switch 19 unlocks the ventilation window opening / closing member 17 of the locking solenoid 10 and the power-on function of the locking solenoid 10 that locks the ventilation window opening / closing member 17 in the closed state and the power-off function of the closing solenoid 14. The function for switching between the power-off function and the function for switching on the power supply of the closing door of the ventilation window opening / closing member 17 of the closing solenoid 14 are provided.
The operation switch 19 is illustrated as being located above the ventilation opening k and in contact with the ventilation window opening / closing member 17 that closes the door. However, if the operation switch 19 performs a predetermined function described later, the operation switch 19 The position where 19 is provided is not limited.

  That is, in the operation switch 19, the movable terminal 19O of the operation switch 19 comes into contact with the terminal 19A at the normal time after the ventilation window opening / closing member 17 is closed with the power of the closing solenoid 14 turned on, and the power is supplied to the locking solenoid 10. Along with (current 19a), the movable terminal 19O moves away from the terminal 19B, and the energization to the closing solenoid 14 is stopped. Here, the movable terminal 19O of the operation switch 19 is urged by an elastic material in a direction in contact with the terminal 19B (downward in the drawing of FIG. 2), and power is supplied through a connection (not shown) at normal times when power is supplied. ing.

  On the other hand, since the power supply to the locking solenoid 10 via the movable terminal 19O and the terminal 19A of the operation switch 19 is cut off in an emergency (power failure), the lock shaft 11 is moved by the compression spring 12 to the arrow α1 in FIG. The lock shaft 11 moves back to the unlocked position of the two-dot chain line in FIG. Therefore, the opening / closing shaft 15 moves in the direction of the arrow α2 in FIG. 2 by the elastic force of the compression spring 16 of the closed closing solenoid 14, and the ventilation window opening / closing member 17 is moved by the behavior of the opening / closing shaft 15 and the link mechanism 21. The door is opened to the open position of the two-dot chain line in FIG. 2 (arrow β1 in FIG. 2).

The elevator ventilator 8 is provided with a packing 20 on the side panel 2b that keeps the ventilation window opening / closing member 17 and the side panel 2b airtight when the ventilation window opening / closing member 17 is closed.
As shown in FIG. 2, the packing 20 is provided on the side panel 2b in such a manner that the packing 20 is in contact with the closed ventilation window opening / closing member 17 and is located around the ventilation opening k of the side panel 2b.
Thus, when the ventilation window opening / closing member 17 is closed, the packing 20 is in contact with the peripheral edge of the ventilation window opening / closing member 17 and between the ventilation window opening / closing member 17 and the side panel 2b around the ventilation opening k. The cab 1 is kept airtight.

<During normal power supply>
In the elevator ventilator 8, when the normal power supply is supplied (power is supplied) during normal operation, the movable terminal 19O of the operation switch 19 is in contact with the terminal 19A as shown in FIG. 10 (current 19a in FIG. 2). By energizing the locking solenoid 10, the lock shaft 11 is pulled by the locking solenoid 10, moves in the direction of arrow α 4 in FIG. 2, and moves forward to a position facing the ventilation window opening / closing member 17 outside the ventilation window opening / closing member 17. . As a result, the lock shaft 11 prevents the opening operation of the ventilation window opening / closing member 17 (operation in the direction of the arrow β1 in FIG. 2) and locks the ventilation window opening / closing member 17 in the closed state.

At this time, the movable terminal 19O and the terminal 19B of the operation switch 19 are separated from each other, so that the energization of the closing solenoid 14 is cut off to save power.
Although the closing solenoid 14 is turned off and the force of the closing solenoid 14 for closing the ventilation window opening / closing member 17 is lost, the opening operation of the ventilation window opening / closing member 17 is blocked by the lock shaft 11 (see FIG. 2). Therefore, the ventilation window opening / closing member 17 does not open.
When the normal power supply is supplied at the normal time, the air pressure in the passenger compartment 1 is controlled by the blower 7.

<Emergency (when power is cut)>
When the normal power supply is stopped during normal operation (when power is cut off), the blower 7 stops blowing. Therefore, since the passenger compartment 1 is airtight, passengers inside the passenger compartment 1 may be deficient in oxygen.
Therefore, the ventilation window opening / closing member 17 of the elevator ventilation device 8 is opened as follows, and the passenger compartment 1 is ventilated.

When the normal power supply in the normal state is stopped, electricity (current 19a) to the locking solenoid 10 is cut off through contact between the movable terminal 19O and the terminal 19A of the operation switch 19 shown in FIG.
Then, since the locking solenoid 10 is turned off, the engaging portion 11a of the lock shaft 11 is pressed by the elastic force of the compression spring 12, as indicated by an arrow α1 in FIG. Therefore, the lock shaft 11 is retracted in the direction of the arrow α1, the closed ventilation window opening / closing member 17 is unlocked, and the door is unlocked.

At this time, since the movable terminal 19O and the terminal 19B of the operation switch 19 are in a non-contact state and the power supply is cut off, the closing solenoid 14 is not energized. Therefore, the engaging portion 15a of the opening / closing shaft 15 is pressed in the direction of the arrow α2 in FIG. 2 by the elastic force of the compression spring 16, and the opening / closing shaft 15 is retracted in the direction of the arrow α2. At this time, the opening / closing shaft 15 and the link mechanism 21 are interlocked, the ventilation window opening / closing member 17 is rotated counterclockwise (in the direction of arrow β1 in FIG. 2), and the ventilation window opening / closing member 17 is opened (see 2 in FIG. 2). (See dotted line).
In this way, the ventilation opening k of the passenger compartment 1 is opened, and the passenger compartment 1 is ventilated.

<Restoring the normal power supply during normal operation>
When the normal power supply is restored, the ventilation window opening / closing member 17 closes the ventilation opening k as follows.
At the time of emergency (power interruption), since the ventilation window opening / closing member 17 is in the open state (see the two-dot chain line in FIG. 2), the movable terminal 19O of the operation switch 19 and the terminal 19B are in contact. When the power supply is started, a current 19b flows through the movable terminal 19O and the terminal 19B of the operation switch 19, and the closing solenoid 14 is energized. Then, by the magnetic force of the closing solenoid 14, the opening / closing shaft 15 overcomes the elastic force of the compression spring 16 (in the direction of arrow α2 in FIG. 2) and moves in the direction of arrow α3 in FIG. The interlocking ventilation window opening / closing member 17 is rotated clockwise (in the direction of arrow β2 in FIG. 2) to close the ventilation opening k and close the ventilation opening k (see FIG. 2).

When the ventilation opening k is completely closed by the ventilation window opening / closing member 17, the movable window 19O of the operation switch 19 is pressed by the ventilation window opening / closing member 17 to come into contact with the terminal 19A (see FIG. 2). Then, the current 19a flows to the locking solenoid 10 via the movable terminal 19O and the terminal 19A of the operation switch 19, and the locking solenoid 10 is energized. Due to the magnetic force generated by energization of the locking solenoid 10, the lock shaft 11 overcomes the elastic force of the compression spring 12 (in the direction of arrow α1 in FIG. 2) and moves in the direction of arrow α4 in FIG. 2 to lock the ventilation window opening / closing member 17. (See Figure 2).
At this time, the movable terminal 19O and the terminal 19B of the operation switch 19 are not in contact with each other, and the current 19b does not flow through the closing solenoid 14, so that the closing solenoid 14 is turned off. As described above, when the regular power supply is supplied during normal operation, the closing solenoid 14 is not energized.

By returning to the normal power supply at the normal time, the ventilation opening k of the side panel 2b is closed by the ventilation window opening / closing member 17, and the ventilation of the passenger compartment 1 performed in an emergency is stopped.
During this normal (normal) operation, even if there is a pressure difference between the inside and outside of the cab 1, the elastic force of the compression spring 16 is not the operating force of the locking solenoid 10 but the rigidity including the bending rigidity of the lock shaft 11. In contrast, the closed state of the ventilation window opening / closing member 17 can be maintained. In other words, the ventilation window opening / closing member 17 provided on the side panel 2b of the passenger compartment 1 is locked by the rigidity of the lock shaft 11 of the locking solenoid 10 at the normal time.
When the regular power supply is supplied in the normal time, the air pressure inside the passenger compartment 1 is controlled by the blower 7 as described above.

<Effect>
According to the said structure, the passenger confined in the passenger compartment 1 does not run out of oxygen by opening the ventilation window opening / closing member 17 of the elevator ventilation apparatus 8 at the time of a power failure.
On the other hand, when electricity returns, there is no need to wait for a manual return by maintenance personnel or the like, and the ventilation window opening / closing member 17 can be automatically returned to smoothly operate the elevator E normally (normally).
Further, during normal (normal) operation, the closed state of the ventilation window opening / closing member 17 can be reliably maintained without being affected by the pressure difference between the inside and outside of the passenger compartment 1.

(Second Embodiment)
Next, the elevator ventilation apparatus 30 of 2nd Embodiment is demonstrated using FIG. 3, FIG.
FIG. 3 is a perspective view showing a passenger car provided with the elevator ventilation apparatus 30 of the second embodiment according to the present invention, and FIG. 4 shows an internal configuration of the elevator ventilation apparatus 30 provided in the passenger compartment 1 shown in FIG. It is a B direction arrow line view of Drawing 3 shown.
As shown in FIG. 4, the elevator ventilator 30 of the second embodiment ensures that the closed ventilation window opening / closing member 37 is locked by the lock shaft 28, and the opened ventilation window opening / closing member 37 (see FIG. 4). The door is closed by using the opening operation of the door 5 (see the dotted line).

  As shown in FIG. 3, the elevator 2E of the second embodiment is similar to the elevator E (see FIG. 1) of the first embodiment. The side panel 2 provided, the floor 3 supporting the side panel 2, the ceiling 4 provided on the upper side of the side panel 2, and the front side of the passenger compartment 1 are slidable so as to be opened and closed (in the direction of arrow γ2 in FIG. 3). The cab 1 is configured to maintain airtightness by the door 5 to be closed and a sealing seal 6 for closing a gap between the door 5 and the side panel 2 when the door 5 is closed.

In order to control the air pressure in the highly airtight passenger compartment 1, a blower 7 that pumps air into the passenger compartment 1 is installed on the ceiling 4. The amount of air entering 1 is adjusted, and the air pressure inside the passenger compartment 1 is controlled.
The side panel 2a on which the door 5 on the front side of the passenger compartment 1 is disposed is provided with an elevator ventilator 30 for ventilating the passenger compartment 1 in the event of an emergency (power failure) when power feeding is stopped. In addition, the elevator ventilator 30 is covered with the outer case 30c. In FIG. 4, the outer case 30c of the elevator ventilation device 30 is indicated by a two-dot chain line.

<Configuration of elevator ventilator 30>
The elevator ventilation device 30 is configured to open and close the ventilation opening k (see FIG. 4) of the passenger compartment 1, and the ventilation window opening and closing member 37 that opens and closes the ventilation opening k and the rotation shaft of the ventilation window opening and closing member 37. Provided on the front side panel 2a and a torsion coil spring 31 that urges the ventilation window opening / closing member 37 to open the ventilation opening k from the ventilation window opening / closing member 37 (in the direction of arrow β4 in FIG. 4). A packing 29 is provided to maintain airtightness between the closed ventilation window opening / closing member 37 and the side panel 2a.
The packing 29 is provided around the ventilation opening k (see FIG. 4) of the side panel 2a so as to contact the peripheral edge of the ventilation window opening / closing member 37 when the ventilation window opening / closing member 37 is closed. The airtightness between the opening / closing member 37 and the side panel 2a is maintained.

The ventilation window opening and closing member 37 is provided with a trapezoidal part 25 having a trapezoidal shape used for closing the ventilation window opening and closing member 37 on one rotating shaft side, and the other end of the ventilation window opening and closing member 37 is closed. A component 26 having a tapered portion 26t used for locking the opening / closing member 37 is provided.
For example, the ventilation window opening / closing member 37 is formed by bending a steel plate, and the base part 25 and the part 26 are attached to the ventilation window opening / closing member 37 by screwing. Alternatively, the ventilation window opening / closing member 37, the trapezoidal component 25, and the component 26 may be integrally formed, or any two of these components may be integrally formed and other components may be formed separately. Well, the manufacturing method can be selected as appropriate.

  As shown in FIG. 4, the elevator ventilator 30 is configured to lock the closed ventilation window opening / closing member 37, and as shown in FIG. 4, the locking solenoid 23 for applying a force for locking the ventilation window opening / closing member 37 and the locking solenoid 23 are arranged on the side surface. A casing 22 fixed to the panel 2a, a lock position (see a solid line in FIG. 4) and a component 26 provided on the locking solenoid 23 and causing one end 28a to abut the component 26 at the tip of the ventilation window opening / closing member 37. A lock shaft 28 that moves between a non-lock position (see a two-dot chain line in FIG. 4) that is separated from the lock shaft 28 and an engagement portion 28b of the lock shaft 28 that is provided between the housing 22 and the lock shaft 28. A compression spring 24 that urges away from the body 22 (in the direction of arrow α6 in FIG. 4), an operation switch 32 for energizing the locking solenoid 23 to lock the closed state of the ventilation window opening and closing member 37, A roller 27 provided inside the door 5 (on the side of the passenger compartment 1) and abutting and pressing against the base part 25 of the ventilation window opening / closing member 37 opened when the door 5 is opened to close the ventilation window opening / closing member 37. And.

The movable terminal 32O of the operation switch 32 is urged by an elastic material in a direction away from the terminal 32A (downward on the paper surface of FIG. 4), and is normally fed through a connection (not shown).
Note that the operation switch 32 is illustrated above the ventilation opening k and is in a position where the operation switch 32 is in contact with the ventilation window opening / closing member 37 that closes the door. The position where 32 is provided is not limited.
In the elevator ventilator 30 having this configuration, when the opened ventilation window opening / closing member 37 is closed, the trapezoidal component 25 of the opened ventilation window opening / closing member 37 (shown by a broken line in FIG. 4) is opened. The ventilation window opening / closing member 37 is closed by being pressed by the roller 27 (indicated by a broken line in FIG. 4) of the door 5 (in the direction of arrow γ21 in FIG. 4).
At this time, when the movable terminal 32O of the operation switch 32 is pressed by the ventilation window opening / closing member 37 and comes into contact with the terminal 32A, normal power is supplied to the locking solenoid 23 via the movable terminal 32O and the terminal 32A. Due to the magnetic force generated when the locking solenoid 23 is turned on, the lock shaft 28 moves forward to the outside of the ventilation window opening / closing member 37 (in the direction of the arrow α5 in FIG. 4) and comes into contact with the tapered portion 26t of the component 26 of the ventilation window opening / closing member 37. The ventilation window opening / closing member 37 is locked (see FIG. 4). Thereby, the ventilation window opening and closing member 37 is securely locked by the lock shaft 28.
When the normal power supply is supplied in the normal state, the air pressure in the passenger compartment 1 is controlled by the blower 7.

Next, the operation of the elevator ventilation device 30 will be described in detail.
<When the regular power supply is stopped during normal operation>
When an emergency situation occurs and the normal power supply is stopped during normal times, the blower 7 stops blowing air, so it is necessary to prevent the passengers inside the airtight passenger compartment 1 from running out of oxygen. .
Therefore, in order to ventilate the passenger compartment 1, the ventilation window opening / closing member 37 is opened as follows.

When the power supply of the regular power supply is stopped, the energization (current 32a) to the locking solenoid 23 due to the contact between the movable terminal 32O and the terminal 32A of the operation switch 32 is cut off.
When the lock solenoid 23 is disconnected, the lock shaft 28 is moved in the direction of arrow α6 in FIG. 4 by the elastic force of the compression spring 24, and the lock of the closed ventilation window opening / closing member 37 is released.
Then, the ventilation window opening / closing member 37 is rotated counterclockwise (in the direction of arrow β4 in FIG. 4) by the elastic force of the torsion coil spring 31, and the ventilation opening k is opened. By opening the ventilation window opening / closing member 37, the passenger compartment 1 is ventilated through the ventilation opening k.

<When normal power supply is restored during normal operation>
Thereafter, when the normal power supply returns to normal, the door 5 is opened once (see the broken line reference numeral 5 in FIG. 4), and the roller 27 provided on the door 5 comes into contact with the table-like component 25, as shown in FIG. Pressing in the direction of arrow γ21 rotates the ventilation window opening / closing member 37 clockwise (in the direction of arrow β3 in FIG. 4).
When the ventilation window opening / closing member 37 is completely closed, the ventilation window opening / closing member 21 presses the movable terminal 32O of the operation switch 32, and the movable terminal 32O and the terminal 32A come into contact with each other.
Then, the current 32a from the movable terminal 32O to which power is supplied causes the locking solenoid 23 to be energized, and the lock shaft 28 overcomes the elastic force of the compression spring 24 and moves in the direction of arrow α5 in FIG. One end portion 28 a of 28 is in contact with the tapered portion 26 t of the component 26 provided on the ventilation window opening / closing member 37, and the closed ventilation window opening / closing member 37 is locked by the lock shaft 28.

Here, since the component 26 has a tapered portion 26t formed in a tapered shape, the ventilation window opening / closing member 37 is more reliably closed by the operating force of the lock shaft 28 in the direction of the arrow α5 in FIG. .
By the closing operation of the ventilation window opening / closing member 37 by the tapered portion 26t, the packing 29 is compressed and the ventilation window opening / closing member 37 is further closed. Therefore, even if the door 5 opens and closes in the direction of the arrow γ2 in FIG. 3, the roller 27 provided on the door 5 does not come into contact with the base part 25 of the ventilation window opening and closing member 37 (see FIG. 4).
Even if there is a pressure difference between the inside and outside of the passenger compartment 1 during normal (normal) operation, the closed state of the ventilation window opening / closing member 37 is not the operating force of the locking solenoid 23 but the rigidity such as the bending rigidity of the lock shaft 28. Can be maintained.
Further, when the normal power supply is stopped and then recovered, the elevator 2E is configured to stop the cab 1 on the nearest floor of the building with respect to the traveling direction and open the door. It is possible to prevent the vehicle from traveling over a long distance with a large height difference while the ventilation window opening / closing member 21 is released.
Alternatively, when the normal power supply is stopped and then recovered, the elevator 2E operates until the next designated destination floor with the operation speed of the passenger compartment 1 lower than the normal speed, thereby the ventilation window of the elevator ventilation device 30. It is possible to prevent the passenger from feeling uncomfortable by traveling with the opening / closing member 21 released.

<Effect>
According to the above configuration, at the time of a power failure, the passenger confined in the passenger compartment 1 can be opened by opening the ventilation window opening / closing member 37 of the elevator ventilation device 30 and opening the ventilation opening k (see FIG. 4). There is no lack of oxygen.
Further, when electricity is restored, there is no need to wait for manual return by maintenance personnel or the like, and the ventilation window opening / closing member 37 is automatically returned to the closed state, so that the elevator 2E can be smoothly operated normally. Further, during normal operation, the closed state of the ventilation window opening / closing member 37 can be reliably maintained without being affected by the pressure difference between the inside and outside of the passenger compartment 1.

  In the second embodiment, when returning to the normal state where power is supplied, as a ventilation window closing means for closing the ventilation window opening / closing member 37, a roller 27 provided on the door 5 and a trapezoid provided on the ventilation window opening / closing member 37 are provided. Although the component 25 is illustrated, instead of this configuration, a door closing motor and a link mechanism that transmits the driving force of the motor and closes the opened ventilation window opening / closing member 37 are provided as ventilation window closing means. Also good. Thus, the ventilation window closing means is not limited to the roller 27 provided on the door 5 and the base-like component 25 provided on the ventilation window opening / closing member 37.

In the second embodiment, the case where the roller 27 is provided on the door 5 is exemplified as the pressing member. However, a rotatable member other than the roller 27 may be provided, or if grease or the like is applied, A fixing member other than the roller 27 may be used as the pressing member, and the pressing member is not limited to the roller 27.
Moreover, although the base-shaped component 25 was illustrated as a pressed member provided in the ventilation window opening / closing member 37, the pressing member provided in the door 5 was illustrated using the pressed member provided in the ventilation window opening / closing member 37 as a roller or a rotatable member. A fixed member may be used instead of the roller.

Alternatively, both the pressed member provided on the ventilation window opening / closing member 37 and the pressing member provided on the door 5 may be rotatable members such as rollers.
In the first and second embodiments, the case where the ventilation opening k and the elevator ventilation devices 8 and 30 are provided on the side panel 2 has been described as an example. However, instead of the side panel 2, the ceiling 4 May be provided. Alternatively, if a safe cover having a high safety coefficient is provided, the ventilation opening k and the elevator ventilation devices 8 and 30 can be provided on the floor 3.

<< Summary >>
The elevator ventilators 8 and 30 shown in FIGS. 2 and 4 include a ventilation opening k provided in the side panel 2 and the ceiling 4 of the passenger compartment 1, and a ventilation window opening / closing member that opens and closes the ventilation opening k. 17, 37, packings 20, 29 provided so as to be in contact with the peripheral edge of the closed ventilation window opening / closing members 17, 37, and a locking solenoid 10 installed on the opening / closing part side of the ventilation window opening / closing members 17, 37 , 23, compression springs 12 and 24 for returning to the unlocked position, operation switches 19 and 32 of the solenoids 10 and 23 for locking, and a closing solenoid 14 installed on the rotating shaft side of the ventilation window opening and closing members 17 and 37 And a compression spring 16 (first embodiment) or a torsion coil spring 31 (second embodiment).

Further, the extending direction of the shafts (lock shafts 11 and 28) of the locking solenoids 10 and 23 installed on the opening / closing portion side of the ventilation window opening / closing members 17 and 37 intersects the opening / closing direction of the ventilation window opening / closing members 17 and 37. (For example, vertical).
Then, due to the rigidity of the lock shafts 11 and 28 of the solenoids 10 and 23 for locking, a spring (compression spring 16 (see FIG. 2 of the first embodiment)), a torsion coil spring installed on the rotating shaft side of the ventilation window opening and closing members 17 and 37 31 (see FIG. 4 of the second embodiment)) and the door opening force due to the pressure difference inside and outside the passenger compartment 1 are overcome, and the ventilation window opening and closing members 17 and 37 are locked.

In an emergency when the regular power supply is stopped, the lock solenoids 10 and 23 installed on the open / close part side of the ventilation window opening and closing members 17 and 37 are cut off, and the lock shafts 11 and 28 that are the shafts of the lock solenoids 10 and 23 are cut off. Is retracted by the elastic force of the compression springs 12 and 24 (see FIGS. 2 and 4), and the ventilation window opening and closing members 17 and 37 are unlocked.
And by the elastic force of the spring (compression spring 16 (refer FIG. 2 of 1st Embodiment), the torsion coil spring 31 (refer FIG. 4 of 2nd Embodiment)) installed in the rotating shaft side of the ventilation window opening / closing members 17 and 37. The ventilation window opening and closing members 17 and 37 are opened.

When electricity returns, the energization of the closing solenoid 14 installed on the rotating shaft side of the ventilation window opening and closing members 17 and 37 (first embodiment) or the opening operation of the door 5 having the rollers 27 (second embodiment) Thus, the elastic force of the springs (compression spring 16 and torsion coil spring 31) installed on the rotation shafts of the ventilation window opening and closing members 17 and 37 is overcome, and the ventilation window opening and closing members 17 and 37 are closed.
When the ventilation window opening and closing members 17 and 37 are closed at the normal position, the ventilation window opening and closing members 17 and 37 press the movable terminals 19O and 32O of the operation switches 19 and 32 to contact the terminals 19A and 32A, and lock them. Energization of the solenoids 10 and 23 is started. When the locking solenoids 10, 23 are turned on, the lock shafts 11, 28 of the shafts of the locking solenoids 10, 23 move forward to lock the ventilation window opening / closing members 17, 37 (see FIGS. 2 and 4).

<< Action and effect >>
According to the above configuration, the ventilation window opening and closing members 17 and 37 are automatically opened and closed at the time of a power failure and when electricity is restored (when normal normal power is supplied).
Furthermore, during normal (normal) operation, the lock shafts 11 and 28 can reliably lock the ventilation window opening and closing members 17 and 37 without being affected by the pressure difference between the inside and outside of the passenger compartment 1.
In addition, when the ventilation window opening / closing members 17 and 37 are closed, power is saved except for the solenoids 10 and 23 other than the locking solenoids.

In the first and second embodiments, the compression springs 12 and 24 are exemplified as the non-locking elastic material for returning the lock shafts 11 and 28 when the locking solenoids 10 and 23 are not energized. If the lock shafts 11 and 28 are restored when the solenoids 10 and 23 are not energized, a tension spring or a torsion coil spring other than the compression springs 12 and 24 may be used as the non-locking elastic material, and the invention is not limited to the compression spring. .
Further, as the opening elastic member for opening the ventilation window opening and closing members 17 and 37, the compression spring 16 is exemplified in the first embodiment, and the torsion coil spring 31 is exemplified in the second embodiment. As long as a force for opening the window opening and closing members 17 and 37 can be applied, a tension spring other than the compression spring 16 and the torsion coil spring 31 may be used, and the present invention is not limited to the compression spring and the torsion coil spring.

In the first and second embodiments, the case where the lock shafts 11 and 28 are perpendicular to the opening and closing direction of the ventilation window opening and closing members 17 and 37 is illustrated. However, the lock shafts 11 and 28 are the ventilation window opening and closing member 17. The locking shafts 11 and 28 are not limited to the case where the locking shafts 11 and 28 are perpendicular to the opening and closing directions of the ventilation window opening and closing members 17 and 37.
In the first and second embodiments, the operation switches 19 and 32 have been described by exemplifying contact type switches. However, non-contact type switches such as a magnetic type, a capacitance type, and an optical type may be used. The operation switches 19 and 32 are not limited as long as they can perform the functions described above, and can be appropriately selected.

1 Passenger car room 5 Door 7 Blower (atmospheric pressure control device)
8, 30 Elevator ventilator 10, 23 Locking solenoid 14 Closing solenoid (closing solenoid, ventilation window closing means)
11, 28 Lock shaft (shaft)
15 Solenoid shaft (transmission means, ventilation window closing means)
12, 24 Compression spring (non-locking elastic material)
16 Compression spring (elastic material for opening doors)
17, 37 Ventilation window opening and closing member 19, 32 Operation switch 21 Link mechanism (transmission means, ventilation window closing means)
25 Trapezoidal parts (ventilation window closing means, pressed member)
27 Roller (ventilation window closing means, pressing member)
31 Torsion coil spring (elastic material for opening doors)
E, 2E elevator

Claims (8)

An elevator ventilator for an elevator equipped with an air pressure control device for controlling the air pressure in the passenger compartment,
A ventilation window opening and closing member that is provided in the cab and is opened for ventilation when power is cut off;
A solenoid for locking that locks the ventilation window opening and closing member that is energized during power supply and that is closed by the operation of the shaft;
An operation switch for energizing the locking solenoid when the ventilation window opening and closing member is closed;
An elastic material for non-locking that retracts the shaft of the locking solenoid when power is cut off;
An elastic material for opening the door that gives the opening force of the ventilation window opening and closing member;
An elevator ventilation apparatus comprising: ventilation window closing means for closing the ventilation window opening and closing member when returning to the normal state. The ventilation window closing means includes transmission means, and a closing solenoid that applies the closing force of the ventilation window opening / closing member via the transmission means when returning to the normal state. Item 2. The elevator ventilator according to item 1. The elevator ventilator according to claim 1 or 2, wherein the door opening elastic member is a compression spring. The ventilation window closing means is:
A pressing member that is provided on a door and closes the ventilation window opening and closing member by pressing a part of the ventilation window opening and closing member by opening the door when returning to the normal state;
A pressed member provided on the ventilation window opening and closing member and pressed by the pressing member so that the ventilation window opening and closing member is closed when returning to the normal state. The elevator ventilator according to 1. The elevator ventilation apparatus according to claim 4, wherein the pressing member of the door is a roller. The elevator ventilator according to claim 4 or 5, wherein the opening elastic member is a torsion coil spring. The extending direction of the shaft of the locking solenoid is arranged so as to intersect the opening / closing direction of the ventilation window opening / closing member, and due to the rigidity of the shaft of the locking solenoid, the opening of the ventilation window opening / closing member by the elastic material for opening the door The elevator ventilator according to any one of claims 1 to 6, wherein an opening is suppressed and the ventilation window opening / closing member is locked. The elevator ventilation apparatus according to any one of claims 1 to 7, wherein the non-locking elastic material is a compression spring.

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