JP2017121982A - Car door airtight device and elevator device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a car door airtight device and an elevator device capable of maintaining airtightness, without hindering opening-closing of a door.SOLUTION: An airtight mechanism body 32 is rotatably constituted around a rotary shaft 38 substantially parallel to an inner surface of door members 22A and 22B. A movement mechanism 36 rotates the airtight mechanism body 32 when closing a door of the door members 22A and 22B. A contact object member 35 is provided in the door members 22A and 22B, and a push-in airtight member 33 contacts by rotation of the airtight mechanism body 32. The contact object member 35 comprises a horizontal part 42 substantially parallel to the horizontal direction and a vertical part 43 substantially parallel to the vertical direction. The push-in airtight member 33 is displaced in the horizontal direction and the vertical direction by the rotation of the airtight mechanism body 32, and contacts with the horizontal part 42 and the vertical part 43 of the contact object member 35.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a car door hermetic device for controlling the air pressure in a car, and an elevator apparatus equipped with the car door hermetic device.

  2. Description of the Related Art In recent years, with the rise in the number of buildings, the lifting speed of an elevator device tends to increase. For example, high-speed elevator devices exceeding 1000 m / min have been put into practical use. In a high-speed elevator device with a long stroke, a sudden pressure fluctuation in the passenger compartment may cause ear clogging or discomfort to the passenger. In view of this, there has been proposed an air pressure control device that reduces the passenger's ear-closing feeling associated with a sudden change in air pressure by controlling the air pressure in the car room according to the air pressure outside the car room.

  By the way, in order to change the air pressure in the passenger compartment to the optimum state by the atmospheric pressure control device, it is necessary to improve the airtightness in the passenger compartment. For example, Patent Document 1 discloses a technique for improving the airtightness in the passenger compartment.

  An airtight device for a car door described in Patent Literature 1 includes an airtight mechanism body that can rotate around a rotation axis that is substantially parallel to the inner surface of the car door, and an airtight member that is installed in the airtight mechanism body. Yes. Then, when the car door is closed, the airtight mechanism body is rotated, the airtight member is brought into contact with the car door, and the gap between the door and the top frame is closed to make the car room airtight.

International Publication No. 2012/0665887 Pamphlet

  By the way, in the car door hermetic device described in Patent Document 1, when the air pressure in the car room becomes higher than the air pressure outside the car room by the atmospheric pressure control, the car door is pushed out. In this case, if the pushing amount of the airtight member is smaller than the amount of change in the distance between the car door and the ceiling frame, a gap is generated between the car door and the airtight member.

  Therefore, in the car door airtight device described in Patent Document 1, the pushing amount of the airtight member is set larger than the amount of change in the distance between the car door and the top frame when the car door is pushed outward. Thus, a gap is hardly formed between the car door and the airtight member. However, when the pushing amount of the airtight member is increased, the reaction force of the airtight member when the car door is not pushed outward increases, so that the door may be prevented from opening and closing.

  An object of the present invention is to provide a car door airtight device and an elevator device that can solve the problems of the prior art and can improve the airtightness of the car.

  In order to solve the above problems and achieve the object of the present invention, a car door airtight device of the present invention includes an airtight mechanism body, a push-in airtight member provided in the airtight mechanism body, a contacted member, and a moving mechanism. Is provided. The airtight mechanism body is supported movably in a cab in the cab having a cab and a cab door that opens and closes the entrance of the cab. The moving mechanism moves the airtight mechanism body when the car door is closed. The contacted member is provided on the car door, and the pushed-in airtight member comes into contact with the movement of the airtight mechanism body. Moreover, the to-be-contacted member has a horizontal part substantially parallel to the horizontal direction. The pushing airtight member is displaced in the vertical direction by the movement of the airtight mechanism body, and comes into contact with the horizontal portion of the contacted member.

  The elevator apparatus according to the present invention includes a car room and a car having a car door that opens and closes the car room, a rope for suspending the car, a hoisting machine, a pressure control device, and a car door airtight device. With. The hoisting machine has a rope wound around and drives the rope to raise and lower the car. The air pressure control device controls the air pressure in the car room according to the air pressure outside the car room. The car door hermetic device has the above-described configuration, and closes the gap between the car room and the car door.

According to the car door airtight device and the elevator device having the above-described configuration, the airtightness of the car can be improved.
Problems, configurations, and effects other than those described above will be clarified by the following description of embodiments.

It is a block diagram which shows the structural example of the elevator apparatus which concerns on 1st Embodiment of this invention. 1 is a perspective view showing a car according to a first embodiment of the present invention. It is a sectional side view which shows the door open state of the AA cross section in FIG. It is a sectional side view which shows the door closed state of the AA cross section in FIG. It is a plane sectional view which shows the BB cross section in FIG. It is a sectional side view which shows the door airtight apparatus of the door-closing state of the car which concerns on 2nd Embodiment of this invention.

  Hereinafter, the form for implementing the car door airtight apparatus and elevator apparatus of this invention is demonstrated with reference to FIGS. In addition, the same code | symbol is attached | subjected to the common member in each figure.

<First Embodiment>
[Elevator configuration]
First, the structure of the elevator apparatus which concerns on 1st Embodiment of this invention is demonstrated with reference to FIG.
FIG. 1 is a configuration diagram illustrating a configuration example of an elevator apparatus according to the first embodiment of the present invention.

  As shown in FIG. 1, the elevator apparatus 1 according to the first embodiment includes a car 3 and a counterweight 4 that move up and down in a hoistway 100 formed in a building structure, a main rope 5, and a sheave 6. A hoisting machine 7 and a deflecting wheel 8 are provided. The main rope 5 suspends the car 3 and the counterweight 4. The main rope 5 is wound around the sheave 6, and the main rope 5 is mounted on the deflecting wheel 8.

  The hoistway 100 is formed in a building structure, and a machine room 110 is provided on the top thereof. The hoisting machine 7 and the deflecting wheel 8 are disposed in the machine room 110. The car 3 is connected to a counterweight 4 via a main rope 5. In the elevator apparatus 1 configured as described above, the main rope 5 is driven by the rotation of the sheave 6 of the hoisting machine 7, and the car 3 and the counterweight 4 move up and down in the hoistway 100 opposite to each other.

  In FIG. 1, only the lowermost floor 120 and the uppermost floor 130 are schematically shown as floors of the building structure. However, the building structure may have three or more floors. A landing door 140 is provided on each floor. The landing door 140 faces a later-described car door 22 provided on the car 3 when the car 3 stops. The landing door 140 opens and closes together with the car door 22.

[Car]
Next, the configuration of the car 3 will be described with reference to FIG.
FIG. 2 is a perspective view showing the car 3 according to the first embodiment of the present invention.

  As shown in FIG. 2, the car 3 includes a car room 21 for loading a load such as a person or an object, a car door 22 for opening / closing the entrance / exit 21 </ b> A of the car room 21, and the atmospheric pressure inside the car room 21. A blower 23 is provided as an atmospheric pressure control device to be controlled.

  The cab 21 has a rectangular shape that is long in the vertical direction, and is provided on a side panel 24 that is provided in four lateral directions, a floor 25 that supports the side panel 24 at the lower part, and an upper part of the side panel 24. And a ceiling 26. The side panel 24 </ b> A disposed on the front side of the car 3 faces the landing door 140. The side panel 24A is provided with an entrance 21A.

  The car door 22 has two door members 22A and 22B. The two door members 22A and 22B are configured to be movable in the horizontal direction along the side panel 24A. When the opposite sides of the two door members 22A and 22B come into contact with each other, the doorway 21A is closed. To do. On the other hand, when the two door members 22A and 22B face each other, the doorway 21A is opened.

  The blower 23 is installed on the ceiling 26 and pumps the air outside the cab 21 to the inside or discharges the air inside the cab 21 to the outside. That is, the blower 23 controls the air pressure inside the car 3 by adjusting the amount of air that is taken in and out of the car room 21.

  Note that the car 3 shown in FIG. 2 is provided with one blower 23. However, a plurality of fans 23 may be installed as the car according to the present invention. In the car 3 shown in FIG. 2, the blower 23 is installed on the ceiling 26 of the car room 21, but the blower 23 may be installed on the side panel 24 or the floor 25.

  A gap generated between the car room 21 and the car door 22 is closed by the door airtight device 31 so that the airtightness of the car room 21 is maintained. The door airtight device 31 is disposed at the upper part of the entrance / exit 21 </ b> A and the upper part of the car door 22 in the car room 21. One door hermetic device 31 is provided for each of the door members 22A and 22B.

[Composition of door airtight device]
Next, the configuration of the door hermetic device 31 will be described with reference to FIG.
FIG. 3 is a side sectional view showing a door open state of the AA section in FIG. 2.

  As shown in FIG. 3, the upper part of the entrance / exit 21A is formed by a top frame 29 which is a part of the configuration of the side panel 24A. The door hermetic device 31 includes an airtight mechanism body 32 rotatably attached to the top frame 29, a push-in airtight member 33 and an airtight plate 34, a contacted member 35, and a moving mechanism 36.

  The airtight mechanism body 32 is rotatable about a rotation shaft 38 that is an axis parallel to the inner surface of the door members 22A and 22B (the car door 22). The airtight mechanism body 32 is formed in a substantially rectangular parallelepiped shape extending along the rotation shaft 38. The length in the longitudinal direction of the airtight mechanism body 32 is set to be approximately the same as the length in the left-right direction (the direction in which the door members 22A and 22B move) on the front side of the top frame 29.

  The push-in airtight member 33 is attached to the door members 22 </ b> A and 22 </ b> B of the airtight mechanism body 32. The pushing airtight member 33 is formed in a band shape by an elastic member such as rubber, and the length thereof is set to be substantially the same as the length of the airtight mechanism body 32 in the longitudinal direction. The pushing airtight member 33 faces the contacted member 35 and elastically deforms by contacting the contacted member 35 (see FIG. 4).

  When the airtight mechanism body 32 rotates around the rotation shaft 38, the push-in airtight member 33 is moved in the horizontal direction (front-rear direction) in which the door members 22A and 22B and the top frame 29 (side panel 24A) face each other, and the car. It is displaced in the vertical direction, which is the up-and-down direction.

  The airtight plate 34 is fixed to the top frame 29 (side panel 24 </ b> A) and the airtight mechanism body 32, and closes a gap generated between the top frame 29 (side panel 24 </ b> A) and the airtight mechanism body 32. This prevents air from flowing into the cab 21 or flowing out of the cab 21 through the space between the top frame 29 and the airtight mechanism body 32.

  The airtight plate 34 is formed in a plate shape that can be elastically deformed. Therefore, when the airtight mechanism body 32 rotates around the rotation shaft 38 and the size of the gap generated between the top frame 29 and the airtight mechanism body 32 changes, the airtight plate 34 is elastically deformed.

  The contacted member 35 includes a fixed portion 41 fixed to the door members 22A and 22B, a horizontal portion 42 extending in the horizontal direction continuously from the fixed portion 41, and a vertical extending continuously downward from the vertical portion in the vertical direction. Part 43. The horizontal portion 42 is formed in a plate shape having a horizontal plane substantially parallel to the horizontal direction, and the vertical portion 43 is formed in a plate shape having a vertical plane substantially parallel to the vertical direction.

  The horizontal portion 42 and the vertical portion 43 of the contacted member 35 are opposed to the pushing airtight member 33. The pushing airtight member 33 comes into contact with the horizontal portion 42 and the vertical portion 43 of the contacted member 35 when displaced in the horizontal direction (front-rear direction of the cab 21) and the vertical direction. As a result, a gap generated between the door members 22A and 22B (the car door 22) and the airtight mechanism body 32 (the car chamber 21) is closed.

  The moving mechanism 36 includes a rod 51, an engagement roller 52, and an inclined cam 53. The rod 51 is provided in the airtight mechanism body 32 and is arranged at a predetermined distance from the rotation shaft 38. The engagement roller is rotatably supported by the rod 51, and rotates about a rotation axis extending in the horizontal direction (the front-rear direction of the cab 21).

  The inclined cam 53 is formed integrally with the horizontal portion 42 of the contacted member 35. That is, the inclined cam 53 is disposed on the door members 22A and 22B. The inclined cam 53 is inclined so as to become higher as it reaches the side opposite to the side where the door members 22A and 22B contact each other. An engaging roller 52 is engaged with the inclined cam 53.

  When the door members 22A and 22B are opened, the engagement roller 52 is engaged with the lower portion of the inclined cam 53, and the rod 51 extends substantially vertically. At this time, the pushing airtight member 33 and the horizontal portion 42 and the vertical portion 43 of the contacted member 35 are separated from each other. That is, when the door members 22A and 22B are opened, the airtight mechanism body 32 is stable in a posture in which the pushing airtight member 33 is separated from the horizontal portion 42 and the vertical portion 43.

  Specifically, the center of gravity of the airtight mechanism body 32, the push-in airtight member 33, the rod 51, and the engagement roller 52 is always within the range in which the airtight mechanism body 32 can rotate, rather than the rotation shaft 38. Designed to be on the side. As a result, when the engagement roller 52 is away from the inclined cam 53, the airtight mechanism body 32 is stable in a posture in which the pushing airtight member 33 is separated from the horizontal portion 42 and the vertical portion 43.

  In order to adjust the position of the center of gravity of the airtight mechanism body 32, the push-in airtight member 33, the rod 51, and the engagement roller 52, a weight may be attached to the airtight mechanism body 32 or the rod 51. Further, instead of adjusting the position of the center of gravity, a spring that biases the airtight mechanism body 32 in a direction in which the pushed airtight member 33 moves away from the contacted member 35 or a biasing member that generates a separate driving force may be used.

[Door airtight device operation]
Next, the operation of the door hermetic device 31 when the car door 22 is closed will be described with reference to FIGS.
FIG. 4 is a side sectional view showing the door closed / opened state of the AA section in FIG. 2. FIG. 5 is a cross-sectional plan view showing a BB cross section in FIG. 4.

  As shown in FIGS. 4 and 5, when the door members 22A and 22B are moved from the door open state to the door closed state, the inclined cam 53 is moved together with the door members 22A and 22B, and the engagement roller 52 is moved. It is located at the high part of the inclined cam 53. Thereby, the engagement roller 52 is pushed by the inclined cam 53, and the vertical position of the engagement roller 52 is displaced. As a result, in the airtight mechanism body 32, the engaging roller 52 rotates in the direction away from the door members 22A and 22B around the rotation shaft 38, and the pushing airtight member 33 is moved to the horizontal portion 42 and the vertical portion 43 of the contacted member 35. approach.

  Then, immediately before the door members 22 </ b> A and 22 </ b> B are in the door-closed state (for example, several mm before), the push-in airtight member 33 contacts (contacts) the horizontal portion 42 and the vertical portion 43 of the contacted member 35. Thereafter, the push-in airtight member 33 slides on the horizontal portion 42 and the vertical portion 43 of the contacted member 35, and when the door members 22A and 22B are in the door-closed state, the rotation angle of the airtight mechanism body 32 is maximized, The airtight member 33 is in close contact with the contacted member 35. As a result, the gap between the door members 22A and 22B (the car door 22) and the top frame 29 (the car room 21) is closed.

  When the door members 22A and 22B are in the door-closed state, the car 3 is in a state where it can be raised and lowered. And when the air blower 23 (refer FIG. 2) operate | moves, the taking-in / out of the air with respect to the cage | basket | car room 21 of the passenger car 3 is performed. When the blower 23 pumps air to the car room 21, the air pressure inside the car room 21 is higher than the air pressure outside the car room 21. Due to the difference in the atmospheric pressure, the door members 22A and 22B are pushed out of the cab 21 and a gap generated between the door members 22A and 22B and the top frame 29 is increased.

  At this time, the contacted member 35 moves to the outside of the cab 21 together with the door members 22 </ b> A and 22 </ b> B, and the vertical portion 43 of the contacted member 35 is pressed against the pushing airtight member 33. Further, the distance between the horizontal portion 42 of the contacted member 35 and the pushed-in airtight member 33 does not change. As a result, the pressed airtight member 33 and the contacted member 35 are maintained in close contact with each other, and the airtightness of the cab 21 is ensured.

  When the blower 23 discharges air from the car room 21 to the outside, the air pressure inside the car room 21 becomes lower than the air pressure outside the car room 21. Due to this atmospheric pressure difference, the door members 22A and 22B are pushed to the inside of the car room 21, and the gap generated between the door members 22A and 22B and the top frame 29 is reduced.

  At this time, the contacted member 35 moves to the inside of the cab 21 together with the door members 22 </ b> A and 22 </ b> B, and the vertical portion 43 of the contacted member 35 is displaced in a direction away from the pushing airtight member 33. As a result, the pushing amount of the pushing airtight member 33 into the vertical portion 43 is reduced. However, since the distance between the horizontal portion 42 of the contacted member 35 and the pushing airtight member 33 does not change, the pushing amount of the pushing airtight member 33 into the horizontal portion 42 does not change. As a result, the pressed airtight member 33 and the contacted member 35 are maintained in close contact with each other, and the airtightness of the cab 21 is ensured.

  When the door members 22A and 22B are moved from the door closed state to the door open state, the inclined cam 53 moves together with the door members 22A and 22B, and the engagement roller 52 is positioned at the lower portion of the inclined cam 53. To do. Accordingly, the pressure of the inclined cam 53 against the engaging roller 52 is weakened, and the airtight mechanism body 32 rotates in a direction in which the pushing airtight member 33 is separated from the horizontal portion 42 and the vertical portion 43 of the contacted member 35.

  As a result, when the door members 22A and 22B move from the door-closed state to the door-opened state, the amount of pushing into the horizontal portion 42 and the vertical portion 43 of the push-in airtight member 33 decreases. Then, when the engagement roller 52 is separated from the inclined cam 53, the pushing airtight member 33 is separated from the horizontal portion 42 and the vertical portion 43 of the contacted member 35.

  As described above, in the door hermetic device 31 according to the first embodiment, the atmospheric pressure control by the blower (atmospheric pressure control device) 23 causes an atmospheric pressure difference between the inside and outside of the cab 21, and the door members 22 </ b> A and 22 </ b> B The airtightness of the cab 21 can be ensured regardless of which of the two is pushed. Therefore, the airtightness of the car 3 (the car room 21) can be improved.

  Further, it is not necessary to increase the pushing amount of the pushing airtight member 33 with respect to the contacted member 35 so as to follow the deformation of the door members 22A and 22B. As a result, it is possible to prevent the door members 22A and 22B from being opened and closed.

  When the passenger enters the car room 21 of the car 3, the car room 21 of the car 3 sinks due to the weight of the passenger. On the other hand, since the door members 22A and 22B (car doors 22) are supported by a car frame independent from the car room 21, the position in the vertical direction does not change due to passengers getting in. Therefore, when the passenger gets into the car room 21 of the car 3, the distance between the push-in airtight member 33 and the horizontal portion 42 of the contacted member 35 increases, and the push-in amount of the push-in airtight member 33 into the horizontal portion 42 decreases.

  However, since the distance between the vertical portion 43 of the contacted member 35 and the pushing airtight member 33 does not change, the pushing amount of the pushing airtight member 33 into the vertical portion 43 does not change. As a result, even when the car 3 sinks due to passengers getting in, the pressed airtight member 33 and the contacted member 35 are kept in close contact with each other. The airtightness of the cab 21 is ensured. Therefore, the airtightness of the car 3 (the car room 21) can be improved.

  In addition, since the center of gravity of the airtight mechanism body 32, the push-in airtight member 33, the rod 51, and the engagement roller 52 is designed to be positioned on the door members 22A and 22B side with respect to the rotary shaft 38, the airtight mechanism body 32 is energized. There is no need for a member to be used. Thereby, the number of parts can be reduced and the door hermetic device 31 can be reduced in weight and size.

Second Embodiment
[Composition of door airtight device]
Next, the configuration of the door hermetic device according to the second embodiment of the present invention will be described with reference to FIG.
FIG. 6 is a sectional side view showing a door hermetic device in a closed state of a car according to a second embodiment of the present invention.

  The door hermetic device 61 according to the second embodiment of the present invention has the same configuration as the door hermetic device 31 according to the first embodiment, and the different configurations are a contacted member 65 and a moving mechanism 66. Therefore, here, the contacted member 65 and the moving mechanism 66 will be described, and description of other configurations of the door hermetic device 61 will be omitted.

  The door airtight device 61 includes an airtight mechanism body 32, a push-in airtight member 33 and an airtight plate 34, a contacted member 65, and a moving mechanism 66.

  The contacted member 65 includes a fixed portion 45 fixed to the door members 22A and 22B, a horizontal portion 46 extending in the horizontal direction continuously from the fixed portion 45, and a vertical extending continuously downward from the horizontal portion 46 in the vertical direction. Part 47. The horizontal portion 46 is formed in a plate shape having a horizontal plane substantially parallel to the horizontal direction, and the vertical portion 47 is formed in a plate shape having a vertical plane substantially parallel to the vertical direction.

  The horizontal portion 46 and the vertical portion 47 of the contacted member 65 are opposed to the pushing airtight member 33. The pushing airtight member 33 comes into contact with the horizontal portion 46 and the vertical portion 47 of the contacted member 65 when displaced in the horizontal direction (front-rear direction of the cab 21) and the vertical direction. As a result, a gap generated between the door members 22A and 22B (the car door 22) and the airtight mechanism body 32 (the car chamber 21) is closed.

  The moving mechanism 66 includes a rod 51 and a linear motion member 71 such as a solenoid or a linear motion motor. The rod 51 is provided in the airtight mechanism body 32 and is arranged at a predetermined distance from the rotation shaft 38. The linear motion member 71 is fixed to the door members 22A and 22B, and has a plunger 71a that can reciprocate in the horizontal direction (the front-rear direction of the cab 21). The plunger 71a of the linear motion member 71 is opposed to the rod 51 in the horizontal direction (the front-rear direction of the cab 21).

  The center of gravity of the airtight mechanism body 32, the push-in airtight member 33, and the rod 51 is designed to always be positioned on the door members 22 </ b> A and 22 </ b> B side with respect to the rotation shaft 38 within the range in which the airtight mechanism body 32 can rotate. As a result, when the plunger 71a of the linear motion member 71 and the rod 51 are separated from each other, the airtight mechanism body 32 is stabilized in a posture in which the pushing airtight member 33 is separated from the horizontal portion 46 and the vertical portion 47. ing.

[Door airtight device operation]

  As shown in FIG. 6, the door members 22A and 22B are moved from the door-open state to the door-closed state, and immediately before the door members 22A and 22B are in the door-closed state (for example, several mm before), Sensors (not shown) provided on the frame 29 detect the door members 22A and 22B. Based on this detection result, a control unit (not shown) drives the linear motion member 71. That is, the plunger 71a is moved to the top frame 29 side.

  As a result, the plunger 71 a presses the rod 51, the airtight mechanism body 32 rotates around the rotation shaft 38 in the direction away from the door members 22 </ b> A and 22 </ b> B, and the push-in airtight member 33 becomes the contacted member 65. Contact (contact) the horizontal portion 46 and the vertical portion 47. As a result, the pushed-in airtight member 33 comes into close contact with the contacted member 65, and the gap between the door members 22A and 22B (the car door 22) and the top frame 29 (the car room 21) is closed.

  Further, when the door members 22A and 22B are moved from the door-closed state to the door-open state, the detection of the door members 22A and 22B by the sensor is finished. Based on this result, a control unit (not shown) drives the linear motion member 71. That is, the plunger 71a is moved to the door members 22A and 22B side.

  As a result, the rod 51 is released from being pressed by the plunger 71a, the airtight mechanism body 32 rotates around the rotation shaft 38 in the direction in which the rod 51 approaches the door members 22A and 22B, and the push-in airtight member 33 is covered. The contact member 65 is separated from the horizontal portion 46 and the vertical portion 47.

  Also in the door hermetic device 61 of the second embodiment, the same effect as the door hermetic device 31 of the first embodiment can be obtained. That is, the atmospheric pressure control by the blower 23 (see FIG. 2) causes an atmospheric pressure difference between the inside and outside of the car room 21, and the door member 22 </ b> A, 22 </ b> B is pushed to either the outside or the inside of the car 3. Airtightness can be ensured.

  Further, it is not necessary to increase the amount of pushing of the pushing airtight member 33 with respect to the contacted member 65 so as to follow the deformation of the door members 22A and 22B. As a result, it is possible to prevent the door members 22A and 22B from being opened and closed. Further, even when the car 3 sinks due to passengers getting in, the pressed airtight member 33 and the contacted member 65 are maintained in close contact with each other, and the airtightness of the car room 21 is ensured.

[Modification]
The embodiment of the car door hermetic device and the elevator device according to the present invention has been described above including the effects thereof. However, the car door airtight device and the elevator device of the present invention are not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the invention described in the claims. is there.

  For example, in the above-described embodiment, the pushing airtight member 33 is brought into close contact with the horizontal portion 42 (46) and the vertical portion 43 (47) of the contacted member 35 (65). However, the car door hermetic device according to the present invention may be any structure as long as the pushing airtight member is in close contact with at least the horizontal portion of the contacted member.

  In other words, the distance between the horizontal portion of the contacted member and the push-in airtight member does not change even when the door member (car door) is pushed outside or inside the cab. Therefore, if the horizontal portion of the contacted member and the push-in airtight member are in close contact with each other, the airtightness of the cab 21 can be ensured.

  In the above-described embodiment, the airtight mechanism body 32 is rotated to displace the pushing airtight member 33. However, in the car door airtight device according to the present invention, the movement of the airtight mechanism body is not limited to rotation as long as the pushing airtight member can be brought into close contact with the contacted member.

  For example, in the case where the pushing airtight member is brought into close contact with only the horizontal portion of the contacted member, the airtight mechanism body may be moved in the vertical direction. Further, if the configuration in which the airtight mechanism body is linearly moved obliquely is adopted, the push-in airtight member can be displaced in the horizontal direction and the vertical direction, and the push-in airtight member can be brought into close contact with the horizontal portion and the vertical portion of the contacted member. .

  Further, the moving mechanism 36 of the first embodiment described above is configured by the rod 51, the engaging roller 52, and the inclined cam 53. Also. The moving mechanism 66 of the second embodiment is configured by the rod 51 and the linear motion member 71. However, as the moving mechanism according to the present invention, various mechanisms can be adopted as long as the airtight mechanism body 32 is rotated when the door members 22A and 22B are closed.

  As the moving mechanism, for example, a stepping motor and a gear that transmits the rotation of the shaft of the stepping motor to the rotation shaft 38 of the airtight mechanism body 32 may be configured. In this case, similarly to the second embodiment, the timing for rotating the airtight mechanism body 32 is set using a sensor that detects the door closing of the door members 22A and 22B.

  Moreover, you may comprise as a moving mechanism by the rod and the engagement protrusion fixed to door member 22A, 22B. In this case, when the door members 22A and 22B are closed, the engaging projection comes into contact with the rod and presses the rod toward the top frame 29.

  In the first and second embodiments described above, the airtight mechanism body 32 is rotated so as to be separated from the car door 22 and pushed into the horizontal portion 42 (46) and the vertical portion 43 (47) of the contacted member 35. The member 33 is configured to contact. However, the car door hermetic device according to the present invention may be configured such that the airtight mechanism body is rotated away from the car door and the pushing airtight member is brought into contact with the horizontal portion and the vertical portion of the contacted member. In this case, the surface of the car door facing the cab side may be the vertical portion of the contacted member.

  In the first embodiment described above, the inclined cam 53 and the contacted member 35 are integrally formed. Thereby, the number of parts of the door hermetic device 31 can be reduced, and the assembly man-hour of the door hermetic device 31 can be reduced. In addition, as a car door airtight apparatus which concerns on this invention, you may make it the structure which each provides an inclination cam and a to-be-contacted member separately. Thereby, when the inclined cam is worn, only the inclined cam can be replaced.

  In the first embodiment, a pair of the inclined cam 53 and the engagement roller 52 are provided. However, the car door hermetic device according to the present invention may have a configuration in which a plurality of pairs of inclined cams and engagement rollers are provided. Thereby, even if one inclined cam or one engaging roller is broken, the airtight mechanism body can be rotated by another pair of inclined cam and engaging roller.

DESCRIPTION OF SYMBOLS 1 ... Elevator apparatus, 5 ... Main rope, 6 ... Sheave, 7 ... Hoisting machine, 8 ... Baffle, 21 ... Car room, 22 ... Car door, 22A, 22B ... Door member, 23 ... Blower (pressure control device) ), 24 ... side panel, 25 ... floor, 26 ... ceiling, 29 ... top frame, 31, 61 ... door hermetic device, 32 ... airtight mechanism body, 33 ... push-in airtight member, 34 ... airtight plate, 35, 65 ... covered Contact member, 36, 66 ... moving mechanism, 38 ... rotating shaft, 41, 45 ... fixed part, 42, 46 ... horizontal part, 43, 47 ... vertical part, 51 ... rod, 52 ... engaging roller, 53 ... inclined cam 71 ... Linear motion member, 100 ... Hoistway, 110 ... Machine room, 120 ... Bottom floor, 130 ... Top floor, 140 ... Landing door

Claims (9)

An airtight mechanism body supported movably in the car room in a car having a car room and a car door that opens and closes the doorway of the car room;
A push-in airtight member provided in the airtight mechanism body;
A moving mechanism that moves the airtight mechanism body when the car door is closed;
In the car door hermetic device, comprising: a contact member provided on the car door, and a contacted member that comes into contact with the pushing airtight member by movement of the airtight mechanism body;
The contacted member has a horizontal portion substantially parallel to the horizontal direction,
The car door airtight device, wherein the push-in airtight member is displaced in a vertical direction by the movement of the airtight mechanism body and contacts the horizontal portion of the contacted member. The airtight mechanism body is configured to be rotatable around a rotation axis substantially parallel to the inner surface of the car door,
The moving mechanism rotates the airtight mechanism body when the car door is closed,
The contacted member has a vertical portion substantially parallel to the vertical direction,
The car according to claim 1, wherein the push-in airtight member is displaced in a horizontal direction and a vertical direction by rotation of the airtight mechanism body, and contacts the horizontal portion and the vertical portion of the contacted member. Door hermetic device. The center of gravity of the airtight mechanism body is set so that the pushing airtight member is stable in a state of being separated from the contacted member when the moving mechanism does not act. Car door airtight device. The moving mechanism is
A rod provided in the airtight mechanism body;
An engagement roller provided on the rod;
An inclined cam that is provided on the car door, engages with the engagement roller when the car door is closed, and rotates the airtight mechanism body. Ride the car door hermetic device. The car door hermetic device according to claim 4, wherein the inclined cam and the contacted member are integrated. The car door hermetic device according to claim 4, wherein the inclined cam and the contacted member are provided separately from each other. The car door hermetic device according to claim 4, wherein a plurality of the inclined cams and the engaging rollers are provided in pairs. A car room and a car having a car door that opens and closes the car room,
A rope for holding the car;
A hoisting machine on which the rope is wound and driving the rope to raise and lower the car;
A pressure control device for controlling the pressure inside the car according to the pressure outside the car;
A car door hermetic device for closing a gap between the car room and the car door;
The car door sealing device is
An airtight mechanism body movably supported in the cab;
A push-in airtight member provided in the airtight mechanism body;
A moving mechanism that moves the airtight mechanism body when the car door is closed;
In the car door hermetic device, comprising: a contact member provided on the car door, and a contacted member that comes into contact with the pushing airtight member by movement of the airtight mechanism body;
The contacted member has a horizontal portion substantially parallel to the horizontal direction,
The elevator apparatus according to claim 1, wherein the push-in airtight member is displaced in a vertical direction by movement of the airtight mechanism body and contacts the horizontal portion of the contacted member. The elevator apparatus according to claim 8, wherein a plurality of the car doors are provided, and the car door airtight device is provided for each of the plurality of car doors.

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