JP2012180179A - Elevator door apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To further improve a locking apparatus of a hall door.SOLUTION: The elevator door apparatus includes: a locking apparatus: and a receiving member. The locking apparatus can lock the hall door provided on the platform of an elevator hall. In addition, the locking apparatus performs locking and unlocking motions when one of a pair of rollers rotates around the center of the other roller. The receiving member is provided below the lower one of the pair of rollers in the vertical direction to receive an object falling from the rollers.

Description

  Embodiments described herein relate generally to an elevator door device.

  Conventionally, an elevator moves a car to an arbitrary floor by moving the car in the hoistway. In such elevator platforms, landing doors are provided at the entrance to the car. ing. The landing door is normally closed and blocks between the landing side and the hoistway side where the car moves up and down, and is opened and closed in conjunction with the door on the car side when the car is landing.

Japanese Patent Laid-Open No. 2002-220181

  By the way, in the prior art, there is room for further improvement in terms of a locking device for a landing door, for example.

  The elevator door device of the embodiment includes a locking device and a receiving member. The locking device can lock a landing door provided at the entrance of the elevator landing. Further, the locking device performs an unlocking operation by rotating one of the pair of rollers around the other roller. The receiving member is provided on a lower side in the vertical direction than a roller on the lower side in the vertical direction of the pair of rollers, and receives a falling object from the rollers.

FIG. 1 is a schematic configuration diagram illustrating a schematic configuration example of an elevator according to the embodiment. FIG. 2 is a partial front view of the landing door according to the embodiment as viewed from the hoistway side. Drawing 3 is a front view which looked at the locking mechanism concerning an embodiment from the hoistway side. FIG. 4 is a perspective view of the lock mechanism according to the embodiment. FIG. 5 is a vertical sectional view of the lock mechanism according to the embodiment.

[Embodiment]
FIG. 1 is a schematic configuration diagram illustrating a schematic configuration example of an elevator according to the embodiment, FIG. 2 is a partial front view of the landing door according to the embodiment viewed from the hoistway side, and FIG. 3 is a lock mechanism according to the embodiment. FIG. 4 is a perspective view of the locking mechanism according to the embodiment, and FIG. 5 is a vertical sectional view of the locking mechanism according to the embodiment.

  As shown in FIG. 1, the elevator door device 1 according to the present embodiment is applied to an elevator 2 and opens and closes a passenger car 4 and a landing 8 of a landing 8.

  The elevator 2 of the present embodiment is a so-called elevator type elevator in which, together with the elevator door device 1, a car 4 capable of moving up and down the hoistway 3 and a counterweight 5 as a counterweight are connected by a main rope 6. The elevator 2 includes a hoistway 3, a car 4, a counterweight 5, a main rope 6, an elevating drive unit 7, a landing 8, and an elevator control panel (hereinafter simply “control panel” unless otherwise specified). 9). The elevator 2 is capable of moving to a landing 8 on an arbitrary destination floor when the driving of each part is controlled by the control panel 9 and the car 4 moves up and down in the hoistway 3.

  The hoistway 3 is provided along the vertical direction of the building. The hoistway 3 is provided across a plurality of floors in the building. The elevating drive unit 7 and the control panel 9 are provided, for example, in a machine room 10 positioned on the upper side in the vertical direction of the hoistway 3 where the car 4 elevates and lowers. The car 4 is a structure for a user to get on or load a luggage. The car 4 is disposed in the hoistway 3 and can move up and down the hoistway 3. The counterweight 5 is a counterweight that is connected to the car 4 via the main rope 6 and disposed in the hoistway 3, and can move up and down the hoistway 3 in conjunction with the car 4. The main rope 6 connects the car 4 and the counterweight 5. Here, the main rope 6 is hung on the main sheave 12 or the deflecting sheave 13 of the hoisting machine 11 of the elevating drive unit 7 provided at the upper part of the hoistway 3, and the car 4 is connected to one end, A counterweight 5 is connected to the end. The elevating drive unit 7 is driven by, for example, an electric motor (motor) 14 that generates power for moving the car 4, so that the main sheave 12 connected to the electric motor 14 is driven to rotate. A hoisting machine 11 that electrically winds up the main rope 6 using a frictional force generated between the rope 6 and the like, and the driving of the main rope 6 is controlled by the control panel 9. The platform 8 is provided on each elevator stop floor where the car 4 can be landed, and is a place for the user to get on and off the car 4 and to load and unload luggage on the car 4. .

  The elevator door device 1 includes a landing door 16 provided at the entrance 15 to the car 4 at each landing 8, and a car door 18 provided at the entrance 17 to the landing 8 of the car 4. . The landing door 16 partitions the landing 8 and the hoistway 3 so that they can be opened and closed. The landing door 16 is normally in a closed state and blocks between the landing 8 side and the hoistway 3 side where the car 4 moves up and down. When the car 4 is landed, the car door on the car 4 side is blocked. 18 opens and closes.

  The control panel 9 includes a CPU (Central Processing Unit) connected to each other by a normal type bidirectional common bus, a ROM (Read Only Memory) preliminarily storing a predetermined control program and the like, and a calculation result of the CPU. RAM (Random Access Memory) temporarily stored, a map RAM prepared in advance, a backup RAM for storing information such as the specifications of the elevator 2, a microcomputer having an input / output port device, and a drive circuit. The control panel 9 is electrically connected to various parts of the sensors, detectors, and elevator 2, and controls the operation of each part in an integrated manner.

  The elevator 2 configured as described above is called from the car operation panel 19 and the landing operation panel 20 to the control panel 9 when a car call operation is performed by a user via the car operation panel, the landing operation panel, or the like. A registration signal is input, and the control panel 9 performs call registration of the car 4 in response to the call registration signal. Then, the control panel 9 makes the respective movements of the car 4 while rationally moving based on the call registration, various sensors, outputs from the detector, the current moving direction (lifting direction) of the car 4 and the like. The landing order of the car 4 is determined so as to respond to the call, the hoisting machine 11 of the elevating drive unit 7 is driven and controlled, and the car 4 is moved to the target floor. Thus, the elevator 2 moves the elevator car 4 up and down in the vertical direction in the hoistway 3 and moves to the landing 8 on an arbitrary destination floor. When the elevator 2 detects that the car 4 has landed at the landing 8 on the destination floor and has landed at a predetermined landing position, the control panel 9 thereafter detects the landing door 16 of the elevator door device 1. The car door 18 is interlocked and opened. As a result, a user standing by at the landing 8 can get into the car 4 via the entrances 15 and 17, and a user inside the car 4 can enter via the entrances 15 and 17. It is possible to get off at the platform 8.

  And the elevator 2 of this embodiment is suppressing the fallen object and having realized the appropriate locking of the landing door 16 by the elevator door apparatus 1 being applied.

  Specifically, as shown in FIGS. 2, 3, 4, and 5, the elevator door device 1 includes a lock mechanism (interlock mechanism) 21 as a locking device and a receiving member 22.

  As shown in FIG. 2, the lock mechanism 21 is provided inside the header case 23 of each landing 8, that is, on the hoistway 3 side of the header case 23. Here, the header case 23 is a member extending horizontally in the upper part of the three-way frame of the entrance / exit 15 of each landing 8 and accommodates various mechanisms for opening and closing the landing door 16 on the hoistway 3 side. ing. The lock mechanism 21 can lock the landing door 16 provided at the entrance 15 of the landing 8 of the elevator 2. The lock mechanism 21 includes a movable lever 25 and an engagement member 26. The movable lever 25 is installed on a door panel 24 that is a member that opens and closes at the landing door 16. The engaging member 26 is fixed to the header case 23 directly or indirectly. The engagement member 26 is a so-called interlock catch (interlock hook), and is formed in a concave shape with the upper part opened. The lock mechanism 21 can lock (lock) the landing door 16 in the closed position by engaging the movable lever 25 with the engagement member 26.

  As shown in FIGS. 3, 4, and 5, the movable lever 25 is a so-called interlock that includes a lever body 27, a fixed roller 28 as a pair of rollers, a movable roller 29, and the like. The lever main body 27 is a linear plate member, provided with an engaging portion (latch portion) 30 that can be engaged with the engaging member 26 at one end portion, and provided with a fixed roller 28 and a movable roller 29 at the other end portion. It is done. In the lock mechanism 21, one of the pair of fixed rollers 28 and the movable roller 29 rotates around the other fixed roller 28, so that the lever body 27 performs an unlocking operation, and the movable lever 25. And the engagement member 26 are released, and the landing door 16 is released.

  Both the fixed roller 28 and the movable roller 29 are formed in a cylindrical shape having substantially the same shape. The fixed roller 28 and the movable roller 29 are configured to include shaft center portions 28a and 29a and outer peripheral portions 28b and 29b, respectively. The shaft center portions 28a and 29a are formed of metal or the like and form a cylindrical shaft center. The outer peripheral portions 28b and 29b are formed of a cylindrical cushioning member such as rubber or plastic, and cover the outer peripheral surfaces of the shaft center portions 28a and 29a in a thin film shape.

  The pair of fixed roller 28 and movable roller 29 are provided side by side along the vertical direction, and at least a part thereof is provided overlapping the horizontal direction. Both the fixed roller 28 and the movable roller 29 are fixed to the lever body 27. Here, the pair of fixed roller 28 and movable roller 29 are provided such that the movable roller 29 is provided on the upper side in the vertical direction and the fixed roller 28 is provided on the lower side in the vertical direction. In addition, the pair of fixed roller 28 and movable roller 29 are eccentric from each other with the center axis slightly deviated from the horizontal direction. Here, the movable roller 29 is slightly displaced from the fixed roller 28 toward the engaging portion 30. Yes.

  The fixed roller 28 becomes the center of the rotation operation of the lever body 27 when the movable lever 25 is unlocked. The movable roller 29 rotates around the fixed roller 28 together with the lever body 27 when the movable lever 25 is unlocked. The fixed roller 28 has an axial center portion 28 a that passes through the movable lever 25 and is fixed to the mounting plate 31 on the back side.

  The movable lever 25 has the lever body 27 and the fixed roller in the entire mounting plate 31 so that the central axis of the rotation, in other words, the central axis of the fixed roller 28 and the movable roller 29 coincides with the depth direction of the hoistway 3. 28, the movable roller 29, and the like are integrally fixed to the upper portion of the door panel 24 through a hanger or the like. Accordingly, the movable lever 25 is opened and closed integrally with the door panel 24 in the unlocked state.

  In the movable lever 25 of the lock mechanism 21 configured as described above, the engaging portion 30 serves as the distal end portion, the fixed roller 28 serves as the base end portion of the rotation operation, and the movable roller 29 rotates around the fixed roller 28. Accordingly, the lever main body 27 performs an unlocking operation, that is, rotates around the fixed roller 28 as illustrated by an arrow in FIG. As a result, the lock mechanism 21 is lifted upward as the movable lever 25 rotates and is disengaged from the engaging member 26.

  Here, as shown in FIG. 3, the elevator door device 1 is configured to apply a rotating force to the movable roller 29 and rotate the lever main body 27 when the movable lever 25 is unlocked. An engagement device 32 called a razor is provided. The engaging device 32 mechanically opens the lock mechanism 21 when the landing door 16 is opened in conjunction with the car door 18 in a state in which the car 4 is landing at a predetermined landing position of each landing 8. It is for making it into a locked state. The engaging device 32 includes a pair of engaging members 33 and engaging members 34.

  The engaging member 33 and the engaging member 34 are provided on the car 4 and move up and down the hoistway 3 together with the car 4. The engaging member 33 and the engaging member 34 are linear members along the vertical direction, and are provided at intervals along the horizontal direction. The engaging member 33 and the engaging member 34 are located on both sides of the fixed roller 28 and the movable roller 29 with respect to the horizontal direction in a state where the car 4 is landed at a predetermined landing position of each landing 8. So as to be positioned at the top of the car 4. That is, the fixed roller 28 and the movable roller 29 are arranged between the engaging member 33 and the engaging member 34 with respect to the horizontal direction when the car 4 is landed at a predetermined landing position of each landing 8. To position. Further, the engaging member 33 and the engaging member 34 are provided so as to be able to approach and separate from each other in the horizontal direction in conjunction with the opening and closing movement of the car door 18.

  The engaging device 32 configured as described above is engaged with the engaging member 33 in conjunction with the opening operation of the car door 18 in a state where the car 4 is landed at a predetermined landing position of each landing 8. By the relative movement of the member 34, the interval between the engaging member 33 and the engaging member 34 is narrowed, the engaging member 34 contacts the fixed roller 28, and the engaging member 33 contacts the movable roller 29. At this time, since the outer peripheral portions 28b and 29b are formed of buffer members, the fixed roller 28 and the movable roller 29 appropriately suppress the impact when the engaging member 33 and the engaging member 34 come into contact with each other. Can do.

  Then, when the engaging device 32 moves so that the engaging member 33 and the engaging member 34 approach each other in a state where the engaging member 33 and the engaging member 34 are in contact with the fixed roller 28 and the movable roller 29. The pair of engaging members 33 and 34 sandwich the pair of fixed roller 28 and movable roller 29 from both sides in the horizontal direction, so that a rotating force is applied to the movable roller 29. The lock mechanism 21 rotates about the fixed roller 28 while the movable roller 29 abuts on the engaging member 33 and rolls, and accordingly, the lever body 27 rotates about the fixed roller 28. Thus, the movable lever 25 is detached from the engaging member 26, the landing door 16 is released, and the landing door 16 is opened. As a result, in the elevator door device 1, the lock mechanism 21 is unlocked and the landing door 16 is opened in conjunction with the opening operation of the car door 18.

  The receiving member 22 of the present embodiment is provided on the lower side in the vertical direction of the fixed roller 28 on the lower side in the vertical direction among the pair of fixed rollers 28 and the movable roller 29 of the lock mechanism 21 described above. 28, to receive the fallen object from the movable roller 29. The receiving member 22 is formed as a plate-shaped plate member, and is fixed to the mounting plate 31.

  The receiving member 22 is positioned between the pair of engaging members 33 and 34 in the horizontal direction and outside the movable range of the pair of engaging members 33 and 34. Thereby, this elevator door apparatus 1 can appropriately perform the unlocking operation of the lock mechanism 21 without the receiving member 22 interfering with the horizontal movement operation of the engaging member 33 and the engaging member 34.

  More specifically, as illustrated in FIGS. 3 and 4, in the receiving member 22, the center position C <b> 1 in the horizontal direction and along the radial direction of the fixed roller 28 is equal to the center position C <b> 2 of the fixed roller 28. Typically, it is preferable to be disposed directly below the fixed roller 28. In addition, as illustrated in FIGS. 3 and 4, the receiving member 22 has a length L1 along the radial direction of the fixed roller 28 in the horizontal direction and the radial direction of the fixed roller 28, that is, It is preferable to set the diameter equal to the diameter φ of the fixed roller 28. As shown in FIGS. 4 and 5, the receiving member 22 is preferably set so that the end position on the hoistway 3 side is equivalent to the end position on the hoistway 3 side of the fixed roller 28. In other words, the receiving member 22 projects from the mounting plate 31 in the direction along the central axis of the fixed roller 28 (depth direction) so that the protruding amount L2 of the fixed roller 28 extends from the mounting plate 31 in the direction along the central axis. It is preferable to set it equal to the amount L3.

  Moreover, the receiving member 22 has the hollow 35 in the center part so that it may illustrate in FIG. 3, FIG. That is, the receiving member 22 has a bowl-shaped inclination toward the center portion in the horizontal direction and along the radial direction of the fixed roller 28, in other words, has a dogleg shape.

  Therefore, the elevator door device 1 is formed of, for example, rubber, plastic or the like, and the outer peripheral portions 28b and 29b of the fixed roller 28 and the movable roller 29 having relatively low heat resistance are burned and melted by heat such as fire. Even in this case, the receiving member 22 on the lower side of the fixed roller 28 receives the outer peripheral portions 28b and 29b (hereinafter sometimes referred to as “roller melt”) that have melted and dropped, so that the fixed roller 28, It can suppress that the roller melt which is the fallen thing from the movable roller 29 falls to a lower floor, or penetrate | invades into the hoistway 3 side.

  More specifically, in the elevator door device 1, when the outer peripheral portion 28 b of the fixed roller 28 melts, the roller melt is dropped on the receiving member 22 by its own weight and stored there. On the other hand, in the elevator door device 1, when the outer peripheral portion 29 b of the movable roller 29 on the upper side in the vertical direction starts to melt, the roller melt drops down on the fixed roller 28 on the lower side in the vertical direction due to its own weight. Then, it falls on the receiving member 22 and is stored there.

  At this time, when the roller melt drops onto the receiving member 22 through the fixed roller 28, the roller melt drops from the vicinity of the center position C2 (see FIGS. 3 and 4) located at the lowest position in the vertical direction on the fixed roller 28. However, since the center position C1 (see FIGS. 3 and 4) of the receiving member 22 is installed in accordance with the center position C2 of the fixed roller 28, the receiving member 22 is fixed to the fixed roller 28. It is possible to reliably receive the roller melt falling from the.

  For example, the elevator door device 1 includes a front end of a hall sill below the landing door 16 (a landing sill protruding toward the hoistway 3 side) and a car sill below the car door 18 (a car sill protruding toward the hoistway 3). Can be prevented from falling from a narrow portion (running clearance set wider than the protruding width of the fixed roller 28 and the movable roller 29) 36 (see FIG. 5), etc. An object can be prevented from falling to the lower floor or entering the hoistway 3 side.

  At this time, since the recess 35 in the central portion functions as a roller melt storage portion, the receiving member 22 can reliably store the roller melt that has fallen, and reliably suppress the downward fall. Can do. Since the outer peripheral portions 28b and 29b of the fixed roller 28 and the movable roller 29 are in a thin film shape with respect to the shaft center portions 28a and 29a, the total amount of the roller melt is extremely small, and the viscosity However, since the fluidity tends to be relatively low, basically, the roller melt can be reliably stored in the recess 35 of the receiving member 22.

  Further, the elevator door device 1 is configured such that the receiving member 22 is provided on the lower side of the fixed roller 28 in the positional relationship and the dimensional relationship as described above. Even if the receiving member 22 is melted and dropped, the receiving member 22 can reliably receive the melted roller, and the receiving member 22 is located between the pair of engaging members 33 and 34. It can be located outside the movable range of the engaging members 33, 34, and the receiving member 22 can be prevented from interfering with the unlocking operation by the locking mechanism 21 and the engaging device 32 and the raising / lowering operation of the car 4. it can.

  The elevator door device 1 configured as described above can lock the landing door 16 provided at the entrance 15 of the landing 8 of the elevator 2 and can also lock one of the pair of fixed rollers 28 and the movable roller 29. A lock mechanism 21 that performs an unlocking operation by rotating the movable roller 29 around the other fixed roller 28, and a pair of the fixed roller 28 and the fixed roller 28 that is below the vertical direction of the movable roller 29 in the vertical direction. A fixed roller 28 provided on the lower side, and a receiving member 22 that receives a fallen object from the movable roller 29. Therefore, the elevator door apparatus 1 can suppress the fallen object from the lock mechanism 21, and can lock the landing door 16 appropriately.

  In addition, the elevator door apparatus which concerns on embodiment mentioned above is not limited to embodiment mentioned above, A various change is possible in the range described in the claim.

  In the above description, the landing door is illustrated as a double door, but may be a single door.

  Although the receiving member demonstrated above was demonstrated as what has a hollow, it may have a groove part instead of a hollow.

  The elevator door device 1 described above changes the shape and arrangement of the receiving member 22 in accordance with the shape and arrangement of each roller even when the shape and arrangement of the fixed roller 28 and the movable roller 29 are changed. Thereby, the fall of a roller melt can be suppressed appropriately.

  According to the elevator door device according to the embodiment and the modification described above, falling objects from the locking device can be suppressed, and the landing door can be properly locked.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 Elevator door apparatus 2 Elevator 3 Hoistway 8 Platform 15, 17 Boarding gate 16 Platform door 18 Car door 21 Lock mechanism (locking device)
22 receiving member 23 header case 24 door panel 25 movable lever 26 engaging member 27 lever body 28 fixed roller (roller)
28a, 29a Axial portion 28b, 29b Outer peripheral portion 29 Movable roller
30 Engagement part 31 Mounting plate 32 Engagement device 33, 34 Engagement member 35 Dimple 36 Narrow part

Claims (6)

A locking device capable of locking the landing door provided at the entrance of the elevator landing, and performing an unlocking operation by rotating one of the pair of rollers around the other roller; and
A receiving member provided on a lower side in the vertical direction than a roller on a lower side in the vertical direction of the pair of rollers, and receiving a fallen object from the roller,
Elevator door device. The locking device is provided with a force by which a pair of engaging members along the vertical direction provided in the elevator car sandwich the pair of rollers from both sides in the horizontal direction to rotate the rollers.
The receiving member is positioned between the pair of engaging members with respect to the horizontal direction and outside the movable range of the pair of engaging members.
The elevator door device according to claim 1. The pair of rollers are arranged along the vertical direction, and at least a part of the rollers overlaps the horizontal direction.
The receiving member is set to a position in which the center position along the radial direction of the roller in the horizontal direction is equivalent to the center position of the roller on the lower side in the vertical direction.
The elevator door apparatus of Claim 1 or Claim 2. The receiving member is set in the horizontal direction and the length along the radial direction of the roller is equal to the length along the radial direction of the lower roller in the vertical direction.
The elevator door apparatus of any one of Claim 1 thru | or 3. In the receiving member, the end position on the hoistway side where the elevator car moves up and down is set to a position equivalent to the end position on the hoistway side of the lower roller in the vertical direction.
The elevator door apparatus of any one of Claim 1 thru | or 4. The receiving member has a recess in the central part,
The elevator door apparatus of any one of Claim 1 thru | or 5.

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