JP2016137997A - Door device for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door device for an elevator that eliminates car door low-speed operation time and thus enables shortening of door opening time in a door opening operation after landing of a car.SOLUTION: A door device for an elevator includes: a door panel that comprises a car door panel (1) for opening/closing a gateway and a landing door panel (14); a motor (9); a belt (7) for transmitting driving force of the motor; car door engagement vanes (12) provided on the car door panel side to connect the car door panel with the landing door panel; and a landing roller (13) provided on the landing door panel side. The car door engagement vane is fixed to the belt. The door device for the elevator further includes: a car door side contact detection section (25) for detecting that the car door engagement vane and the landing roller come into contact with each other during an opening operation of the door panel; and door connection mechanism sections (26, 27) for connecting the car door engagement vane with the car door panel in synchronization with the detection of the contact.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a door device that opens and closes an elevator door panel, and more particularly to an elevator door device having a configuration for shortening the door opening time.

  There is a conventional technique for shortening the time from the start of the door opening to the engagement by grasping the belt that transmits the driving force of the motor, and the car engagement vane moves faster than the car door panel when the car door is driven (for example, , See Patent Document 1).

JP 2006-103882 A

However, the prior art has the following problems.
In the elevator door, from the viewpoint of cost, the motor as a drive source is attached only to the car door side, and the landing door is connected to the car door by an engagement device, thereby driving the car door and the landing door. Open and close the door.

  The engagement device is composed of a car-side car engagement vane and a landing-side landing roller, and is referred to as an engagement gap so that the two do not come into contact with each other when the elevator car is lifted and the equipment is damaged. A gap is provided. This engagement gap is periodically checked during installation and maintenance so as to be maintained within proper specifications.

  Then, when the door is opened after the car is landed, the motor generates a driving force to drive the car door, and then the car door and the landing door are connected via the engaging device. At this time, the door panel vibrates due to the collision between the car door mass and the landing door mass at the engaging device. In order to reduce such vibration, it is necessary to operate the car door and the landing door at a low speed in the section of the engagement gap described above. As a result, there is a problem that the door opening time becomes long.

  In patent document 1, when a car door door is opened, it has a structure which operates a car engagement vane faster than the opening speed of a door panel. By having such a structure, the low speed operation time in the section of the engagement gap can be shortened, and the time required for opening the door can be shortened.

  However, since such a structure of Patent Document 1 is interlocked with the operation of the car door, the car door low speed operation time cannot be eliminated. Moreover, in Patent Document 1, when the speed of the car engagement vane is increased in order to increase the time reduction effect, a collision sound between the car engagement vane and the landing roller is generated. For this reason, there is also a problem that the effect of shortening the door opening time is limited.

  The present invention has been made to solve the above-described problems, and an elevator capable of shortening the door opening time by eliminating the car door low-speed operation time in the door opening operation after the car is landed. The purpose is to obtain a door device.

  An elevator door device according to the present invention includes a door panel configured by a car door panel and a landing door panel that opens and closes an entrance, a motor that outputs a driving force for opening and closing the door panel, and a belt that transmits the driving force of the motor. An elevator door device comprising: a car door engaging vane provided on the car door panel side and a landing roller provided on the landing door panel side for connecting the car door panel and the landing door panel; The vane is fixed to the belt via the belt gripping part, and the car door side contact detection part that detects that the car door engagement vane and the landing roller are in contact with each other during the door panel opening operation, and the contact detection The car door engaging vane is synchronized with the detection that the car door engaging vane and the landing roller are in contact with each other. In which further comprising a door coupler mechanism for coupling the car door panel.

  According to the present invention, in the door device in which the landing door is provided with rollers, immediately after the door is opened after the landing of the car, only the car engaging vane is driven by the driving force of the motor, and the car engaging vane is on the landing door side. After contacting with the roller, the car engagement vane, the car door panel, and the landing door panel are connected at the same time so that the car door and the landing door are integrated. As a result, it is possible to obtain an elevator door device capable of eliminating the low-speed operation time of the car door and shortening the door opening time in the door opening operation after the car is landed.

1 is an overall schematic diagram showing an elevator car door drive device according to Embodiment 1 of the present invention; BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall schematic diagram illustrating an elevator landing door drive device according to a first embodiment of the present invention. It is a schematic diagram of the engagement gap by Embodiment 1 of this invention. It is a block diagram of the door engaging apparatus before the door opening start by Embodiment 1 of this invention. It is a block diagram of the door engagement apparatus at the time of door opening engagement by Embodiment 1 of this invention. It is a figure for demonstrating the reduction effect of the door vibration by Embodiment 1 of this invention. It is a block diagram of the door engaging apparatus before the door opening start by Embodiment 2 of this invention. It is a block diagram of the door engagement apparatus at the time of door opening engagement by Embodiment 2 of this invention. It is a block diagram of the door engaging apparatus before the door opening start by Embodiment 3 of this invention. It is a block diagram of the door engagement apparatus at the time of door opening engagement by Embodiment 3 of this invention.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of an elevator door device of the invention will be described with reference to the drawings.

Embodiment 1 FIG.
FIG. 1 is an overall schematic diagram showing an elevator car door drive apparatus according to Embodiment 1 of the present invention. At the upper end of the car-side door panel 1 that opens and closes the doorway, a hanging hand 2 is provided. On the upper edge of the entrance / exit, there is provided a girder 3 whose longitudinal direction is arranged in the horizontal direction. In addition, in FIG. 1, the case where the door panel 1 is comprised by the two door panels 1A and 1B is illustrated.

  The car 3 is provided with a car door guide rail 4 so as to be arranged in the longitudinal horizontal direction. Then, the hanger roller 5 provided on the hanger 2 moves along the rail 4 to guide the horizontal movement of the hanger 2, that is, the opening / closing movement of the door panel 1.

  Further, an up thrust roller 11 provided on the suspension 2 is attached below the rail 4 to prevent the hanger roller 5 from falling off the rail 4. The girders 3 are provided with pulleys 6A and 6B that are separated from each other, and the endless belt 7 is wound around both the pulleys 6A and 6B, thereby being stretched with a desired tension. Yes.

  The belt grip 8 has one end connected to the belt 7 and the other end connected to the car engagement vane 12. The motor 9 drives the pulley 6A. The belt 7 is a conductive belt, and generally a toothed belt or a V-belt is used. The attachment tension of the endless belt 7 can be adjusted to a desired value by changing the distance between the pulleys 6A and 6B in which grooves corresponding to the belt shape are processed.

  By driving the motor 9, the corresponding pulley 6 </ b> A rotates, the belt 7 is driven, and the car engagement vane 12 connected via the belt grip 8 is also driven. The car engagement vane 12 is connected to the door panel 1A by a mechanism described later, and the driving force is transmitted to the other door panel 1B via an interlocking rope or a belt. As a result, the doors are opened and closed by driving the motor 9 by operating the door panels 1A and 1B in the same direction.

  The configuration shown in FIG. 1 is a single-open door mechanism, but in a double-open door, the door panel 1A to which the driving force from the car engagement vane 12 is transmitted and the other door panel 1B are connected to an interlocking rope or belt. The doorways may be opened and closed by operating in opposite directions.

  Generally, in the case of a single door, the magnitude of the speed of the door panel 1B is half that of the door panel 1A. In the case of the double door, although the direction is different, the magnitude of the speed is equal between the door panels 1A and 1B. It becomes.

  Further, when the elevator car is landed and the floor heights of the car door and the landing door are approximately the same, if the motor 9 is driven, the car engaging vane 12 and the landing roller 13 are brought into contact and engaged. The driving force of the car door can be transmitted to the landing door. The landing roller 13 is illustrated in FIG. 2 described later.

  Next, FIG. 2 is an overall schematic diagram showing the elevator landing door drive apparatus according to Embodiment 1 of the present invention. A suspension 15 is provided at the upper end of the door panel 14 on the landing side that opens and closes the doorway shown in FIG. At the upper edge of the entrance / exit, there is provided a girder 16 whose length is arranged in the horizontal direction.

  The girder 16 is provided with a landing door guide rail 17 so as to be arranged in the longitudinal horizontal direction. Further, the hanger roller 18 provided on the hanger 15 moves along the rail 17 to guide the horizontal movement of the hanger 15, that is, the opening / closing movement of the door panel 14.

  Further, an up thrust roller 19 provided on the suspension 15 is attached below the rail 17 to prevent the hanger roller 18 from falling off the rail 17. Pulleys 20 </ b> A and 20 </ b> B are provided apart from each other on the girder 16, and the interlocking rope 21 is wound around both pulleys 20 </ b> A and 20 </ b> B, and is in a state of being tensioned with a desired tension.

  The hanging hand of the door panel 14 </ b> A is connected to the interlocking rope 21. The interlocking rope 21 may be a belt. The driving force is transmitted to the other door panel 14B and the door panel 14A via another interlocking rope or belt different from the interlocking rope 21. As a result, the door panels 14A and 14B operate in the same direction. Become.

  The configuration shown in FIG. 2 is a one-sided door mechanism, but in a double door, the door panel 14A and the other door panel 14B are moved in opposite directions via the interlocking rope 21 to open and close the doorway. do it.

  As described above, the driving force of the motor 9 acting on the landing roller 13 is transmitted to the door panels 14A and 14B, so that the landing door can be opened and closed by the driving of the motor 9.

  In addition, a door closing force generation mechanism using a weight or a spring (not shown) is attached to the landing door, and when the car is not landing, even when the landing door is opened, it is automatically closed. It is comprised so that mechanical external force may act.

  Similarly, a mechanical door closing force generation mechanism is also applied to the car door so that an infant does not pry open the car door and fall into the hoistway even if the motor is confined in the car and the electric driving force of the motor is lost. Is provided. A mechanical door opening force generating mechanism is attached to the car door so that the motor door does not have a driving force when fully opened, or the car door can be kept fully open only with a small driving force.

  FIG. 3 is a schematic diagram of the engagement gap according to the first embodiment of the present invention. Since the elevator car moves up and down in a hoistway (not shown), the car engaging vanes 12 attached to the car door panel 1 shown in FIG. 3 move in the hoistway. On the other hand, the landing roller 13 protrudes into the hoistway. Therefore, when the elevator car moves up and down, if it comes into contact with the car-side equipment, particularly the car engagement vanes 12, both of them will be damaged.

  Therefore, in the fully closed state of the door at the time of raising and lowering, as shown in FIG. 3A, the engagement gap 22 that is the distance between the car engagement vane 12 and the landing roller 13 is kept constant. It is necessary to adjust the mechanical system. If the engagement gap 22 is short, there is a demerit that there is a high possibility that the device will be damaged when a setting error at the time of installation, a shape change due to secular change, a deformation of the car door or the landing door, or the like occurs.

  On the other hand, when the door is opened, when the car door and the landing door are engaged, the mass of the car door collides with the mass of the landing door. For this reason, the door opening speed at the time of engagement needs to be low.

  If the engagement gap is short, the section to be driven at a low speed can be set short, and there is an advantage of shortening the door opening time from the viewpoint of opening and closing the door. On the contrary, if the engagement gap 22 is long, there is a merit that the possibility of equipment damage is reduced when a setting error at the time of installation, a shape change due to aging, a deformation of a car door or a landing door, etc. occurs. .

  Generally, the specification of the engagement gap 22 is determined by the size of the distance and the allowable accuracy range considering the variation in each floor. However, the smaller the allowable accuracy is, the higher is the difficulty of installation work for adjusting the engagement gap 22 between the car door and the entire floor of the hall.

  When fully closed, the car engagement vanes 12 are separated by the distance between the landing roller 13 and the engagement gap 22. Then, when the motor starts to open by the door opening command, the car engaging vane 12 moves in the door opening direction, and when the car engaging vane 12 moves the distance corresponding to the engagement gap in the door opening direction, the landing It contacts the landing roller 13 of the door. When the contact is detected, the car engagement vane 12 grips the car door, so that the car door and the landing door are connected and driven in an integrated state.

  The car engagement vane 12 may be a system in which the landing roller 13 of the landing door is sandwiched between a plurality of vanes, or a system in which a plurality of rollers sandwich the car engagement vane 12 to transmit a driving force.

  Further, the distance between the car engagement vanes is fixed when fully closed, but the distance may vary with the opening and closing operation. The engagement gap 22 in FIG. 3 indicates the distance between the fully closed car engaging vane 12 and the landing roller 13, but it may be the distance between the fully open car engaging vane 12 and the landing roller 13. In the following, the distance between the fully closed car engagement vane 12 and the landing roller 13 will be described as an engagement gap 22.

  FIG. 4 is a configuration diagram of the door engaging device before the opening of the door according to the first embodiment of the present invention. In FIG. 4, the fully-enclosed car engagement vane is represented by reference numeral 12A, and the fully-open car engagement vane is represented by reference numeral 12B.

  Here, the car engagement vane 12B on the fully open side is fixed to the car door panel and does not move, and there is a system in which the landing roller 13 is completely sandwiched according to the operation of the car engagement vane 12A. In the former non-moving method, a weight is attached to the landing door, and a mechanical door closing force always acts, so that the landing door landing roller 13 and the car engagement vane 12A always contact each other at the time of opening and closing. What is necessary is just to change the door opening and closing speed. On the other hand, in the latter completely sandwiching method, the car door and the landing door cannot be disconnected after the sandwiching is completed regardless of the door opening / closing speed.

  As shown in FIG. 4, in the fully closed state before the door door opening starts after the flooring of the car, the door motor 9 is used to counter the door opening force due to the car opening of the passenger in the car and the car vibration during the raising and lowering. A driving force is generated in the closing force direction. The driving force is transmitted to the car engagement vane 12A through the belt grip 8.

  The car engaging vane 12A generates a driving force in the door closing direction on the car door panel 1 by contacting the car engaging vane stopper 23A installed on the car door panel 1A. The car engagement vane stopper 23A may be an elastic body such as rubber or a rigid body such as a bolt.

  Generally, the mechanical door closing force acts in the vicinity of the car door panel fully closed in accordance with the electric door closing force due to the driving force of the motor 9, so that the sum of the electric door closing force and the mechanical door closing force is obtained. This is a resistance against the door opening force described above.

  When a door opening command is issued from the door control device 10, the door motor 9 generates a driving force in the door opening direction. The door motor 9 transmits the driving force in the door opening direction to the car engagement vane 12 </ b> A via the belt 7 and the belt grip 8.

  The car engagement vane 12A operates along a slide guide 24 for smoothly operating in the door opening / closing direction, and the operation direction is defined in the door opening direction or door closing direction. When the door motor 9 generates a driving force in the door opening direction, the car engagement vane 12A only until the car engagement vane 12A or the contact detection unit 25 attached to the car engagement vane 12A contacts the landing roller 13. Is driven, and the car door panel 1 does not operate.

  FIG. 5 is a configuration diagram of the door engaging device at the time of door opening engagement according to Embodiment 1 of the present invention. When the car engagement vane 12A comes into contact with the landing roller 13 (that is, when the car engagement vane 12A is engaged), the contact detection unit 25 attached to the car engagement vane 12 detects the contact between the two. Here, the contact detection unit 25 may be a mechanical or electrical switch or sensor. 4 and 5 show examples of mechanical switches.

  When the contact detection unit 25 comes into contact with the landing roller 13, the latch unit 26 rotates around the joint with the car engagement vane 12 </ b> A as the central axis according to the amount of movement of the contact detection unit 25. And by this rotation, the front-end | tip part of the latch part 26 is connected and integrated by mechanically engaging with the lock part 27 fixed to the car door panel 1A. Therefore, the driving force of the door motor 9 transmitted to the car engagement vane 12 </ b> A is applied to the car door panel 1 </ b> A via the latch part 26 and the lock part 27. Here, the latch part 26 and the lock part 27 correspond to a door coupling mechanism part.

  Then, when the driving force is transmitted to the car door panel 1A, the driving force is also transmitted to the car door panel 1B. In this way, the driving force is transmitted to the landing door panels 14A and 14B via the landing roller 13, so that the door can be opened and closed.

  4 and 5, the car engaging vane stoppers 23A and 23B are provided at the end of the lock part 27 or the slide guide 24. However, the car engaging vane stoppers 23A and 23B are not necessarily provided, and may be installed on the car door panel 1A. That's fine. Further, the car engagement vane stopper 23B is always installed on the door opening side with respect to the contact portion between the landing roller 13 and the car engagement vane 12A.

  In a state where the car is not landing on the landing floor and an opening / closing command is transmitted to the door motor 9, the landing roller 13 does not exist at a position in contact with the contact detection unit 25. Therefore, in this state, when the car engagement vane 12A comes into contact with the car engagement vane stopper 23A, the car engagement vane 12A and the car door panel 1A are connected, and only the car door can be opened and closed.

The engagement gap is between the car engagement vane 12A and the landing roller 13 when fully closed, and can be expressed by the following expression (1).
Engagement gap X = Gap reference distance (X0) ± Adjustment accuracy (Y) (1)

  Here, the adjustment accuracy (Y) generally needs to be adjusted in units of millimeters, and the degree of difficulty in installation work increases due to the size of the allowable accuracy.

  The engagement gap serves to prevent the car door device around the engagement device and the landing door device from contacting each other when the car is raised and lowered. Therefore, when the car is opened and closed, the car door and the landing door are connected via the engaging device (the car engaging vane 12 + the landing roller 13) after moving the distance corresponding to the engagement gap, and the landing door without the driving device is connected. Driving force will be transmitted.

The relationship of the following formula (2) is generally established for the masses of the door panel 1 and the car engagement vanes 12.
Car door panel mass, landing door panel mass (including roller) >> Cage engagement vane mass (2)

  The car door panel 1 and the landing door panel 14 are in the passenger's field of view, and it is desirable to avoid vibrations. Here, when the car door panel 1 and the landing door panel 14 collide, both are subjected to a large reaction force according to the mass of the colliding side from the law of conservation of momentum. For this reason, vibration is generated in at least one of the door panels.

  On the other hand, when the car engagement vane 12 that is overwhelmingly smaller than the door panel mass collides with the landing door panel 14, the reaction force acting on the landing door panel in the passenger's field of view is small. For this reason, vibration of the landing door panel 14 due to the collision hardly occurs.

In this case, a large reaction force acts on the car engagement vane 12 side. However, the car engagement vane 12 has the following two features different from the door panel.
(Feature 1) The car engagement vane 12 is located between the car door panel 1 and the landing door panel 14 and is not in view of the passenger.
(Characteristic 2) Further, the car engagement vane 12 is rigidly connected to the belt grip 8, and speed / position control by the motor 9 is easy.

  FIG. 6 is a diagram for explaining the effect of reducing door vibration according to the first embodiment of the present invention. Specifically, FIG. 6A on the left side shows a vibration occurrence state according to the prior art, and FIG. 6B on the right side shows a vibration reduction state according to the present invention. In both FIGS. 6A and 6B, the upper row shows the speed response of the car door, and the lower row shows the speed response of the landing door.

  In the case of a conventional mechanism in which the car engaging vane 12 is joined to the car door panel 1 immediately before the car engaging vane 12 and the landing roller 13 are engaged, as shown in FIG. Due to the collision at the time, door vibration occurs in at least one of the door panels.

  On the other hand, in the case of the mechanism of the present invention in which the car engagement vane 12 collides with the landing roller 13, the door panel vibration can be suppressed as shown in FIG. 6 (b).

  Further, from the viewpoint of appearance, since the car door panel 1 and the landing door panel 14 are in the passenger's field of view, it is desirable that both of them open and close completely in synchronization. The collision of the car door panel 1 with the landing door panel 14 as in the conventional mechanism means that the car door is driven in advance before the landing door is driven. Therefore, in the conventional mechanism, both are synchronized after engagement, but it cannot be said that they are completely synchronized in the entire opening / closing operation region.

  On the other hand, in the mechanism of the present invention having the configuration of FIGS. 4 and 5 in which only the car engagement vane 12A is driven by the driving force of the motor 9 and moved by the engagement gap 22 after the car has landed, the opening / closing operation is performed. In all the areas, a complete synchronous operation of the car door panel 1 and the landing door panel 14 can be realized.

  The effect of perfect synchronization includes the viewpoint of reducing the opening and closing time for passengers in addition to the appearance. The opening / closing time in the door control device 10 is a time for switching the opening / closing command and driving the motor 9. On the other hand, the opening / closing time for the passenger is the time during which the car door is operating in the passenger's field of view.

Therefore, in the former case,
Car door panel movement distance = engagement gap distance + landing door panel movement distance. In the latter case,
The moving distance of the car door panel = the moving distance of the landing door panel.

  In general, in the engagement gap section immediately after the door opening after the car landing, it is necessary to reduce the door opening speed as much as possible in order to reduce the collision noise between the car door and the landing door and the aforementioned reaction force. This is the reason why the gap reference distance X0 and the adjustment accuracy Y in the engagement gap cannot be set large from the viewpoint of shortening the door opening / closing time.

  In the configuration shown in FIGS. 4 and 5 of the present invention, since the car engagement vane 12A has an extremely small mass with respect to the door panels 1 and 14, conventionally, there is a restriction that the setting is slow in the engagement gap section. It is also possible to set the door opening speed faster.

  However, in order to avoid the occurrence of a collision sound, it is desirable that the configuration of the car engagement vane 12A has a minimum mass. Then, by adopting the configuration of the present invention, it is possible to set the gap reference distance X0 and the adjustment accuracy Y in the engagement gap to be larger than before. As a result, adjustment accuracy can be relaxed.

  In addition, according to the structure of this Embodiment 1, when the contact detection part 25 is an electrical switch or a sensor, a detection signal can be transmitted to the door control apparatus 10. FIG. In this case, the door control device 10 can calculate the time from the start of the door opening until the timing of engagement.

  As a result, the distance of the engagement gap 22 that is different for each floor can be recognized by the door control device 10 from the rotation amount of the motor 9. Therefore, the engagement gap 22 that is normally measured by a visual inspection by the maintenance staff can be quantitatively performed using the door control device 10, and the maintenance load can be reduced.

Embodiment 2. FIG.
FIG. 7 is a configuration diagram of the door engaging device before the opening of the door according to the second embodiment of the present invention. The landing roller 13 may have an interlock function that serves to lock and unlock the landing door. At this time, the landing roller 13 is divided into an upper landing roller 13A and a lower landing roller 13B as shown in FIG.

  The upper landing roller 13A is set at a position closer to the door than the lower landing roller 13B by a roller spring 28. When the car-engaging vane 12A is driven in the door opening direction, it first contacts the upper landing roller 13A. Then, the upper landing roller 13A after the contact can move to a position equivalent to the lower landing roller 13B in the opening / closing direction. A landing door interlock (not shown) is locked and unlocked according to the amount of movement.

  The overall schematic diagram of the car door drive device using the above-described engagement device in the second embodiment of the door is the same as FIG. 1 shown in the first embodiment. At the upper end of the car-side door panel 1 that opens and closes the doorway, a hanging hand 2 is provided. On the upper edge of the entrance / exit, there is provided a girder 3 whose longitudinal direction is arranged in the horizontal direction.

  The car 3 is provided with a car door guide rail 4 so as to be arranged in the longitudinal horizontal direction. Then, the hanger roller 5 provided on the hanger 2 moves along the rail 4 to guide the horizontal movement of the hanger 2, that is, the opening / closing movement of the door panel 1.

  Further, an up thrust roller 11 provided on the suspension 2 is attached below the rail 4 to prevent the hanger roller 5 from falling off the rail 4. The girders 3 are provided with pulleys 6A and 6B that are separated from each other, and the endless belt 7 is wound around both the pulleys 6A and 6B, thereby being tensioned with a predetermined tension. Yes.

  The belt grip 8 has one end connected to the belt 7 and the other end connected to the car engagement vane 12. The motor 9 drives the pulley 6A. The belt 7 is a conductive belt, and generally a toothed belt or a V-belt is used. The attachment tension of the endless belt 7 can be adjusted to a desired value by changing the distance between the pulleys 6A and 6B in which grooves corresponding to the belt shape are processed.

  By driving the motor 9, the corresponding pulley 6 </ b> A rotates, the belt 7 is driven, and the car engagement vane 12 connected via the belt grip 8 is also driven. The car engagement vane 12 is connected to the door panel 1A, and the driving force is transmitted to the other door panel 1B via an interlocking rope or a belt. As a result, the doors are opened and closed by driving the motor 9 by operating the door panels 1A and 1B in the same direction.

  The configuration shown in FIG. 1 is a single-open door mechanism, but in a double-open door, the door panel 1A to which the driving force from the car engagement vane 12 is transmitted and the other door panel 1B are connected to an interlocking rope or belt. The doorways may be opened and closed by operating in opposite directions.

  Generally, in the case of a single door, the magnitude of the speed of the door panel 1B is half that of the door panel 1A. In the case of the double door, although the direction is different, the magnitude of the speed is equal between the door panels 1A and 1B. It becomes.

  Further, when the elevator car is landed and the floor heights of the car door and the landing door are approximately the same, if the motor 9 is driven, the car engaging vane 12 and the landing roller 13 are brought into contact and engaged. The driving force of the car door can be transmitted to the landing door.

  The overall schematic diagram of the landing door drive device using the door engaging device in the second embodiment described above is the same as FIG. 2 shown in the first embodiment. A suspension 15 is provided at the upper end of the door panel 14 on the landing side that opens and closes the doorway shown in FIG. At the upper edge of the entrance / exit, there is provided a girder 16 whose length is arranged in the horizontal direction.

  The girder 16 is provided with a landing door guide rail 17 so as to be arranged in the longitudinal horizontal direction. Further, the hanger roller 18 provided on the hanger 15 moves along the rail 17 to guide the horizontal movement of the hanger 15, that is, the opening / closing movement of the door panel 14.

  Further, an up thrust roller 19 provided on the suspension 15 is attached below the rail 17 to prevent the hanger roller 18 from falling off the rail 17. Pulleys 20 </ b> A and 20 </ b> B are provided apart from each other on the girder 16, and the interlocking rope 21 is wound around both pulleys 20 </ b> A and 20 </ b> B, and is in a state of being tensioned with a desired tension.

  The hanging hand of the door panel 14 </ b> A is connected to the interlocking rope 21. The interlocking rope 21 may be a belt. The driving force is transmitted to the other door panel 14B and the door panel 14A via another interlocking rope or belt different from the interlocking rope 21. As a result, the door panels 14A and 14B operate in the same direction. Become.

  The configuration shown in FIG. 2 is a one-sided door mechanism, but in a double door, the door panel 14A and the other door panel 14B are moved in opposite directions via the interlocking rope 21 to open and close the doorway. do it.

  As described above, the driving force of the motor 9 acting on the landing roller 13 is transmitted to the door panels 14A and 14B, so that the landing door can be opened and closed by the driving of the motor 9.

  In addition, a door closing force generation mechanism using a weight or a spring (not shown) is attached to the landing door, and when the car is not landing, even when the landing door is opened, it is automatically closed. It is comprised so that mechanical external force may act.

  In the door opening operation using the door shown in FIGS. 1 and 2, the contact to be detected by the contact detection unit 25 of FIG. 7 in the second embodiment is the contact with the lower landing roller 13B. The contact detector 25 only needs to contact the lower landing roller 13B, but this tolerance depends on the flooring accuracy of the car. Therefore, hereinafter, the configuration of the contact detection unit 25 will be described on the assumption that both the upper landing roller 13A and the lower landing roller 13B are in contact with the contact detection unit 25.

  As shown in FIG. 7, in the fully closed state before the door door opening starts after the flooring of the car, the door motor 9 is used to counter the door opening force due to the car opening of the passenger in the car and the car vibration during the raising and lowering. A driving force is generated in the closing force direction. The driving force is transmitted to the car engagement vane 12A through the belt grip 8.

  The car engaging vane 12A generates a driving force in the door closing direction on the car door panel 1 by contacting the car engaging vane stopper 23A installed on the car door panel 1A. The car engagement vane stopper 23A may be an elastic body such as rubber or a rigid body such as a bolt.

  Generally, the mechanical door closing force acts in the vicinity of the car door panel fully closed in accordance with the electric door closing force due to the driving force of the motor 9, so that the sum of the electric door closing force and the mechanical door closing force is obtained. This is a resistance against the door opening force described above.

  When a door opening command is issued from the door control device 10, the door motor 9 generates a driving force in the door opening direction. The door motor 9 transmits the driving force in the door opening direction to the car engagement vane 12 </ b> A via the belt 7 and the belt grip 8.

  The car engagement vane 12A operates along a slide guide 24 for smoothly operating in the door opening / closing direction, and the operation direction is defined in the door opening direction or door closing direction. When the door motor 9 generates a driving force in the door opening direction, only the car engagement vane 12A until the car engagement vane 12A or the contact detection unit 25 attached to the car engagement vane comes into contact with the landing roller 13. Driven, the car door panel 1 does not operate.

  The contact detection unit 25 according to the second embodiment is provided with a contact detection spring 29 having a spring stiffness that is harder than that of the roller spring 28. By setting the rigidity of the contact detection spring 29 as described above, it is possible to prevent the contact detection unit 25 from detecting contact when only the upper landing roller 13A moves.

  FIG. 8 is a configuration diagram of the door engaging device at the time of door opening engagement according to Embodiment 2 of the present invention. When the car engagement vane 12A comes into contact with the lower landing roller 13B (that is, when the car engagement vane 12A is engaged), the contact detection unit 25 attached to the car engagement vane 12 detects the contact between them. Here, the contact detection unit 25 may be a mechanical or electrical switch or sensor. 7 and 8 show examples of mechanical switches.

  When the contact detection unit 25 comes into contact with both the upper landing roller 13A and the lower landing roller 13B, the latch unit 26 uses the joint with the car engagement vane 12A as a central axis according to the amount of movement of the contact detection unit 25. Rotate. And by this rotation, the front-end | tip part of the latch part 26 is connected and integrated by mechanically engaging with the lock part 27 fixed to the car door panel 1A. Therefore, the driving force of the door motor 9 transmitted to the car engagement vane 12 </ b> A is applied to the car door panel 1 </ b> A via the latch part 26 and the lock part 27.

  Then, when the driving force is transmitted to the car door panel 1A, the driving force is also transmitted to the car door panel 1B. In this way, the driving force is transmitted to the landing door panels 14A and 14B via the upper landing roller 13A and the lower landing roller 13B, so that the door can be opened and closed.

  7 and 8, the car engaging vane stoppers 23A and 23B are provided at the end of the lock part 27 or the slide guide 24. However, the car engaging vane stoppers 23A and 23B are not necessarily provided at the end, and may be installed on the car door panel 1A. That's fine. Further, the car engagement vane stopper 23B is always installed on the door opening side with respect to the contact portions of the upper landing roller 13A, the lower landing roller 13B, and the car engagement vane 12A.

  In a state where the car is not landing on the landing floor and an opening / closing command is transmitted to the door motor 9, the upper landing roller 13A and the lower landing roller 13B are not present at positions where they come into contact with the contact detection unit 25. . Therefore, in this state, when the car engagement vane 12A comes into contact with the car engagement vane stopper 23A, the car engagement vane 12A and the car door panel 1A are connected, and only the car door can be opened and closed.

Embodiment 3 FIG.
In the third embodiment, an elevator door device having the same effect as that of the first embodiment and having a configuration of a door coupling mechanism portion different from that of the first embodiment will be described.

  FIG. 9 is a configuration diagram of the door engaging device before the opening of the door according to the third embodiment of the present invention. In FIG. 9, a fully-enclosed car engagement vane 12A and a fully-open car engagement vane 12B are shown.

  The car engaging vane 12A generates a driving force in the door closing direction on the car door panel 1 by contacting the car engaging vane stopper 23A installed on the car door panel 1A. The car engagement vane stopper 23A may be an elastic body such as rubber or a rigid body such as a bolt.

  When a door opening command is issued from the door control device 10, the door motor 9 generates a driving force in the door opening direction. The door motor 9 transmits the driving force in the door opening direction to the car engagement vane 12 </ b> A via the belt 7 and the belt grip 8.

  The car engagement vane 12A operates along a slide guide 24 for smoothly operating in the door opening / closing direction, and the operation direction is defined in the door opening direction or door closing direction. When the door motor 9 generates a driving force in the door opening direction, the car engagement vane 12A only until the car engagement vane 12A or the contact detection unit 25 attached to the car engagement vane 12A contacts the landing roller 13. Is driven, and the car door panel 1 does not operate.

  FIG. 10 is a configuration diagram of a door engaging device at the time of door opening engagement according to Embodiment 3 of the present invention. When the car engagement vane 12A comes into contact with the landing roller 13 (that is, when the car engagement vane 12A is engaged), the contact detection unit 25 attached to the car engagement vane 12A detects the contact between the two. Here, the contact detection unit 25 may be a mechanical or electrical switch or sensor. 9 and 10 show examples of mechanical switches.

  When the contact detection unit 25 comes into contact with the landing roller 13, the cam unit 30 moves in the horizontal direction around the joint with the car engagement vane 12 </ b> A according to the movement amount of the contact detection unit 25. As a result of this movement, the inclined cam portion 30 and the leading end portion of the latch portion 31 that moves in the vertical direction in contact with the inclination of the cam portion 30 are mechanically engaged with the lock portion 27 fixed to the car door panel 1A. Are connected and integrated.

  Therefore, the driving force of the door motor 9 transmitted to the car engagement vane 12 </ b> A is applied to the car door panel 1 </ b> A via the cam part 30, the latch part 31, and the lock part 27. Here, the latch part 31 and the lock part 27 correspond to a door coupling mechanism part. The latch portion 31 moves in the vertical direction along the slide portion 32 attached to the car engagement vane 12A.

  Then, when the driving force is transmitted to the car door panel 1A, the driving force is also transmitted to the car door panel 1B. In this way, the driving force is transmitted to the landing door panels 14A and 14B via the landing roller 13, so that the door can be opened and closed.

  In FIGS. 9 and 10, car engagement vane stoppers 23A and 23B are provided at the ends of the lock portion 27 or the slide guide 24, but they are not necessarily end portions and may be installed on the car door panel 1A. That's fine. Further, the car engagement vane stopper 23B is always installed on the door opening side with respect to the contact portion between the landing roller 13 and the car engagement vane 12A.

  In a state where the car is not landing on the landing floor and an opening / closing command is transmitted to the door motor 9, the landing roller 13 does not exist at a position in contact with the contact detection unit 25. Therefore, in this state, when the car engagement vane 12A comes into contact with the car engagement vane stopper 23A, the car engagement vane 12A and the car door panel 1A are connected, and only the car door can be opened and closed.

  1, 1A, 1B Car door panel, 2 Car door suspension hand, 3 Car door girder, 4 Car door guide rail, 5 Car door hanger roller, 6A, 6B Car door pulley, 7 Belt, 8 Belt grip, 9 Motor, 10 Door control Equipment, 11 Car door up thrust roller, 12, 12A, 12B Engagement vane, 13 landing roller, 13A upper landing roller, 13B lower landing roller, 14, 14A, 14B landing door panel, 15 landing door lifter, 16 landing door girder , 17 landing door guide rail, 18 landing door hanger roller, 19 landing door up thrust roller, 20A, 20B landing door pulley, 21 interlocking rope, 22 engagement gap, 23A, 23B car engagement vane stopper, 24 slide guide, 25 contact Detection part, 26 Latch part (Do Coupling mechanism), 27 lock portion (the door connecting mechanism portion), 28 roller spring 29 contacts the detection spring, 30 cam portion, 31 the latch portion (the door connecting mechanism) 32 slide portion.

Claims (4)

A door panel composed of a car door panel and a landing door panel for opening and closing the doorway;
A motor that outputs a driving force for opening and closing the door panel;
A belt for transmitting the driving force of the motor;
An elevator door device comprising: a car door engaging vane provided on the car door panel side and a landing roller provided on the landing door panel side for connecting the car door panel and the landing door panel;
The car door engaging vane is fixed to the belt via a belt gripping portion,
During the opening operation of the door panel, a car door side contact detection unit that detects that the car door engagement vane and the landing roller are in contact with each other;
A door connecting mechanism for connecting the car door engaging vane and the car door panel in synchronization with the contact detection unit detecting that the car door engaging vane and the landing roller are in contact with each other; An elevator door device further provided. The door connecting mechanism is
A lock portion fixed to the car door panel;
When the car door engaging vane and the landing roller are in contact with each other, the car door engaging vane is rotated about the joint portion of the car door engaging vane as a central axis and mechanically meshed with the lock part. And a latch portion for connecting the car vane and the car door panel,
The contact detection unit is composed of a mechanical switch by the latch unit,
The elevator door device according to claim 1, wherein the car door engagement vane and the car door panel are coupled by mechanically meshing the latch part with the lock part according to a movement amount of the latch part. The door connecting mechanism is
A lock portion fixed to the car door panel;
When the car door engaging vane and the landing roller come into contact with each other, the car door engaging vane moves along the joint portion with the car door engaging vane and mechanically meshes with the lock portion. And a latch part for connecting the car door panel,
The contact detection unit is composed of a mechanical switch by the latch unit,
The elevator door device according to claim 1, wherein the car door engagement vane and the car door panel are coupled by mechanically meshing the latch part with the lock part according to a movement amount of the latch part. The elevator door device according to claim 1, wherein the contact detection unit includes an electrical switch or a sensor and has a function of outputting detection information to the outside.

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