WO2024042565A1 - Landing door device for elevator - Google Patents

Abstract

Provided is a landing door device which is for an elevator and is capable of improving work efficiency for limiting the movement of the landing door in the door closing direction. This landing door device for an elevator comprises a landing door, a latch receiving member provided in a wall of a hoistway, and a latch provided in the landing door and hooked onto the latch receiving member, thereby limiting the movement of the landing door in the door closing direction. When the landing door moves with a car door, the landing door moves between a door closed position where the landing doorway is closed and a door open position where the landing doorway is open. When the landing door separately from the car door, the landing door moves between the door closed position and a door open lock position where the landing door has moved from the door open position by a previously set distance in the door opening direction. When the landing door is in the door open lock position, the latch is hooked onto the latch receiving member.

Description

Elevator landing door device

The present disclosure relates to an elevator landing door device.

Conventionally, an elevator landing door device is known that includes a landing door and a door stopper device provided on the wall of the hoistway. The door stopper device includes a rotation shaft, a door receiving member that rotates around the rotation shaft, and a stopper operation key. A keyhole into which a stopper operation key is inserted is formed in the rotating shaft. When the stopper operation key is operated with the stopper operation key inserted into the keyhole, the door receiving member restricts movement of the landing door in the door-opening position in the door-closing direction (for example, Patent Document (see 1).

JP2020-189726A

However, in the configuration described in Patent Document 1, in order for the door receiving member to restrict movement of the landing door in the door closing direction, the operator must move the landing door from the door closed position to the door open position. , the stopper operation key must be inserted into the keyhole to operate the stopper operation key. Therefore, there is a problem in that the work efficiency for restricting movement of the landing door in the door closing direction is poor.

The present disclosure has been made in order to solve the above-mentioned problems, and the purpose is to provide an elevator landing that can improve work efficiency for restricting movement of the landing door in the door closing direction. The present invention provides a door device.

An elevator landing door device according to the present disclosure is provided at a landing door, a latch receiving member provided on a wall of a hoistway, and a landing door, and the landing door moves in the door closing direction by being hooked on the latch receiving member. When the landing door moves with the car door, the landing door moves between the closed position where the landing door is closed and the open doorway where the landing door opens, and When the door is separated from the car door and moved, the landing door moves between the door closed position and the door open lock position, which is moved a preset distance in the door opening direction from the door open position. When the door is in the door open lock position, the latch engages the latch receiving member.

According to the elevator landing door device according to the present disclosure, it is possible to improve the work efficiency for restricting movement of the landing door in the door closing direction.

1 is a front view showing an elevator landing door device according to Embodiment 1. FIG. FIG. 2 is a rear view showing the elevator landing door device of FIG. 1; FIG. 3 is a rear view showing a state in which the landing door of FIG. 2 is in an open position. FIG. 3 is a rear view showing a state in which the landing door of FIG. 2 is in a door-open lock position. FIG. 7 is a rear view showing an elevator landing door device according to a second embodiment. FIG. 6 is a rear view showing a state in which the landing door of FIG. 5 is in a door-open lock position.

Embodiment 1.
FIG. 1 is a front view showing an elevator landing door device according to the first embodiment. FIG. 2 is a rear view showing the elevator landing door device of FIG. 1. FIG. The elevator hall door device according to the first embodiment includes a first hall door 1, a second hall door 2, a hanger case 3, a door rail 4, a first door hanger 5, a second door hanger 6, A pair of first hanger rollers 7 and a pair of second hanger rollers 8 are provided. Further, the elevator hall door device according to the first embodiment includes a hall sill 9, a first latch receiving member 10, a second latch receiving member 11, a first latch 12, and a second latch 13. ing.

A hall entrance/exit 141 is formed in the wall 14 of the hoistway. Each of the first landing door 1 and the second landing door 2 is a landing door. The first landing door 1 and the second landing door 2 open and close the landing entrance 141.

The elevator hall door device according to the first embodiment is a center-open type elevator hall door device. Each of the first landing door 1 and the second landing door 2 moves in the width direction D of the landing entrance 141. The first landing door 1 and the second landing door 2 are connected to each other via an interlocking rope (not shown). Therefore, the first landing door 1 and the second landing door 2 move at the same timing.

When the hall entrance 141 is closed by the first hall door 1 and the second hall door 2, half of the hall entrance 141 in the width direction D of the hall entrance 141 is closed by the first hall door 1. Further, when the landing entrance 141 is closed by the first landing door 1 and the second landing door 2, the other half of the landing entrance 141 in the width direction D of the landing entrance 141 is closed by the second landing door 2. There is.

The respective positions of the first hall door 1 and the second hall door 2 when the hall entrance/exit 141 is closed by the first hall door 1 and the second hall door 2 are defined as door closed positions.

FIG. 3 is a rear view showing the first landing door 1 and the second landing door 2 in FIG. 2 in the open position. The respective positions of the first landing door 1 and the second landing door 2 when the landing entrance/exit 141 is open are defined as door open positions.

When a car (not shown) is stopped on a floor where the first landing door 1 and the second landing door 2 are installed, the car door (not shown) is connected to the first landing door 1 and the second landing door via a connecting member (not shown). It moves while being connected to the landing door 2. Therefore, in this case, each of the first landing door 1 and the second landing door 2 moves together with the car door. As shown in FIGS. 2 and 3, when each of the first landing door 1 and the second landing door 2 moves together with the car door, each of the first landing door 1 and the second landing door 2 is in the closed position. and the door open position.

The direction in which the landing door moves from the door closed position to the door open position is the door opening direction, and the direction in which the landing door moves from the door open position to the door closing direction is the door closing direction. Therefore, in FIGS. 2 and 3, the right direction is the opening direction of the first landing door 1 and the closing direction of the second landing door 2. Moreover, in FIGS. 2 and 3, the left direction is the door opening direction of the second landing door 2, and the door closing direction of the first landing door 1.

FIG. 4 is a rear view showing a state in which the first landing door 1 and the second landing door 2 in FIG. 2 are each in the door-open lock position. In each of the first landing door 1 and the second landing door 2, a position moved by a preset distance in the door opening direction from the door opening position is defined as a door opening lock position.　

When the car is stopped on a floor different from the floor where the first landing door 1 and the second landing door 2 are installed, each of the first landing door 1 and the second landing door 2 is separated from the car door. and move. As shown in FIGS. 2 and 4, when each of the first landing door 1 and the second landing door 2 is separated from the car door and moved, each of the first landing door 1 and the second landing door 2 is Move between the door closed position and the door open lock position.

The hanger case 3 is fixed to the wall 14 of the hoistway. The hanger case 3 is arranged along the width direction D of the hall entrance/exit 141.

The door rail 4 is fixed to the hanger case 3. The door rail 4 is arranged along the width direction D of the hall entrance/exit 141.

The first door hanger 5 is attached to the top of the first landing door 1. Each of the pair of first hanger rollers 7 is rotatably provided on the first door hanger 5. The pair of first hanger rollers 7 are arranged apart from each other in the width direction D of the hall entrance/exit 141. Each of the pair of first hanger rollers 7 is placed on the door rail 4. The first landing door 1 is supported by the door rail 4 via a first door hanger 5 and a pair of first hanger rollers 7. While the pair of first hanger rollers 7 roll on the door rail 4, the first landing door 1 moves in the width direction D of the landing entrance 141.

The second door hanger 6 is attached to the top of the second landing door 2. Each of the pair of second hanger rollers 8 is rotatably provided on the second door hanger 6. The pair of second hanger rollers 8 are arranged apart from each other in the width direction D of the hall entrance/exit 141. Each of the pair of second hanger rollers 8 is placed on the door rail 4. The second landing door 2 is supported by the door rail 4 via a second door hanger 6 and a pair of second hanger rollers 8. While the pair of second hanger rollers 8 roll on the door rail 4, the second landing door 2 moves in the width direction D of the landing entrance 141.

The landing sill 9 is fixed to the wall 14 of the hoistway. The hall sill 9 constitutes the bottom surface of the hall entrance/exit 141. A sill groove (not shown) is formed on the upper surface of the landing sill 9. The sill groove of the landing sill 9 is along the width direction D of the landing entrance 141. The lower end portions of the first landing door 1 and the second landing door 2 are inserted into the sill groove of the landing sill 9 from above. Thereby, movement of each of the first hall door 1 and the second hall door 2 in the depth direction of the hall entrance/exit 141 is restricted. The depth direction of the hall entrance/exit 141 is a direction perpendicular to the width direction D of the hall entrance/exit 141 when viewed from above.

Each of the first latch receiving member 10 and the second latch receiving member 11 is a latch receiving member provided on the wall 14 of the hoistway. In the elevator landing door device according to the first embodiment, each of the first latch receiving member 10 and the second latch receiving member 11 is provided on the wall 14 of the hoistway via the hanger case 3. Note that each of the first latch receiving member 10 and the second latch receiving member 11 may be attached to the wall 14 of the hoistway without using the hanger case 3. In this case, holes are formed in the wall 14 of the hoistway for attaching each of the first latch receiving member 10 and the second latch receiving member 11.

Each of the first latch 12 and the second latch 13 is a latch provided on the landing door. The first latch 12 is provided on the first landing door 1. Note that the first latch 12 may be provided on the first landing door 1 via the first door hanger 5. The second latch 13 is provided on the second landing door 2. Note that the second latch 13 may be provided on the second landing door 2 via the second door hanger 6.

When the first latch 12 is engaged with the first latch receiving member 10, the first latch 12 restricts movement of the first landing door 1 in the door closing direction. When the second latch 13 is engaged with the second latch receiving member 11, the second latch 13 restricts movement of the second landing door 2 in the door closing direction.

The first latch 12 and the first latch receiving member 10 are each arranged so that the first latch 12 is engaged with the first latch receiving member 10 when the first landing door 1 is in the door-open lock position. The second latch 13 and the second latch receiving member 11 are each arranged so that the second latch 13 is engaged with the second latch receiving member 11 when the second landing door 2 is in the door open lock position.

By pushing the first landing door 1 in the door opening direction of the first landing door 1 while the first landing door 1 is in the door opening lock position, the first latch 12 is released from the first latch receiving member 10. It is now possible to do so.

As a configuration in which the first latch 12 is released from the first latch receiving member 10, for example, when the first landing door 1 is pushed in the door opening direction, the first latch 12 is released from the first latch receiving member 10. 12 is shifted in the depth direction of the hall entrance/exit 141. By shifting the first latch 12 with respect to the first latch receiving member 10 in the depth direction of the landing entrance/exit 141, the engagement of the first latch 12 with respect to the first latch receiving member 10 is released, and the first landing door 1 is closed. be able to move in the direction.

When the second landing door 2 is pushed in the door opening direction of the second landing door 2 while the second landing door 2 is in the door opening lock position, the second latch 13 is released from the second latch receiving member 11. It is now possible to do so.

As a configuration in which the second latch 13 is released from the second latch receiving member 11, for example, when the second landing door 2 is pushed in the door opening direction, the second latch 13 is released from the second latch receiving member 11. 13 is shifted in the depth direction of the hall entrance/exit 141. By shifting the second latch 13 with respect to the second latch receiving member 11 in the depth direction of the hall entrance/exit 141, the second latch 13 is released from the second latch receiving member 11, and the second hall door 2 is closed. be able to move in the direction.

Next, a procedure for operating the elevator hall door device according to Embodiment 1 to open the hall entrance/exit 141, maintain the open state of the hall entrance/exit 141, and close the hall entrance/exit 141 will be described. First, the worker stops the car at a floor different from the floor where the first landing door 1 and the second landing door 2 are installed. Thereafter, the worker moves each of the first landing door 1 and second landing door 2 from the door closed position to the door open lock position by pushing each of the first landing door 1 and the second landing door 2 in the door opening direction. let

When the first landing door 1 is in the door open lock position, the first latch 12 is engaged with the first latch receiving member 10. This restricts movement of the first landing door 1 from the door-opening lock position to the door-closing direction. As a result, the position of the first landing door 1 is maintained at the door-open lock position.

When the second landing door 2 is in the door open lock position, the second latch 13 is engaged with the second latch receiving member 11. This restricts movement of the second landing door 2 from the door-opening lock position to the door-closing direction. As a result, the position of the second landing door 2 is maintained at the door-open lock position.

By maintaining the positions of the first landing door 1 and the second landing door 2 at the door-open lock position, the landing entrance/exit 141 is maintained in an open state. This allows the worker to perform maintenance and inspection work on the elevator while riding on the ceiling of the car, and also allows the worker to enter the pit (not shown) and perform maintenance and inspection work on the elevator.

After the elevator maintenance and inspection work is completed, the worker pushes each of the first landing door 1 and the second landing door 2 in the door opening direction. Thereby, the engagement of the first latch 12 with respect to the first latch receiving member 10 is released, and the engagement of the second latch 13 with respect to the second latch receiving member 11 is released. As a result, each of the first landing door 1 and the second landing door 2 moves from the door open lock position to the door closed position. With the above, the procedure of opening the hall entrance/exit 141, maintaining the open state of the hall entrance/exit 141, and closing the hall entrance/exit 141 is completed.

As described above, the elevator landing door device according to the first embodiment includes the first landing door 1, the first latch receiving member 10, and the first latch 12. The first latch receiving member 10 is provided on the wall 14 of the hoistway. The first latch 12 is provided on the first landing door 1. When the first latch 12 is engaged with the first latch receiving member 10, the first latch 12 restricts movement of the first landing door 1 in the door closing direction. When the first landing door 1 moves together with the car door, the first landing door 1 moves between the door closed position and the door open position. When the first landing door 1 is separated from the car door and moved, the first landing door 1 moves between the door closed position and the door open lock position. When the first landing door 1 is in the door open lock position, the first latch 12 is engaged with the first latch receiving member 10. According to this configuration, when the worker moves the first landing door 1 from the door closed position to the door open lock position, the first landing door 1 in the door open lock position is restricted from moving in the door closing direction. can do. This improves the work efficiency for restricting movement of the first landing door 1 in the door closing direction, compared to a configuration in which the stopper operation key is inserted into the keyhole to move the door receiving member. can.

Further, the elevator hall door device according to the first embodiment includes a second hall door 2, a second latch receiving member 11, and a second latch 13. The second latch receiving member 11 is provided on the wall 14 of the hoistway. The second latch 13 is provided on the second landing door 2. When the second latch 13 is engaged with the second latch receiving member 11, the second latch 13 restricts movement of the second landing door 2 in the door closing direction. When the second landing door 2 moves together with the car door, the second landing door 2 moves between the door closed position and the door open position. When the second landing door 2 is separated from the car door and moved, the second landing door 2 moves between the door closed position and the door open lock position. When the second landing door 2 is in the door open lock position, the second latch 13 is engaged with the second latch receiving member 11. According to this configuration, when the worker moves the second landing door 2 from the door-closed position to the door-open lock position, the movement of the second landing door 2 in the door-open lock position is restricted from moving in the door-closing direction. can do. This improves the work efficiency for restricting movement of the second landing door 2 in the door closing direction, compared to a configuration in which the door receiving member is moved by inserting the stopper operating key into the keyhole. can.

Further, in the elevator hall door device according to the first embodiment, when the first latch 12 is pushed in the door opening direction with the first hall door 1 in the door opening lock position, the first latch receiving member 10 is The first latch 12 is released. According to this configuration, when the worker pushes the first landing door 1 in the door opening direction, the first landing door 1 in the door opening lock position can be moved in the door closing direction. This improves the work efficiency for releasing the restriction on the movement of the first landing door 1 in the door closing direction, compared to a configuration in which the door receiving member is moved by inserting the stopper operation key into the keyhole. I can do it.

Further, in the elevator landing door device according to the first embodiment, when the second latch 13 is pushed in the door opening direction with the second landing door 2 in the door opening lock position, the second latch receiving member 11 is The second latch 13 is released. According to this configuration, when the worker pushes the second landing door 2 in the door opening direction, the second landing door 2 in the door opening lock position can be moved in the door closing direction. This improves the work efficiency for releasing the restriction on the movement of the second landing door 2 in the door closing direction, compared to a configuration in which the door receiving member is moved by inserting the stopper operation key into the keyhole. I can do it.

Furthermore, in the elevator landing door device according to the first embodiment, the first latch receiving member 10 is provided on the wall 14 of the hoistway via the hanger case 3. According to this configuration, the first latch receiving member 10 can be provided in the wall 14 of the hoistway without forming a hole in the wall 14 of the hoistway for attaching the first latch receiving member 10.

Further, in the elevator landing door device according to the second embodiment, the second latch receiving member 11 is provided on the wall 14 of the hoistway via the hanger case 3. According to this configuration, the second latch receiving member 11 can be provided on the wall 14 of the hoistway without forming a hole in the wall 14 of the hoistway for attaching the second latch receiving member 11.

Embodiment 2.
FIG. 5 is a rear view showing the elevator landing door device according to the second embodiment. FIG. 6 is a rear view showing the landing door of FIG. 5 in the door-open lock position. In the elevator hall door device according to the second embodiment, each of the first latch receiving member 10 and the second latch receiving member 11 is provided on the wall 14 of the hoistway via the hall sill 9.

Other configurations of the elevator landing door device according to the second embodiment are the same as those of the elevator landing door device according to the first embodiment.

As described above, in the elevator hall door device according to the second embodiment, the first latch receiving member 10 is provided on the wall 14 of the hoistway via the hall sill 9. According to this configuration, the first latch receiving member 10 can be provided in the wall 14 of the hoistway without forming a hole in the wall 14 of the hoistway for attaching the first latch receiving member 10.

Furthermore, in the elevator hall door device according to the second embodiment, the second latch receiving member 11 is provided on the wall 14 of the hoistway via the hall sill 9. According to this configuration, the second latch receiving member 11 can be provided on the wall 14 of the hoistway without forming a hole in the wall 14 of the hoistway for attaching the second latch receiving member 11.

In addition, in the elevator hall door device according to each embodiment, when the first latch 12 is pushed in the door opening direction with the first hall door 1 in the door opening lock position, the first latch receiving member 10 is The configuration in which the first latch 12 is released has been described. However, the first operating member that releases the first latch 12 from the first latch receiving member 10 is provided on the first landing door 1, and when the first operating member is operated, the first latch 12 is released from the first latch receiving member 10. A configuration may also be adopted in which the first latch 12 is released. Further, even if the first latch 12 is disengaged from the first latch receiving member 10 by an operator in the hoistway operating the first latch receiving member 10 or the first latch 12, good. Also, a first detection device detects that the first latch 12 is pushed in the door opening direction when the first landing door 1 is in the door opening lock position, and a first detection device that detects that the first latch 12 is pushed in the door opening direction when the first landing door 1 is in the door opening lock position, and The configuration may include a first drive device that releases the first drive device. In this case, a control device (not shown) controls the driving of the first drive device based on the detection result of the first detection device, and releases the first latch 12 from the first latch receiving member 10. As a result, when the first latch 12 is pushed in the door opening direction with the first landing door 1 in the door opening lock position, the engagement of the first latch 12 with the first latch receiving member 10 can be released. . Further, in this case, the first detection device detects that the first latch 12 is continuously pressed in the door opening direction for a preset time or more while the first landing door 1 is in the door opening lock position. It may be a configuration. An example of the preset time is 3 seconds. Thereby, when the first latch 12 is accidentally pushed in the door opening direction, it is possible to suppress the first latch 12 from being disengaged from the first latch receiving member 10.

Further, in the elevator landing door device according to each embodiment, when the second latch 13 is pushed in the door opening direction with the second landing door 2 in the door opening lock position, the second latch receiving member 11 is The configuration in which the second latch 13 is released has been described. However, a second operating member for releasing the second latch 13 from the second latch receiving member 11 is provided on the second landing door 2, and when the second operating member is operated, the second latch receiving member 11 is A configuration may also be adopted in which the second latch 13 is released. Further, even if the second latch 13 is disengaged from the second latch receiving member 11 by an operator in the hoistway operating the second latch receiving member 11 or the second latch 13, good. Additionally, a second detection device detects that the second latch 13 is pushed in the door opening direction when the second landing door 2 is in the door opening lock position, and a second detection device that detects that the second latch 13 is pushed in the door opening direction when the second landing door 2 is in the door opening lock position, and The configuration may include a second drive device that releases the. In this case, the control device (not shown) controls the drive of the second drive device based on the detection result of the second detection device to release the second latch 13 from the second latch receiving member 11. As a result, when the second latch 13 is pushed in the door opening direction with the second landing door 2 in the door opening lock position, the engagement of the second latch 13 with the second latch receiving member 11 can be released. . Further, in this case, the second detection device detects that the second latch 13 is continuously pressed in the door opening direction for a preset time or more while the second landing door 2 is in the door opening lock position. It may be a configuration. An example of the preset time is 3 seconds. Thereby, when the second latch 13 is accidentally pushed in the door opening direction, it is possible to suppress the second latch 13 from being disengaged from the second latch receiving member 11.

Furthermore, in the elevator landing door device according to each embodiment, a configuration including the first latch receiving member 10, the second latch receiving member 11, the first latch 12, and the second latch 13 has been described. However, a configuration may be adopted in which only one of the first latch receiving member 10 and the first latch 12 and the second latch receiving member 11 and the second latch 13 are provided. The first landing door 1 and the second landing door 2 are connected to each other via an interlocking rope. Therefore, by providing a latch on either one of the first landing door 1 or the second landing door 2 and providing a latch receiving member on the wall 14 of the hoistway, the first landing door 1 or the second landing door 2 is provided with a latch. Each position can be maintained in the door open lock position.

Although the elevator landing door devices according to the preferred embodiments have been described above, the present invention is not limited to the elevator landing door devices according to the above-described embodiments. Various modifications and conversions can be made to the elevator hall door apparatus according to each of the embodiments described above without departing from the scope of the claims.

1 First landing door (landing door), 2 Second landing door (landing door), 3 Hanger case, 4 Door rail, 5 First door hanger, 6 Second door hanger, 7 First hanger roller, 8 Second hanger roller , 9 Landing threshold, 10 First latch receiving member (latch receiving member), 11 Second latch receiving member (latch receiving member), 12 First latch (latch), 13 Second latch (latch), 14 Hoistway wall , 141 Landing entrance/exit.

Claims (4)

1. landing door and
   A latch receiving member provided on the wall of the hoistway;
   a latch that is provided on the landing door and that restricts movement of the landing door in the door closing direction by engaging the latch receiving member;
   Equipped with
   When the landing door moves together with the car door, the landing door moves between a door closed position where the landing doorway is closed and a door open position where the landing doorway is open;
   When the landing door is separated from the car door and moved, the landing door is moved between the door closed position and the door open lock position, which is moved by a preset distance in the door opening direction from the door open position. move between
   An elevator landing door device in which the latch engages the latch receiving member when the landing door is in the door open lock position.
2. The elevator landing door according to claim 1, wherein the latch is released from the latch receiving member by pushing the landing door in the door opening direction while the landing door is in the door opening lock position. Device.
3. The elevator landing door device according to claim 1 or 2, wherein the latch receiving member is provided on the wall of the hoistway via a hanger case.
4. The elevator landing door device according to claim 1 or 2, wherein the latch receiving member is provided on the wall of the hoistway via a landing threshold.

Images