WO2024134727A1 - Elevator apparatus - Google Patents

Abstract

According to the present invention, in a second interlock apparatus of an elevator apparatus, a support member is located above and away from a second latch, and is movable in a direction parallel to the direction of opening and closing operations of a second landing door. A second unlocking member is supported by the support member and is displaced with respect to the support member as a result of being hit by an unlocking mechanism when a cage door performs an opening operation, thereby releasing the second latch from a second catch. A transmission mechanism transmits the movement of the second unlocking member to the second latch.

Description

Elevator Equipment

This disclosure relates to elevator equipment.

In conventional elevator systems, the opening operation of a pair of landing doors is prevented by an interlock device. The interlock device has a hasp, a latch, a fixed interlock roller, and a movable interlock roller. When the car lands on the landing floor and the pair of car doors open, the fixed interlock roller and the movable interlock roller are sandwiched by a vane mechanism. As a result, the movable interlock roller moves along an arc centered on the fixed interlock roller, and the latch is released from the hasp, unlocking the interlock device (see, for example, Patent Document 1).

Patent No. 6758539

In buildings where elevator systems are installed, the floor height of one landing floor may differ from the floor height of other landing floors, which may result in differences in the height dimensions of landing entrances. However, in conventional elevator systems, the vane mechanism limits the zone in which the interlock device is permitted to be unlocked, limiting the difference in height dimensions between multiple different landing entrances.

The present disclosure has been made to solve the problems described above, and aims to provide an elevator system that can alleviate restrictions on the difference in height dimensions between multiple different landing entrances.

The elevator system of the present disclosure includes a car that moves up and down a hoistway, a car door provided on the car, a first landing door that opens and closes a first landing entrance provided on a first landing floor, a first interlock device that prevents the first landing door from being opened, a second landing door that opens and closes a second landing entrance provided on a second landing floor, a second interlock device that prevents the second landing door from being opened, and an unlocking mechanism that is provided on the car door and unlocks the first interlock device when the car lands on the first landing floor and the car door is opened, and unlocks the second interlock device when the car lands on the second landing floor and the car door is opened, and the first interlock device includes a first latch provided above the first landing entrance, a first latch provided on the first landing door and hooked on the first latch to prevent the first landing door from being opened, and an unlocking mechanism that is provided on the first latch to unlock the first landing door. The second interlock device has a first unlocking member that is displaced relative to the first landing door when the unlocking mechanism hits it during the opening operation of the car door, thereby disengaging the first latch from the first latch, and the second interlock device has a second latch provided above the second landing entrance, a second latch provided on the second landing door and hooked to the second latch to prevent the opening operation of the second landing door, a support member provided above the second latch and away from the second latch, which is movable in a direction parallel to the opening and closing operation direction of the second landing door, a second unlocking member supported by the support member, which is displaced relative to the support member when the unlocking mechanism hits it during the opening operation of the car door, thereby disengaging the second latch from the second latch, and a transmission mechanism provided between the second unlocking member and the second latch, which transmits the movement of the second unlocking member relative to the support member to the second latch.

The elevator system disclosed herein can relax restrictions on the difference in height dimensions between multiple different landing entrances.

1 is a schematic configuration diagram showing an elevator device according to a first embodiment. FIG. 2 is a front view of a first landing door device in the elevator apparatus of FIG. 1 as viewed from the hoistway side. FIG. 2 is a front view of a second landing door device in the elevator apparatus of FIG. 1 as viewed from the hoistway side. FIG. 4 is an enlarged front view showing a main part of FIG. 3 . FIG. 5 is a front view showing the second interlock device of FIG. 4 in an unlocked state. FIG. 2 is a front view of the car door device in the elevator system of FIG. 1 as viewed from the landing side. 7 is an explanatory diagram illustrating a schematic positional relationship between the first interlock device of FIG. 2 and the unlocking mechanism of FIG. 6 . FIG. 7 is an explanatory diagram illustrating a schematic positional relationship between the second interlock device of FIG. 3 and the unlocking mechanism of FIG. 6 . FIG.

Hereinafter, embodiments will be described with reference to the drawings.
Embodiment 1.
Fig. 1 is a schematic diagram showing an elevator apparatus according to embodiment 1. In the figure, a support beam 2 is provided at the top of a hoistway 1. A hoisting machine 3 is supported on the support beam 2. The hoisting machine 3 has a hoisting machine main body 4 and a drive sheave 5.

The hoist body 4 has a hoist motor (not shown) and a hoist brake (not shown). The hoist motor rotates the drive sheave 5. The hoist brake keeps the drive sheave 5 stationary. The hoist brake also brakes the rotation of the drive sheave 5.

A suspension body (not shown) is wrapped around the drive sheave 5. The suspension body is made up of multiple ropes or multiple belts.

Inside the hoistway 1, there is provided a car 6 and a counterweight (not shown). The car 6 and the counterweight are suspended by a suspension body, and move up and down inside the hoistway 1 by rotating the drive sheave 5.

Multiple guide rails (not shown) are installed in the elevator shaft 1. The multiple guide rails guide the elevator car 6 and the counterweight as they ascend and descend. The support beam 2 is supported by two or more of the multiple guide rails.

A car entrance 6a is provided on the front of the car 6. The car 6 is also provided with a car door device. The car door device has a right car door 7a and a left car door 7b. The right car door 7a is a car door located on the right side when looking at the car entrance 6a from the landing. The left car door 7b is a car door located on the left side when looking at the car entrance 6a from the landing.

The right car door 7a and the left car door 7b are mechanically linked to each other and operate in opposite directions to open and close the car entrance 6a.

The multiple landing floors include at least one first landing floor 51 and at least one second landing floor 52 different from the first landing floor 51. In this example, the lowest floor is the first landing floor 51, and each landing floor other than the lowest floor is a second landing floor 52.

A first landing entrance 51a is provided between the landing and the elevator 1 on the first landing floor 51. A second landing entrance 52a is provided between the landing and the elevator 1 on each second landing floor 52.

The height dimension h1 of the first landing entrance 51a and the height dimension h2 of each second landing entrance 52a are different from each other. In this example, the height dimension h1 of the first landing entrance 51a is greater than the height dimension h2 of each second landing entrance 52a. The height dimension of the landing entrance is the vertical dimension from the landing floor to the top end of the landing entrance.

A first landing door device is provided on the first landing floor 51. The first landing door device has a pair of first landing doors, a first right landing door 8a and a first left landing door 8b. The first right landing door 8a is a landing door located on the right side when the first landing entrance/exit 51a is seen from the landing. The first left landing door 8b is a landing door located on the left side when the first landing entrance/exit 51a is seen from the landing.

In the first landing door device, the first right landing door 8a and the first left landing door 8b are mechanically linked to each other and operate in opposite directions to open and close the first landing entrance/exit 51a. Also, in the first landing door device, the first right landing door 8a and the first left landing door 8b are linked to the right car door 7a and the left car door 7b to open and close when the car 6 lands on the floor.

A second landing door device is provided on each second landing floor 52. Each second landing door device has a pair of second landing doors, a second right landing door 9a and a second left landing door 9b. The second right landing door 9a is a landing door located on the right side when the second landing entrance 52a is viewed from the landing. The second left landing door 9b is a landing door located on the left side when the second landing entrance 52a is viewed from the landing.

In each second landing door device, the second right landing door 9a and the second left landing door 9b operate in opposite directions in mechanical interlocking with each other to open and close the corresponding second landing entrance/exit 52a. Also, in each second landing door device, the second right landing door 9a and the second left landing door 9b open and close in interlocking with the right car door 7a and the left car door 7b when the car 6 lands on the floor.

FIG. 2 is a front view of the first landing door device in the elevator system of FIG. 1, as seen from the hoistway 1 side. In FIG. 2, the first landing door device is seen from the opposite side to the landing, so the first right landing door 8a is located on the left side, and the first left landing door 8b is located on the right side.

A landing door frame 11 is fixed above the first landing entrance 51a. A landing door rail 12 is provided on the landing door frame 11. The landing door rail 12 is parallel to the width direction of the first landing entrance 51a and is horizontal. The width direction of the first landing entrance 51a is parallel to the opening and closing operation direction of the first right landing door 8a and the first left landing door 8b, and is the left-right direction in FIG. 2.

The first right-side landing door 8a and the first left-side landing door 8b each have a landing door panel 13 and a landing door hanger 14. Each landing door hanger 14 is fixed to the upper part of the corresponding landing door panel 13.

The first right-side landing door 8a and the first left-side landing door 8b are suspended from a landing door rail 12 and open and close along the landing door rail 12. The landing door frame 11 is provided with a first landing door interlocking mechanism (not shown). The first landing door interlocking mechanism mechanically interlocks the first right-side landing door 8a and the first left-side landing door 8b with each other.

A first interlock device 21 is provided between the first left landing door 8b and the landing door frame 11. That is, the first interlock device 21 is provided above the first landing entrance 51a. The first interlock device 21 prevents the first right landing door 8a and the first left landing door 8b from opening.

The first interlock device 21 has a first hasp 22, a first latch 23, a first fixed interlock roller 24, and a first movable interlock roller 25 as a first unlocking member.

The first latch 22 is provided above the first landing entrance 51a and is fixed to the landing door frame 11. The first latch 23 is rotatably provided on the landing door hanger 14 of the first left landing door 8b. When the first right landing door 8a and the first left landing door 8b are in the fully closed position, the first latch 23 is engaged with the first latch 22, preventing the first right landing door 8a and the first left landing door 8b from opening.

The first fixed side interlock roller 24 is arranged coaxially with the rotation axis of the first latch 23. The first movable side interlock roller 25 is rotatably mounted on the first latch 23. When the first latch 23 rotates, the first movable side interlock roller 25 can move along an arc centered on the rotation axis of the first latch 23.

Figure 3 is a front view of the second landing door device in the elevator system of Figure 1, as seen from the hoistway 1 side. In Figure 3, the second landing door device is seen from the opposite side to the landing, so the second right landing door 9a is located on the left side, and the second left landing door 9b is located on the right side.

In the second landing door device, the second right landing door 9a and the second left landing door 9b each have a landing door panel 13 and a landing door hanger 14. However, the vertical dimension of each landing door panel 13 in the second landing door device is smaller than the vertical dimension of each landing door panel 13 in the first landing door device.

The landing door frame 11 in the second landing door device is provided with a second landing door interlocking mechanism (not shown). The second landing door interlocking mechanism mechanically interlocks the second right landing door 9a and the second left landing door 9b with each other.

A second interlock device 31 is provided between the second left-side landing door 9b and the landing door frame 11. That is, the second interlock device 31 is provided above the second landing entrance 52a. The second interlock device 31 prevents the second right-side landing door 9a and the second left-side landing door 9b from opening.

The second interlock device 31 has a second hook 32, a second latch 33, a guide body 34, a movable body 35, a transmission mechanism 36, and a stopper 37.

The second latch 32 is provided above the second landing entrance 52a and is fixed to the landing door frame 11. The second latch 33 is rotatably provided on the landing door hanger 14 of the second left landing door 9b. When the second right landing door 9a and the second left landing door 9b are in the fully closed position, the second latch 33 is engaged with the second latch 32, preventing the second right landing door 9a and the second left landing door 9b from opening.

The guide body 34 is provided above the second landing entrance 52a. The guide body 34 is also fixed to the upper part of the landing door frame 11.

The movable body 35 is provided above and away from the second latch 33, and is movable in a direction parallel to the direction of opening and closing the second left-side landing door 9b. Furthermore, the movable body 35 moves together with the second left-side landing door 9b along the guide body 34 when the second left-side landing door 9b is opened or closed. The guide body 34 guides the movement of the movable body 35.

The transmission mechanism 36 is connected between the movable body 35 and the second latch 33. The stopper 37 is provided on the guide body 34. When the second left-side landing door 9b is in the fully closed position, the movable body 35 abuts against the stopper 37. This limits the range of movement of the movable body 35 in the door closing direction of the second left-side landing door 9b.

Figure 4 is an enlarged front view of the main parts of Figure 3. The movable body 35 has a support member 41, a pair of main rollers 42, a pair of auxiliary rollers 43, a second fixed side interlock roller 44, and a second movable side interlock roller 45 as a second unlocking member.

The support member 41 is provided above the second latch 33 and can move along the guide body 34 in a direction parallel to the opening and closing direction of the second left landing door 9b.

The pair of main rollers 42 and the pair of auxiliary rollers 43 are provided on the support member 41. The pair of main rollers 42 and the pair of auxiliary rollers 43 are arranged on the opposite side of the support member 41 from the second fixed side interlock roller 44 and the second movable side interlock roller 45.

When moving the support member 41, the pair of main rollers 42 move while rolling on the guide body 34. Each auxiliary roller 43 is positioned directly below the corresponding main roller 42. In addition, each auxiliary roller 43 prevents the corresponding main roller 42 from falling off the guide body 34.

The second fixed side interlock roller 44 is rotatably mounted on the support member 41 directly above the second latch 33.

The second movable interlock roller 45 is supported by the support member 41 directly above the second fixed interlock roller 44. The second movable interlock roller 45 can also move along an arc centered on the rotation axis of the second fixed interlock roller 44.

The transmission mechanism 36 is provided between the second fixed side interlock roller 44 and the second movable side interlock roller 45 and the second latch 33, and transmits the movement of the second movable side interlock roller 45 relative to the support member 41 to the second latch 33.

The transmission mechanism 36 also has a first link 46 and a second link 47. The first link 46 and the second link 47 are arranged parallel and vertical to each other, forming a parallel link mechanism.

The first link 46 is connected between the support member 41 and the second latch 33. Specifically, the first link 46 is connected between the rotation shaft of the second latch 33 and the rotation shaft of the second fixed side interlock roller 44.

The second link 47 is connected between the second movable side interlock roller 45 and the second latch 33. Specifically, the second link 47 is rotatably connected to the second latch 33 diagonally above the rotation axis of the second latch 33, and is rotatably connected to the rotation axis of the second movable side interlock roller 45.

From the state shown in FIG. 4, the second movable interlock roller 45 moves clockwise in FIG. 4 around the rotation axis of the second fixed interlock roller 44, causing the second latch 33 to also rotate clockwise in FIG. 4.

As a result, as shown in FIG. 5, the second latch 33 disengages from the second hasp 32, and the second interlock device 31 is unlocked.

Figure 6 is a front view of the car door device in the elevator device of Figure 1, viewed from the landing side. A car door frame 61 is fixed to the top of the car entrance 6a. A car door rail 62 is provided on the car door frame 61. The car door rail 62 is parallel to the width direction of the car entrance 6a and is horizontal. The width direction of the car entrance 6a is parallel to the opening and closing operation direction of the right car door 7a and the left car door 7b, and is the left-right direction in Figure 6.

The right car door 7a and the left car door 7b each have a car door panel 63 and a car door hanger 64. Each car door hanger 64 is fixed to the upper part of the corresponding car door panel 63. The right car door 7a and the left car door 7b are suspended from a car door rail 62 and open and close along the car door rail 62.

The car door frame 61 is provided with a car door interlocking mechanism (not shown) and a door motor (not shown). The car door interlocking mechanism mechanically interlocks the right car door 7a and the left car door 7b with each other. The output of the door motor is transmitted to the right car door 7a and the left car door 7b via the car door interlocking mechanism. As a result, the right car door 7a and the left car door 7b open and close.

The left car door 7b is provided with an unlocking mechanism 65. The unlocking mechanism 65 unlocks the first interlock device 21 when the first right-side landing door 8a and the first left-side landing door 8b are opened. The unlocking mechanism 65 also unlocks the second interlock device 31 when the second right-side landing door 9a and the second left-side landing door 9b are opened.

The unlocking mechanism 65 has a door stopper side vane 66 and a door pocket side vane 67. The door stopper side vane 66 and the door pocket side vane 67 are provided on the car door panel 63 of the left car door 7b.

The door pocket side vane 67 can move in the width direction of the car entrance 6a relative to the left car door 7b. The distance between the door stop side vane 66 and the door pocket side vane 67 changes as the door pocket side vane 67 moves relative to the left car door 7b.

The car door frame 61 and the left car door 7b are provided with an operating mechanism 68. The operating mechanism 68 moves the door pocket side vane 67 when the left car door 7b is opened or closed.

The unlocking mechanism 65 sandwiches the first fixed interlock roller 24 and the first movable interlock roller 25 between the door stopper vane 66 and the door pocket vane 67 when opening or closing the first right landing door 8a and the first left landing door 8b.

As a result, the first movable interlock roller 25 moves along an arc centered on the rotation axis of the first fixed interlock roller 24, and the first latch 23 rotates, unlocking the first interlock device 21. In addition, the first left landing door 8b can move together with the left car door 7b.

In other words, when the left car door 7b opens, the first movable interlock roller 25 is displaced relative to the first left landing door 8b due to contact with the unlocking mechanism 65, and the first latch 23 is released from the first hook 22.

In addition, the unlocking mechanism 65 sandwiches the second fixed interlock roller 44 and the second movable interlock roller 45 between the door stopper vane 66 and the door pocket vane 67 when opening or closing the second right-side landing door 9a and the second left-side landing door 9b.

As a result, the second movable interlock roller 45 moves along an arc centered on the rotation axis of the second fixed interlock roller 44, and the second latch 33 rotates, unlocking the second interlock device 31. In addition, the second left landing door 9b can move together with the left car door 7b.

In other words, when the left car door 7b opens, the second movable interlock roller 45 is displaced relative to the support member 41 due to contact with the unlocking mechanism 65, and the second latch 33 is released from the second hook 32.

FIG. 7 is an explanatory diagram that shows a schematic diagram of the positional relationship between the first interlock device 21 in FIG. 2 and the unlocking mechanism 65 in FIG. 6. When the car 6 lands on the first landing floor 51, the unlocking mechanism 65 faces the first interlock device 21.

FIG. 8 is an explanatory diagram that shows a schematic positional relationship between the second interlock device 31 in FIG. 3 and the unlocking mechanism 65 in FIG. 6. When the car 6 lands on each second landing floor 52, the unlocking mechanism 65 faces the second interlock device 31.

The difference between the installation height of the second movable side interlock roller 45 from the landing floor at each second landing floor 52 and the installation height of the first movable side interlock roller 25 from the landing floor at the first landing floor 51 is within a set range. The set range is smaller than the vertical dimension of the unlocking mechanism 65. It is also more preferable that the installation height of the second movable side interlock roller 45 and the installation height of the first movable side interlock roller 25 are the same.

In such an elevator device, a support member 41 is provided above and away from the second latch 33. The support member 41 is movable in a direction parallel to the direction of opening and closing the second left landing door 9b.

The second movable interlock roller 45 is supported on the support member 41. When the unlocking mechanism 65 hits the second movable interlock roller 45, it is displaced relative to the support member 41, and the second latch 33 is released from the second hook 32. A transmission mechanism 36 is provided between the second movable interlock roller 45 and the second latch 33.

As a result, both the first interlock device 21 and the second interlock device 31, which is installed at a lower height than the first interlock device 21, can be unlocked by a common unlocking mechanism 65. This makes it possible to ease restrictions on the difference in height dimensions between multiple different landing entrances.

Furthermore, the first interlock device 21 and the second interlock device 31 are each disposed outside the landing door panel 13. Therefore, even if a glass window is provided in the landing door panel 13, the first interlock device 21 and the second interlock device 31 cannot be seen from the landing.

In addition, a guide body 34 is provided above the second landing entrance 52a. This allows the support member 41 and the second movable interlock roller 45 to move smoothly in a direction parallel to the opening and closing direction of the second left landing door 9b.

The transmission mechanism 36 also has a second link 47 that is connected between the second fixed side interlock roller 44 and the second latch 33. This allows the movement of the second fixed side interlock roller 44 to be transmitted to the second latch 33 with a simple configuration.

The first interlock device 21 may be disposed between the first right-side landing door 8a and the landing door frame 11, and the second interlock device 31 may be disposed between the second right-side landing door 9a and the landing door frame 11. In this case, the unlocking mechanism 65 is disposed in the right-side car door 7a.

In addition, the number of landing entrances with large height dimensions is not particularly limited and may be two or more.

Furthermore, the number of landing entrances with small height dimensions is not particularly limited. For example, the height dimension of the landing entrance on the lowest floor may be smaller than the height dimensions of landing entrances on floors other than the lowest floor.

Furthermore, there may be multiple types of second interlock devices 31 that differ from each other in the distance between the second latch 33 and the support member 41, i.e., the vertical dimension of the transmission mechanism 36. In this case, too, if the first interlock device 21 and the second interlock device 31 can be unlocked by a common unlocking mechanism 65, the same effect as above can be obtained. For this reason, the number of patterns of the height dimension of the landing entrance/exit may be three or more.

The car door device and the landing door device may also be single-leaf door devices.

In addition, the number of door panels in each of the car door device and the landing door device may be one or three or more.

Furthermore, the layout of the elevator system is not limited to the layout shown in FIG. 1. For example, the hoist 3 may be installed at a location other than the top of the hoistway 1.

The elevator system may also be an elevator system with a machine room, a double-deck elevator, a one-shaft multi-car elevator, etc. The one-shaft multi-car system is a system in which an upper car and a lower car located directly below the upper car each independently ascend and descend in a common elevator shaft.

1 elevator shaft, 6 cage, 7a right cage door, 7b left cage door, 8a first right landing door (first landing door), 8b first left landing door (first landing door), 9a second right landing door (second landing door), 9b second left landing door (second landing door), 21 first interlock device, 22 first latch, 23 first latch, 25 first movable side interlock device Lock roller (first unlocking member), 31 second interlock device, 32 second latch, 33 second latch, 34 guide body, 36 transmission mechanism, 41 support member, 45 second movable interlock roller (second unlocking member), 47 second link, 51 first landing floor, 51a first landing entrance/exit, 52 second landing floor, 52a second landing entrance/exit, 65 unlocking mechanism.

Claims (3)

A car ascending and descending the elevator,
a car door provided in the car;
a first landing door for opening and closing a first landing entrance provided on the first landing floor;
a first interlock device that prevents an opening operation of the first landing door;
a second landing door for opening and closing a second landing entrance provided on the second landing floor;
a second interlock device that prevents an opening operation of the second landing door; and an unlocking mechanism that is provided on the car door and unlocks the first interlock device when the car lands on the first landing floor and the car door performs an opening operation, and unlocks the second interlock device when the car lands on the second landing floor and the car door performs an opening operation,
The first interlock device is
A first latch provided above the first landing entrance;
a first latch provided on the first landing door and hooked on the first latch to prevent an opening operation of the first landing door;
a first unlocking member that is provided on the first latch and that is displaced with respect to the first landing door when the unlocking mechanism comes into contact with the first unlocking member when the car door performs an opening operation, thereby releasing the first latch from the first latch,
The second interlock device is
A second latch provided above the second landing entrance;
a second latch provided on the second landing door and hooked on the second latch to prevent an opening operation of the second landing door;
a support member that is provided above the second latch and spaced apart from the second latch, and is movable in a direction parallel to a direction of an opening/closing operation of the second landing door;
a second unlocking member supported by the support member, the second unlocking member being displaced relative to the support member when the unlocking mechanism hits the second unlocking member during an opening operation of the car door, thereby disengaging the second latch from the second latch;
a transmission mechanism provided between the second unlocking member and the second latch, for transmitting movement of the second unlocking member relative to the support member to the second latch. The elevator system according to claim 1, wherein a guide body for guiding the movement of the support member is provided above the second landing entrance. The elevator system according to claim 1 or 2, wherein the transmission mechanism has a link connected between the second unlocking member and the second latch.

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