Car door interlock

Abstract

This invention relates to an elevator car door interlocking component. An elevator car door interlocking component includes: a front blade extending vertically; a rear blade axially spaced rearward from the front blade in a horizontal direction; a first connecting assembly connecting the front and rear blades together; and a second connecting assembly connecting the front and rear blades together. The second connecting assembly is axially spaced from the first connecting assembly in a vertical direction. A latch assembly has a latch connected to the first connecting assembly. A switch is positioned horizontally in front of the front blade and vertically downward. A switch contact is supported by the latch to engage the switch in a locked position and disengage from the switch in an unlocked position.

Description

Background Technology

[0001] For example, elevator systems are widely used to transport passengers between various floors in a building. The approach requirement for the elevator car is that the elevator car doors are open at a floor where passengers expect to board. Each floor includes a shaft door that moves between an open and closed position along with the elevator car doors.

[0002] The elevator system includes a connector and interlocking arrangement for connecting the elevator car door to the shaft door, such that an actuator causing movement of the car door also causes the shaft door to move as desired. The doors should move in a coordinated manner so that they do not begin to open prematurely. Summary of the Invention

[0003] An illustrative example of an elevator car door interlocking component includes: a front blade extending in a vertical direction; a rear blade axially spaced rearward from the front blade in a horizontal direction; a first connecting assembly connecting the front and rear blades together; a second connecting assembly connecting the front and rear blades together, wherein the second connecting assembly is axially spaced from the first connecting assembly in a vertical direction; a latch assembly having a latch connected to the first connecting assembly; a switch positioned in a horizontal direction in front of the front blade and facing downward in a vertical direction; and a switch contact supported by the latch to engage the switch in a locked position and disengage from the switch in an unlocked position.

[0004] In addition to one or more of the features described herein, or as an alternative, the front and rear blades include a sensing mechanism that interacts with a set of rollers associated with the landing door interlock to detect when the elevator car is within the landing area.

[0005] In addition to one or more of the features described herein or as an alternative, the set of rollers is supported by a bracket assembly fixed at the associated landing door and includes a fixed interlocking roller and an interlocking unlocking roller, wherein the elevator car is detected in the door landing area in response to the interaction between the rear blade and the interlocking unlocking roller.

[0006] In addition to one or more of the features described herein, or as an alternative, the fixed interlocking roller is axially spaced forward from the interlocking unlocking roller in the horizontal direction.

[0007] In addition to one or more of the features described herein or as an alternative, the rear blade is defined by a first slot and a second slot spaced apart from each other in a vertical direction, and wherein the first connecting assembly includes a first intermediate link and a first link, wherein: the first intermediate link is movably connected to the rear blade by a first pivot pin extending into the rear blade and a first pin extending into the first slot; and the first pin facilitates horizontal movement of the first intermediate link between the rear slot end and the front slot end of the first slot and facilitates pivoting of the first intermediate link relative to the rear blade.

[0008] In addition to one or more of the features described herein or as an alternative, the first link extends between the first intermediate link and the front blade, wherein the first link includes a first arm and a second arm, and wherein: the first arm is pivotally connected to the first intermediate link via a first arm pivot; and the second arm is pivotally connected to the front blade at a first connector and operatively connected to the belt driver.

[0009] In addition to one or more of the features described herein or as an alternative, the second connecting assembly includes a second intermediate link and a second link, wherein the second intermediate link is movably connected to the rear blade by a second pivot pin and a second pin, and wherein: the second pivot pin extends into the rear blade; the second pin extends into the second slot; and the second pin facilitates horizontal movement of the second intermediate link between the rear slot end and the front slot end of the second slot, and facilitates pivoting of the second intermediate link relative to the rear blade.

[0010] In addition to one or more of the features described herein or as an alternative, the second link extends between the second intermediate link and the front blade, and wherein the second link includes a first arm and a second arm, and wherein: the first arm is pivotally connected to the second intermediate link; and the second arm is pivotally connected to the front blade.

[0011] In addition to or as an alternative to one or more of the features described herein, the latch assembly includes a locking member, a latch, and a latch linkage, wherein: the locking member engages with the latch to prevent the elevator car door from moving from a closed position toward an open position; and the locking member includes a switch configured to: provide a signal indicating that the elevator car door is in the closed position when the latch engages the locking member; and provide a signal indicating that the elevator car door is in the open or unlocked position when the latch disengages from the locking member.

[0012] In addition to one or more of the features described herein, or as an alternative, the latch link extends between the latch and the first connecting assembly.

[0013] An illustrative example interlocking assembly includes: a landing door interlocking member comprising a set of rollers supported by a bracket assembly fixed to an associated landing door; an elevator car door interlocking member comprising: a front blade mounted for movement with the elevator car and extending vertically; a rear blade axially spaced rearward from the front blade in a horizontal direction; a first connecting assembly connecting the front and rear blades together; a second connecting assembly connecting the front and rear blades together, wherein the second connecting assembly is axially spaced from the first connecting assembly in a vertical direction; a latching assembly having a latch connected to the first connecting assembly; a switch positioned horizontally in front of the front blade and facing downward in a vertical direction; and a switch contact supported by the latch to engage the switch in a locked position and disengage from the switch in an unlocked position; and wherein the front and rear blades include sensing mechanisms that interact with the set of rollers to detect when the elevator car is within the door landing area.

[0014] In addition to one or more of the features described herein or as an alternative, the set of rollers includes a fixed interlocking roller and an interlocking unlocking roller spaced rearward from the fixed interlocking roller in the horizontal direction, wherein an elevator car is detected in the door landing area in response to the interaction between the rear blade and the interlocking unlocking roller.

[0015] In addition to one or more of the features described herein, or as an alternative, the elevator car door interlocking further includes a first slot and a second slot that define the rear blade in a vertically spaced-apart manner, and wherein the first connecting assembly includes a first intermediate link and a first connecting rod, wherein: the first intermediate link is movably connected to the rear blade by a first pivot pin extending into the rear blade and a first pin extending into the first slot; and the first pin facilitates horizontal movement of the first intermediate link between the rear slot end and the front slot end of the first slot, and facilitates pivoting of the first intermediate link relative to the rear blade.

[0016] In addition to one or more of the features described herein or as an alternative, the elevator car door interlock further includes extending a first link between a first intermediate link and a front blade, wherein the first link includes a first arm and a second arm, and wherein: the first arm is pivotally connected to the first intermediate link via a first arm pivot; and the second arm is pivotally connected to the front blade at a first connector and operatively connected to the belt actuator.

[0017] In addition to one or more of the features described herein, or as an alternative, the elevator car door interlock further includes a second connecting assembly comprising a second intermediate link and a second link, wherein the second intermediate link is movably connected to the rear blade via a second pivot pin and a second pin, and wherein: the second pivot pin extends into the rear blade; the second pin extends into a second slot; and the second pin facilitates horizontal movement of the second intermediate link between the rear slot end and the front slot end of the second slot, and facilitates pivoting of the second intermediate link relative to the rear blade.

[0018] In addition to one or more of the features described herein or as an alternative, the elevator car door interlocking further includes extending a second link between a second intermediate link and a front blade, wherein the second link includes a first arm and a second arm, and wherein: the first arm is pivotally connected to the second intermediate link; and the second arm is pivotally connected to the front blade.

[0019] In addition to one or more of the features described herein, or as an alternative, the elevator car door interlock further includes a latch assembly comprising a locking member, a door latch, and a latch linkage, wherein: the locking member engages with the door latch to prevent the elevator car door from moving from a closed position toward an open position; and the locking member includes a switch configured to: provide a signal indicating that the elevator car door is in the closed position when the door latch engages the locking member; and provide a signal indicating that the elevator car door is in the open or unlocked position when the door latch disengages from the locking member.

[0020] In addition to one or more of the features described herein or as an alternative, the elevator car door interlock further includes a latch link extending between the door latch and a first intermediate link, wherein the latch link is pivotally connected to the first intermediate link via a first link and pivotally connected to the door latch via a second link, such that the door latch selectively engages the locking component in response to the latch link and the first intermediate link pivoting together.

[0021] An illustrative example method includes: providing a landing door interlock comprising a set of rollers supported by a bracket assembly fixed to an associated landing door, wherein the set of rollers includes a fixed interlock roller and an interlock unlock roller spaced rearwardly from the fixed interlock roller in a horizontal direction; and providing an elevator car door interlock mounted for movement with an elevator car, the elevator car door interlock comprising: a front blade mounted for movement with the elevator car and extending in a vertical direction; a rear blade axially spaced rearwardly from the front blade in a horizontal direction; and at least a first connecting assembly that connects the front blade and the rear blade. The method comprises: a latch assembly having a latch connected to a first connecting assembly; a switch positioned horizontally in front of the front blade and facing downwards in the vertical direction; and a switch contact supported by the latch to engage the switch in a locked position and disengage from the switch in an unlocked position; and wherein the method further comprises at least one of the following steps: pivoting the latch upwards from under the switch to move the switch contact to engage the switch; and detecting the elevator car in the associated door landing area in response to the interaction between the rear blade and the interlocking unlocking roller.

[0022] In addition to one or more of the features described herein, or as an alternative, the method may include: pivoting a latch upward from under a switch to move a switch contact into engagement with the switch; and detecting an elevator car in the associated door landing area in response to the interaction between the rear blade and the interlocking unlocking roller.

[0023] Various features and advantages of the exemplary embodiments will become apparent to those skilled in the art from the following detailed description. The accompanying drawings can be briefly described in the following description. Attached Figure Description

[0024] Figure 1 The diagram schematically illustrates a selected portion of the elevator system.

[0025] Figure 2 It is a plan view of the elevator car in the elevator shaft when the elevator car door and landing door are in the closed position and the car door interlock is in the locked position.

[0026] Figure 3 It is a plan view of the elevator car in the elevator shaft when the elevator car door and landing door are in the open position and the car door interlock is in the unlocked position.

[0027] Figure 4A The diagram schematically illustrates a landing door interlock in the unlocked configuration.

[0028] Figure 4B The diagram schematically illustrates the corresponding elevator door interlock in the unlocked configuration.

[0029] Figure 5A This diagram illustrates the locked configuration. Figure 4A Interlocking components for station doors.

[0030] Figure 5B This diagram illustrates the locked configuration. Figure 4B The corresponding elevator door interlocking components. Detailed Implementation

[0031] Some embodiments of this disclosure provide an elevator door system with an elevator door interlock that confirms the door latch is engaged when an electrical switch pivots upward on a switch contact on a door latch to engage a downward-facing switch. Some embodiments of this disclosure also provide an elevator door system in which a sensing vane mechanism cooperates with a landing door interlock unlocking roller to detect that the elevator is within the landing area.

[0032] Figure 1 This is a perspective view of an elevator system 10, which includes an elevator car 12, a counterweight 14, a tension member 16, a guide rail 18, a machine 20, a position reference system 22, and a controller 24. The elevator car 12 and the counterweight 14 are connected to each other via the tension member 16. The tension member 16 may include or be configured as, for example, ropes, cables, and / or coated steel strips. The counterweight 14 is configured to balance the load on the elevator car 12 and is configured to facilitate simultaneous and opposite movement of the elevator car 12 relative to the counterweight 14 within the elevator shaft or hoistway 26 and along the guide rail 18.

[0033] Tension member 16 engages machine 20, which is part of the overhead structure of elevator system 10. Machine 20 is configured to control movement between elevator car 12 and counterweight 14. Position reference system 22 may be mounted on a fixed portion at the top of elevator shaft 26, such as a support or guide rail, and may be configured to provide a position signal related to the position of elevator car 12 within elevator shaft 26. In other embodiments, position reference system 22 may be directly mounted to a moving component of machine 20, or may be located in other locations and / or configurations as known in the art. Position reference system 22 may be any device or mechanism for monitoring the position of elevator car and / or counterweight, as known in the art. For example, but not limited to, position reference system 22 may be an encoder, sensor, or other system, and may include speed sensing, absolute position sensing, etc., as will be appreciated by those skilled in the art.

[0034] According to one side and such Figure 1As illustrated, controller 24 is located in controller room 28 of elevator shaft 26. Controller 24 can be configured to control the operation of elevator system 10, and specifically control the operation of elevator car 12. For example, controller 24 can provide drive signals to machine 20 to control, for example, the acceleration, deceleration, leveling, and stopping of elevator car 12. Controller 24 can also be configured to receive position signals from position reference system 22 or any other desired position reference device. When moving up or down along guide rail 18 within elevator shaft 26, elevator car 12 can stop at one or more floors 30 as controlled by controller 24. Although shown in controller room 28, those skilled in the art will recognize that controller 24 may be located and / or configured in other locations or positions within elevator system 10. In one embodiment, the controller may be remotely located or located in the cloud.

[0035] Machine 20 may include a motor or similar drive mechanism. According to embodiments of this disclosure, machine 20 is configured to include an electrically driven motor. The power supply device for the motor may be any power source, including a power grid, which supplies power to the motor in combination with other components. Machine 20 may include a traction pulley that applies force to tension member 16 to move elevator car 12 within elevator shaft 26.

[0036] Although a rope system including tension member 16 is shown and described, embodiments of this disclosure may be used in elevator systems employing other methods and mechanisms for moving the elevator car within the elevator shaft. For example, embodiments may be used in ropeless elevator systems that use a linear motor to apply motion to the elevator car. Embodiments may also be used in ropeless elevator systems that use a hydraulic lift to apply motion to the elevator car. Figure 1 These are non-restrictive examples presented merely for illustrative and explanatory purposes.

[0037] exist Figure 2 and Figure 3 In the diagram, the elevator car 12 of the elevator system 10 is shown in a plan view within the elevator shaft 26. The elevator car 12 includes a pair of movable elevator car doors 32 and corresponding movable landing doors 34. The elevator car doors 32 and / or the movable landing doors 34 are connected by a drive mechanism 36 having a drive drive 38. Figure 2 The closing position shown is similar to... Figure 3 Movement between the open and closed positions is shown. Movement of the elevator car door 32 between the closed and open positions is prevented by a car door interlock 40 operatively connected to the elevator car door 32 when the elevator car 12 is between floors 30. When the elevator car 12 is at a floor 30 or within a floor / unlocking zone, the car door interlock 40 allows the elevator car door 32 to move between the closed and open positions.

[0038] In one example, the car door interlock 40 is in the unlocked position ( Figure 4A ) and locked position ( Figure 5A The interlocking components 42 of the floor doors move between the floors. Figure 4B The car door interlock 40 is shown in the unlocked position, and... Figure 5B The car door interlock is shown in the locked position.

[0039] In some embodiments, the landing door interlock 42 includes a lockable position (in...) Figure 5A (shown in) and unlock location (in) Figure 4A The lock 44 moves between (as shown in the diagram). When the lock 44 is in the locked position, the locking surface at one end of the slot 46 on the lock 44 engages the stop 48 on the latch 50. Figure 5A In the unlocked position shown, the locking surface of the slot 46 disengages from the stop 48, and the landing door 34 moves freely together with the elevator car door 32.

[0040] The latch 50 includes a switch 52. A switch contact 54, supported on the lock 44, cooperates with the switch 52 to provide indication when the lock 44 is in the locked position. The switch 52 operates in a known manner to utilize the lack of contact between the switch 52 and the switch contact 54 (e.g., in...). Figure 4A (as shown in the image) and provides an indication when the corresponding elevator car door unlocks.

[0041] In some implementations, the unlocking roller 56 is supported on a bracket 58 fixed to the lock 44. In this example, one or more fasteners 60 secure the bracket 58 relative to the lock 44 in a selected location.

[0042] In some embodiments, the landing door interlock 42 is compatible with an elevator door connector that includes a car door interlock 40. For example, the landing door interlock 42 may be used together with the car door interlock 40, which has blades that can be moved apart or expanded to engage the landing door interlock 42 for coordinated movement of the landing door 34 and the elevator car door 32.

[0043] refer to Figure 4B and Figure 5B The car door interlocking component 40 includes a front blade 62, a rear blade 64, a first connecting assembly 66, a second connecting assembly 68, and a latch assembly 70.

[0044] In some embodiments, the front blade 62 and the rear blade 64 are disposed on a base plate (not shown) on the elevator car door 32 for movement relative to each other. The front blade 62 and the rear blade 64 each extend along a vertical axis configured to be parallel to the direction of travel of the elevator car 12.

[0045] In some embodiments, this disclosure uses the blade as a sensing mechanism, which is connected to a set of rollers 72. Figure 4A and Figure 5A The interaction is used to detect when the elevator car 12 is within the door landing area. In one example, the rollers 72 of the landing door assembly may include a fixed front interlock roller 74, a landing door interlock roller 76, and an unlocking roller 56. The rollers 72 and 74 are supported by a bracket assembly 78 fixed to the landing door 34.

[0046] In some embodiments, this disclosure uses the blades as sensing mechanisms to detect the landing door interlock roller 76 to indicate that the elevator 12 is within the door zone. Moving the sensing motion to the landing door interlock roller 76 eliminates any undesirable door movements that may occur during the engagement and disengagement of the car door 32 and the landing door 34. For example, any premature movement of the car door 32 can be eliminated because once the rear blade 64 strikes the interlock roller 76, there is no response until the system begins to actuate the door.

[0047] In some embodiments, the rear blade 64 defines a first slot 80 and a second slot 82. The first slot 80 is a generally elongated slot extending along a horizontal axis between the ends of the front and rear slots. The second slot 82 is axially spaced from the first slot 80 along a vertical axis. The second slot 82 is also a generally elongated slot extending along a horizontal axis between the ends of the front and rear slots.

[0048] In some embodiments, the rear blade 64 is arranged to actuate the latch assembly 70, which allows the elevator car door 32 to move between a closed position and an open position when the elevator car 12 is at a landing 30. The rear blade 64 is horizontally spaced from the front blade 62.

[0049] In some embodiments, the front blade 62 defines a first pivot 84 and a second pivot 86, the second pivot 86 being axially spaced from the first pivot 84 along a vertical axis.

[0050] In some embodiments, the first connecting assembly 66 includes a first intermediate link 88 and a first link 90. ​​The first intermediate link 88 is movably connected to the rear blade 64 via a first pivot pin 92 and a first pin 94. The first pivot pin 92 extends into the rear blade 64. The first pin 94 extends into a first slot 80. The first pin 94 facilitates movement of the first intermediate link 88 along a horizontal axis between the rear and front ends of the first slot 80 and facilitates pivoting or rotation of the first intermediate link 88 relative to the rear blade 64.

[0051] In some embodiments, a first link 90 is pivotally connected to a substrate and extends between a first intermediate link 88 and a front blade 62. The first link 90 includes a first arm 96 and a second arm 98. The first arm 96 is pivotally connected to the first intermediate link 88 via a first pivot 100. The second arm 98 includes a first connector at a first pivot 84 to the front blade 62 for pivotally connecting the second arm 98 to the front blade 62. In one example, this connector may be a pin.

[0052] In some embodiments, the second arm 98 is connected to the pawl assembly 102 and via a belt hook 104 ( Figure 2 The first link 90 of the first connecting assembly 66 and the second connecting assembly 68 are connected to the driver 38 such that operation of the driver 38 drives or pivots the first link 90 of the first connecting assembly 66 and the second connecting assembly 68 to move the front blade 62 and the rear blade 64 relative to each other to move between an open position and a closed position.

[0053] The pawl assembly 102 includes a latching member that prevents the belt driver 38 from reversing the drive of the coupling assemblies 66, 68 to move the front blade 62 and the rear blade 64 from the open position toward the closed position. An example of the pawl assembly 102 is known from US11254542, which is assigned to the same assignee as this application and is incorporated herein in its entirety. Other types of pawl assemblies may also be used. Furthermore, any type of belt hook may also be used. Those skilled in the art, benefiting from this description, will be able to determine combinations of pawl assemblies and belt hooks suitable for these purposes.

[0054] In some embodiments, the second link assembly 68 includes a second intermediate link 106 and a second link 108. The second intermediate link 106 is movably connected to the rear blade 64 via a second pivot pin 110 and a second pin 112. The second pivot pin 110 extends into the rear blade 64. The second pin 112 extends into the second slot 82. The second pin 112 facilitates movement of the second intermediate link 106 along a horizontal axis between the rear slot end and the front slot end of the second slot 82, and facilitates pivoting or rotation of the second intermediate link 106 relative to the rear blade 64 and / or the substrate.

[0055] The second link 108 is pivotally connected to the base plate and extends between the second intermediate link 106 and the front blade 62. The second link 108 includes a first arm 114 and a second arm 116. The first arm 114 is pivotally connected to the second intermediate link 106 via a second pivot 118. The second arm 116 includes a connector 120 extending into a pivot 86 to pivotally connect the second arm 116 to the front blade 62. In one example, the connector 120 may be a pin.

[0056] In some embodiments, the latch assembly 70 includes a locking member 122, a latch 124, and a latch link 126. The locking member 122 may be mounted to the car door lintel (not shown) of the elevator car door 32. The locking member 122 defines a slot or protrusion arranged to abut the latch 124 to prevent movement of the elevator car door 32 from a closed position toward an open position. The locking member 122 includes a switch 128 that communicates with the controller 24. When the latch 124 engages the locking member 122, the switch 128 provides a signal indicating that the elevator car door 32 is in the closed position. When the latch 124 disengages from or is spaced apart from the locking member 122, the switch 128 provides a signal indicating that the elevator car door 32 is in the open or unlocked position.

[0057] In some embodiments, the latch 124 is pivotally connected to the base plate. In some embodiments, the latch 124 and the first link 90 share the same pivot with the base plate.

[0058] In some embodiments, a latch link 126 extends between a latch 124 and a first intermediate link 88. The latch link 126 is connected to the first intermediate link 88 via a first link pivot 128. The latch link 126 is connected to the latch 124 via a second link pivot 130. The latch 124 is arranged to selectively engage the lock member 122 in response to pivoting of the latch link 126 together with the first intermediate link 88.

[0059] In some embodiments, a switch contact 132 supported on the latch 124 cooperates with the switch 128 to provide indication when the latch assembly 70 is in the locked position. The switch 28 operates in a known manner to address the lack of contact between the switch 128 and the switch contact 132 (e.g., in...). Figure 4B (as shown in the diagram) and provides an indication when the corresponding elevator car door 32 is unlocked.

[0060] In some implementations, switch 128 is positioned to face downwards, parallel to the vertical axis.

[0061] In some embodiments, the switch 128 is positioned in front of the front blade 62. For example, the switch 128 may be axially spaced from the front blade 62 in the horizontal direction. This allows the latch 124 to pivot upward from under the switch 128 to move the switch contact 132 to engage with the switch 128. By oriented the switch 128 downward, the possibility of any debris or water entering the switch 128 is minimized.

[0062] The foregoing description is exemplary in nature and not restrictive. Variations and modifications to the disclosed embodiments will become apparent to those skilled in the art, and such variations and modifications do not necessarily depart from the spirit of the invention. The legal scope of protection afforded to this invention can only be determined by studying the following claims.

Claims

1. An elevator car door interlocking component, comprising: The front blade extends in the vertical direction; The rear blade is axially spaced rearward from the front blade in the horizontal direction; A first connecting assembly connects the front blade and the rear blade together; A second connecting assembly connects the front blade and the rear blade together, wherein the second connecting assembly is axially spaced from the first connecting assembly in the vertical direction; A latch assembly having a latch connected to the first connecting assembly; A switch, positioned in front of the front blade in the horizontal direction and facing downwards in the vertical direction; and A switch contact, supported by the latch, engages the switch in the locked position and disengages from the switch in the unlocked position.

2. The elevator car door interlock of claim 1, wherein, The front and rear blades include sensing mechanisms that interact with a set of rollers associated with the landing door interlock to detect when the elevator car is in the landing area.

3. The elevator car door interlock of claim 2, wherein, The set of rollers is supported by a bracket assembly fixed at the associated landing door and includes a fixed interlocking roller and an interlocking unlocking roller, wherein the elevator car is detected in the door landing area in response to the interaction between the rear blade and the interlocking unlocking roller.

4. The elevator car door interlock of claim 3, wherein, The fixed interlocking roller is axially spaced forward from the interlocking unlocking roller in the horizontal direction.

5. The elevator car door interlock of claim 1, wherein, The rear blade is defined by a first slot and a second slot spaced apart from each other in the vertical direction, and wherein the first connecting assembly includes a first intermediate link and a first link, wherein: The first intermediate link is movably connected to the rear blade via a first pivot pin extending into the rear blade and a first pin extending into the first slot; and... The first pin facilitates the movement of the first intermediate link along the horizontal direction between the rear end and the front end of the first slot, and facilitates the pivoting of the first intermediate link relative to the rear blade.

6. The elevator car door interlock of claim 5, wherein, The first link extends between the first intermediate link and the front blade, wherein the first link includes a first arm and a second arm, and wherein: The first arm is pivotally connected to the first intermediate link via a first arm pivot; and... The second arm is pivotally connected to the front blade at the first connector and is operatively connected to the belt driver.

7. The elevator car door interlock of claim 5, wherein, The second connecting assembly includes a second intermediate link and a second link, wherein the second intermediate link is movably connected to the rear blade via a second pivot pin and a second pin, and wherein: The second pivot pin extends into the rear blade; The second pin extends into the second slot; and, The second pin facilitates the movement of the second intermediate link along the horizontal direction between the rear end and the front end of the second slot, and facilitates the pivoting of the second intermediate link relative to the rear blade.

8. The elevator car door interlock of claim 7, wherein, The second link extends between the second intermediate link and the front blade, and wherein the second link includes a first arm and a second arm, and wherein: The first arm is pivotally connected to the second intermediate link; The second arm is pivotally connected to the front blade.

9. The elevator car door interlock of claim 1, wherein, The latch assembly includes a locking component, the latch, and a latch link, wherein: The locking component engages with the door latch to prevent the elevator car door from moving from the closed position to the open position; and... The lock component includes the switch, the switch being configured to: When the door latch engages the locking component, it provides a signal indicating that the elevator car door is in the closed position; and When the door latch disengages from the locking component, it provides a signal indicating whether the elevator car door is in the open or unlocked position.

10. The elevator car door interlock of claim 9, wherein, The latch link extends between the door latch and the first connecting assembly.

11. An interlocking assembly, comprising: A landing door interlocking component, comprising a set of rollers supported by a bracket assembly fixed to the associated landing door; Elevator car door interlocking components, which include: The front blade is mounted to move with the elevator car and extends in the vertical direction; The rear blade is axially spaced rearward from the front blade in the horizontal direction; A first connecting assembly connects the front blade and the rear blade together; A second connecting assembly connects the front blade and the rear blade together, wherein the second connecting assembly is axially spaced from the first connecting assembly in the vertical direction; A latch assembly having a latch connected to the first connecting assembly; A switch, positioned in front of the front blade in the horizontal direction and facing downwards in the vertical direction; and A switch contact, supported by the latch, engages the switch in the locked position and disengages from the switch in the unlocked position; and, The front and rear blades include sensing mechanisms that interact with the set of rollers to detect when the elevator car is in the door landing area.

12. The interlock assembly of claim 11, wherein, The set of rollers includes a fixed interlocking roller and an interlocking unlocking roller spaced rearward from the fixed interlocking roller in the horizontal direction, wherein the elevator car is detected in the door landing area in response to the interaction between the rear blade and the interlocking unlocking roller.

13. The interlock assembly of claim 11, wherein, The elevator car door interlock further includes a first slot and a second slot that define the rear blades spaced apart from each other in the vertical direction, and wherein the first connecting assembly includes a first intermediate link and a first link, wherein: The first intermediate link is movably connected to the rear blade via a first pivot pin extending into the rear blade and a first pin extending into the first slot; and... The first pin facilitates the movement of the first intermediate link along the horizontal direction between the rear end and the front end of the first slot, and facilitates the pivoting of the first intermediate link relative to the rear blade.

14. The interlock assembly of claim 13, wherein, The elevator car door interlock further includes extending the first link between the first intermediate link and the front blade, wherein the first link includes a first arm and a second arm, and wherein: The first arm is pivotally connected to the first intermediate link via a first arm pivot; and... The second arm is pivotally connected to the front blade at the first connector and is operatively connected to the belt driver.

15. The interlock assembly of claim 14, wherein, The elevator car door interlock further includes a second connecting assembly, the second connecting assembly including a second intermediate link and a second link, wherein the second intermediate link is movably connected to the rear blade via a second pivot pin and a second pin, and wherein: The second pivot pin extends into the rear blade; The second pin extends into the second slot; and, The second pin facilitates the movement of the second intermediate link along the horizontal direction between the rear end and the front end of the second slot, and facilitates the pivoting of the second intermediate link relative to the rear blade.

16. The interlock assembly of claim 15, wherein, The elevator car door interlock further includes extending the second link between the second intermediate link and the front blade, wherein the second link includes a first arm and a second arm, and wherein: The first arm is pivotally connected to the second intermediate link; The second arm is pivotally connected to the front blade.

17. The interlock assembly of claim 16, wherein, The elevator car door interlock further includes a latch assembly, which includes a lock component, the door latch, and a latch linkage, wherein: The locking component engages with the door latch to prevent the elevator car door from moving from the closed position to the open position; and... The lock component includes the switch, the switch being configured to: When the door latch engages the locking component, it provides a signal indicating that the elevator car door is in the closed position; and When the door latch disengages from the locking component, it provides a signal indicating whether the elevator car door is in the open or unlocked position.

18. The interlock assembly of claim 17, wherein, The elevator car door interlock further includes a latch link extending between the door latch and the first intermediate link, wherein the latch link is pivotally connected to the first intermediate link via a first link and pivotally connected to the door latch via a second link, such that the door latch selectively engages the lock component in response to pivoting of the latch link together with the first intermediate link.

19. A method comprising: A landing door interlocking component is provided, comprising a set of rollers supported by a bracket assembly fixed to the associated landing door, wherein the set of rollers includes a fixed interlocking roller and an interlocking unlocking roller spaced rearward from the fixed interlocking roller in a horizontal direction; An elevator car door interlocking component is provided for installation in a manner that allows it to move with an elevator car, the elevator car door interlocking component comprising: The front blade is mounted to move with the elevator car and extends in the vertical direction; The rear blade is axially spaced rearward from the front blade in the horizontal direction; At least a first connecting assembly that connects the front blade and the rear blade together; A latch assembly having a latch connected to the first connecting assembly; A switch, positioned in front of the front blade in the horizontal direction and facing downwards in the vertical direction; and A switch contact, supported by the latch, engages the switch in the locked position and disengages from the switch in the unlocked position; and, The method further includes at least one of the following steps: Pivot the latch upward from under the switch to move the switch contact into engagement with the switch; The elevator car is detected in the associated door landing area in response to the interaction between the rear blade and the interlocking unlocking roller.

20. The method of claim 19, comprising: Pivot the latch upward from under the switch to move the switch contact into engagement with the switch; as well as The elevator car is detected in the associated door landing area in response to the interaction between the rear blade and the interlocking unlocking roller.

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