JP2018076156A - Engagement device mounted with car door locking mechanism foe elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily apply a door locking mechanism to the side of a car at low cost by using an element of an engagement device at the side of a landing hall.SOLUTION: The engagement device includes an engaging vane which is positioned in a car door and includes a fixed engagement vane and a movable engagement vane and an interlock lever 24 which is attached to a header case of the landing hall, includes a pair of engaging rollers 26 and 27 capable of engaging with the engagement vane when the landing car lands at a proper position, is rotated by an external force received from the engaging roller 27 concurrently with the opening of the car door, and releases locking of the landing hall door. The fixed engagement vane and the movable engagement vane are connected to each other through a parallel link so as to be relatively movable in a separating/approaching direction and in a vertical direction and have stopper means for preventing the opening operation of the door by interfering with the movable engagement vane only when the movable engagement vane is guided by an engagement vane guide in a case where the landing car does not land at the proper position and the vanes of the engagement vane are not engaged with the engaging rollers 26 and 27.SELECTED DRAWING: Figure 3A

Description

  Embodiments described herein relate generally to an engagement device with an elevator car door lock mechanism.

In the elevator, an engagement device is provided to link the car door of the car and the landing door of the hall. With this engagement device, when the car reaches the landing, the landing door and the car door are opened and closed together.
The engaging device includes an engaging roller provided in a landing door device of each floor landing, and an engaging vane disposed in the car door device. When the car lands, the engagement vanes engage with the engagement rollers.

In the conventional engagement device, a locking mechanism having an interlock lever is provided. The distal end portion of the interlock lever is engaged with an engaging portion attached to the landing door, whereby the landing door is locked so as not to open. When the car is landed and the engagement vanes are engaged with the engagement rollers, the distal end portion of the interlock lever is disengaged from the engagement portion, and the locking is unlocked. After that, when the car door opens, the landing door opens at the same time.
In this way, at the platform, a lock mechanism that prevents the platform door and the car door from opening unless the platform is landed is functioning.On the other hand, the platform is stopped in the middle of the hoistway due to a power failure or the like during traveling. For safety reasons, it is necessary to prevent the car door from opening. For this reason, various car door lock mechanisms that prevent the car door from opening have been proposed (for example, Patent Document 1).

Japanese Patent Laying-Open No. 2015-51868

However, among the existing existing elevators, there is an old elevator that does not have a car door locking mechanism. When such an existing elevator is renewed, a car door lock mechanism may be newly added. In that case, it is most desirable that the car door lock mechanism can be configured by using as much as possible existing goods from the relationship between the cost of goods and the work cost. However, conventionally, the existing car doors can be removed and new car door locks can be removed. At present, an additional mechanism is installed.
Further, even when an elevator is newly installed, it is desired that a car door lock mechanism can be constructed by using a landing-side engaging device.

  The present invention has been made in view of the above-described problems of the prior art, so that a door lock mechanism can be added to the car side easily and at low cost using the elements of the engaging device on the landing side. It is an object of the present invention to provide an elevator car door lock device.

To achieve the above object, an elevator car door lock mechanism engaging device according to an embodiment of the present invention opens and closes a car door and a landing door in conjunction with each other when the car reaches the landing. A fixed engagement vane and a movable engagement vane which are disposed on the car door and form a one-blade vane by overlapping the vanes with the car door completely closed An engagement vane comprising: a pair of engagement rollers that are attached to the header case of the landing and are engageable with the vanes of the engagement vane when the car is landed at a normal position; An interlock lever that rotates with an external force received from the engagement roller when the car door starts to open and releases the lock of the landing door, and the fixed engagement vane and the movable engagement vane are OK An engagement vane is connected to the fixed engagement vane through a parallel link so as to be movable in a separating and moving direction and a vertical direction, and the car does not land at a normal position, and the engagement An engagement vane guide for inducing movement of the movable engagement vane accompanying opening of the door while lowering by its own weight when the vane of the vane is not engaged with the engagement roller; and Stopper means that interferes with the movable engagement vane and prevents the door opening operation only when guided by the engagement vane guide.

1 is a schematic view of an elevator to which an engagement device with a car door lock mechanism according to the present invention is applied. It is the front view which looked at the entrance / exit of the elevator hall of each floor from the hoistway side. FIG. 3A is a perspective view illustrating a configuration of an interlock lever of the engaging device according to the first embodiment. FIG. 3B is a diagram illustrating a positional relationship between the engagement roller and the engagement vane when the interlock lever is viewed from above. It is the front view which looked at the arrangement | positioning position of the entrance / exit of a car and an engagement vane from the landing side. It is a figure showing the state in which the passenger car landed and the engagement vane engaged with the engagement roller of the interlock lever. It is a figure which shows an engagement vane during door opening advancing at the time of landing. It is a figure which shows a motion of an engagement vane when a car stops in the position which shifted | deviated from the landing position. It is a figure which shows the cage door lock mechanism by 2nd Embodiment of this invention. It is a figure which shows the car door lock apparatus of the elevator by 3rd Embodiment of this invention. The engagement vane guide which comprises the car door lock apparatus by 4th Embodiment of this invention is shown.

  Hereinafter, an embodiment of an engagement device with an elevator car door lock mechanism according to the present invention will be described with reference to the accompanying drawings.

(First embodiment)
FIG. 1 is a schematic view of an elevator to which an engagement device with a car door lock mechanism according to the present invention is applied. In FIG. 1, reference numeral 10 indicates a hoistway. The car 12 that moves up and down the hoistway 10 has a car room 12a and a car frame 12b. One end of the main rope 13 is connected to the car frame 12b. The main rope 13 is wound around a main sheave 14 of a hoist installed in the machine room, and the other end of the main rope 13 is connected to a counterweight 15.

  A landing door 16 is provided at the elevator hall on each floor. A car door 18 is provided at the entrance of the car room 12a.

  Next, FIG. 2 is a front view of the entrance of the elevator hall on each floor as viewed from the hoistway 10 side. The entrance is formed by a three-way frame 19 and is opened and closed by two landing door panels 18A and 18B. In this embodiment, the landing door panels 18 </ b> A and 18 </ b> B are opened and closed in a single opening manner and are guided to the sill 20. Reference numeral 23 indicates a Fescher plate.

  A header case 21 of a landing door device is installed at the upper part of the entrance / exit. The landing door panels 18A and 18B are opened and closed in a state where they are suspended by the door hangers 21A and 21B, respectively. The door hanger 21 </ b> A is provided with an interlock lever 24 that constitutes the engagement device 22.

Here, FIG. 3A shows a configuration of the interlock lever 24 of the engagement device 22.
In FIG. 2 and FIG. 3A, the reference number 25 has shown the spindle which supports the interlock lever 24 so that rotation is possible. The interlock lever 24 is in a horizontal posture at a position where it is locked so that the landing door panels 18A and 18B are not opened. A hook part 34 is formed at the tip of the interlock lever 24. In the locking position, the hook part 35 engages with a hook part 35 attached to the three-side frame 19 side. The interlock lever 24 is normally locked in such a locked position by being pulled by a coil spring 29 (see FIG. 5), and the landing door panels 18A and 18B are not opened.

  Engagement rollers 26 and 27 as shown in FIG. 3A are provided so that the locked state by the interlock lever 24 can be released by an engagement vane which will be described later, and the interlock lever 24, the engagement rollers 26 and 27, The engagement device 22 is constituted by the engagement vanes.

  One engagement roller 26 is attached to the upper end of a bell crank 28 supported by a shaft 30. The other engagement roller 27 is attached to an arm portion 24 a extending on the support shaft 25 at a right angle to the longitudinal direction of the interlock lever 24.

  Here, FIG. 3B is a diagram showing the positional relationship of the engagement vanes 45 and 46 that have entered between the engagement rollers 26 and 27. As shown in FIG. 3B, the vanes 45a and 46a perpendicular to the main bodies of the engagement vanes 45 and 46 are overlapped to form a single blade blade and enter between the engagement rollers 26 and 27. Yes. In FIG. 3A, the roller 31 is also attached to the lower end of the bell crank 28 to which the engagement roller 26 is attached. The roller 31 is in contact with the stopper 32, and the interval between the engagement rollers 26 and 27 is maintained at a predetermined interval.

Next, FIG. 4 is a view showing the arrangement positions of the entrance / exit of the car 12 and the engagement vanes 45 and 46. FIG. 4 is a view of the car 12 viewed from the elevator hall.
First, the car door panels 16 </ b> A and 16 </ b> B constituting the car door are door panels that are opened and closed in a single-open manner along the threshold 33. In the case of a car door device, the header case 41 is provided with a door drive motor 40, and power is transmitted to a transmission mechanism provided inside the header case 41. The car door panels 16 </ b> A and 16 </ b> B are opened and closed while being hung on the door hangers 42 </ b> A and 42 </ b> B that move along the door rail 43. In the case of the car door panels 16A and 16B, the car door panel 16A opens and closes at a speed twice that of the car door panel 16B.

  The engagement vanes 45 and 46 are attached to the door panel 16A or the door hanger 42A at a position where the engagement vanes 45 and 46 can be engaged when the car 12 reaches the engagement rollers 26 and 27 of the interlock lever 24 shown in FIG. ing. Reference numeral 17 denotes an apron.

  FIG. 5 is a view showing a state where the car 12 has landed and the engagement vanes 45 and 46 are engaged with the engagement rollers 26 and 27 of the interlock lever 24. FIG. 5 shows the positional relationship between the engagement vanes 45 and 46 and the interlock lever 24 as seen from the elevator hall. The car door panels 16A and 16B are unlocked.

  The engagement vanes 45 and 46 move in the door opening direction and the door closing direction at the opening of the car as the car door panels 16A and 16B open and close. In the case of the present embodiment, in the relationship of relative movement between the engagement vane 45 and the engagement vane 46, one engagement vane 45 is a fixed-side engagement vane (fixed engagement vane), and the other The engagement vane 46 of the movable side is movable relative to the stationary engagement vane 45 via the parallel links 48 and 49, and is movable in the horizontal direction of separation and vertical movement (movable engagement vane). Vane).

  When the car door panels 16A and 16B are completely closed, the engagement vanes 45 and 46 have a structure in which the vanes 45a and 46a overlap to form a single blade vane. At this time, the movable-side engagement vane 46 has a higher position than the fixed-side engagement vane 45 as an initial position.

  The movable engagement vane 46 can translate downward from this initial position while leaving a gap with the fixed engagement vane 45. In order to induce such movement of the engaging vane 46 on the movable side, the engaging vane guide 60 is provided so as to be supported by the fixed structure portion of the car 12. The engagement vane guide 60 is composed of a horizontal upper guide 60a, an inclined guide 60b, and a horizontal lower guide 60c in the door opening direction. The movable engagement vane 46 is provided with a guide roller 50 for rolling the engagement vane guide 60.

  A stopper 70 is attached to the movable engagement vane 46. When the stopper 70 comes into contact with the stopper interference portion 71 attached to the fixed structure portion of the car 12, further door opening operation is prevented. When the car door panels 16 </ b> A and 16 </ b> B are completely closed, the stopper 70 is at a position higher than the stopper interference portion 71. At a position where the movable engagement vane 46 is lowered by being guided by the engagement vane guide 60, the height is adjusted so that the stopper 70 just contacts the stopper interference portion 71.

  The elevator car door lock mechanism-equipped engagement device according to the present embodiment is configured as described above. Next, its operation and effects will be described.

First, unlocking and door opening when the car 12 is normally landed will be described.
When the car 12 reaches the floor, the engagement vanes 45 and 46 enter between the engagement rollers 26 and 27 on the landing side in a state where the vanes 45a and 46a overlap each other as shown in FIG. Immediately after landing, the interlock lever 24 is in a horizontal posture with the collar portion 34 engaged with the hook portion 35, and the landing door panels 18A and 18B are locked.

  When the car door panels 16A and 16B start to open, the engagement vanes 45 and 46 move together in the door opening direction. Immediately after the door is opened, as shown in FIG. 5, as a result of the vane 46 a of the engagement vane 46 hitting the engagement roller 27, the interlock lever 24 rotates counterclockwise around the support shaft 25, and the collar 34 Is detached from the hook portion 35. In this way, the locking of the landing door panels 18A and 18B is released.

  After unlocking, the engagement vanes 45 and 46 are moved in the door opening direction as they are. Meanwhile, the overlapping vanes 45a and 46a remain sandwiched between the engaging rollers 26 and 27. Thus, the car door panels 16A and 16B and the landing door panels 18A and 18B are connected via the engagement vanes 45 and 46, and the door opening operation can be continued at the same time.

Here, FIG. 6 is a figure which shows the engagement vanes 45 and 46 during door opening progressing at the time of landing.
When landing normally, the vanes 45a and 46a are kept sandwiched between the engagement rollers 26 and 27 in a state where the vanes 45a and 46a overlap with each other. The positional relationship does not change. That is, the engagement vanes 45 and 46 are merely moved in parallel in the opening direction while being assembled, and the operation of lowering the engagement vanes 46 while moving along the engagement vane guide 60 does not occur. For this reason, as shown in FIG. 6, the height positions of the stopper 70 and the stopper interference portion 71 are different from each other and can be retracted in the vertical direction from the interference, and the door opening operation is not hindered.

Next, the door opening operation when some abnormality occurs and the car 12 stops at a position shifted from the normal landing position will be described.
FIG. 7 is a diagram illustrating the movement of the engagement vanes 45 and 46 when the car 12 stops at a position shifted from the landing position.

  In this case, as shown in FIG. 7, since the interlock lever 24 is separated from the engagement vanes 45 and 46, the engagement vanes 45 and 46 do not engage with the engagement rollers 26 and 27. This means that there is no mechanism for maintaining the relative positional relationship between the engagement vane 45 and the engagement vane 46 in the state where the vanes 45a and 46a overlap with each other in the initial state.

  Therefore, when the car door panels 16A and 16B of the car 12 are opened for some reason, the engagement vanes 45 and 46 are moved together. However, the movable engagement vane 46 is moved toward the guide roller 50. Is guided by the engagement vane guide 60 while rolling the engagement vane guide 60.

  As shown in FIG. 7, while the guide roller 50 rolls down the inclined guide 60 b that is inclined downward in the door opening direction, the movable engagement vane 46 is moved to the fixed engagement vane 45 by its own weight. As it opens, it goes down relatively. In this embodiment, the stopper 70 comes into contact with the stopper interference portion 71 at a position where the inclined guide 60b is lowered. In this state, the stopper interference portion 71 interferes to prevent further door opening operation, and the door opening operation of the car door panels 16A and 16B is locked.

  In this manner, the car 12 is stopped at a position other than the landing position by the combination of the engagement vane 45 on the fixed side and the engagement vane 46 on the movable side, the engagement vane guide 60, the stopper 70, and the stopper interference portion 71. In this case, a car door lock mechanism that prevents the car door panels 16 </ b> A and 16 </ b> B from opening can be constructed, and safety measures can be strengthened so that passengers do not fall into the hoistway 10.

The above description is based on the case where the engagement device 22 includes the car door lock mechanism from the beginning of the elevator installation.
On the other hand, when an old elevator is renewed, a car door lock mechanism may be added to an existing engagement device as follows.
In this case, the car 12 does not have a lock mechanism for the car door panels 16A and 16B from the beginning. When the car door panels 16A and 16B are stopped at a position shifted from the landing position on the landing, Assume that there was a risk of opening.

  At the elevator hall on each floor, the interlock lever 24 constituting the engaging device 22 uses the existing product having the configuration as described above as it is. On the other hand, the fixed engagement vane 45, the movable engagement vane 46, the engagement vane guide 60, the stopper 70, and the stopper interference portion 71 shown in FIG. 5 are replaced with existing engagement vanes. It will be.

  In this case, the thickness when the engagement vanes 45 and 46 are overlapped with the vanes 45a and 46a, respectively, is set to the same dimensions as the vanes of the existing engagement vanes. By doing so, there is no hindrance to the engagement between the engagement vanes 45 and 46 and the engagement rollers 26 and 27 on the interlock lever 24 side, and the unlocking operation and the door opening and closing operations are the same as before. Can take over.

  When a car door lock mechanism is added to the existing engagement device by such modification, the interlock lever 24 of each floor can be used as it is at the landing, so that construction for each floor is unnecessary. Then, it is only necessary to remove the existing engagement vane from the car 12 and replace it with the engagement vane guide 60, the stopper 70, and the stopper interference portion 71, so that the cost of goods and work can be greatly reduced. it can. Moreover, a new car door lock mechanism can be added to the car 12 simply and inexpensively using the old engagement device as it is. In addition, when the existing door mechanism of the car 12 is replaced and renewed, the door 12 may be added to the car 12 by using the interlock lever 24 on each floor as it is.

(Second Embodiment)
Next, an elevator car door lock device according to a second embodiment of the present invention will be described with reference to FIG.
In the second embodiment, instead of the stopper 70 and the stopper interference portion 71 shown in FIGS. 5 to 7, a movement restricting portion 62 folded back in a U-shape is provided at the end of the inclined guide 60 b of the engagement vane guide 60. This is the embodiment. Since the other components are the same as those in FIGS. 5 to 7, the same components are denoted by the same reference numerals and description thereof is omitted.

  When the car 12 stops at a position deviated from the landing position, the engagement vanes 45 and 46 do not engage with the engagement rollers 26 and 27. Therefore, when the door is opened, the movable engagement vanes are engaged. 46 is the same as the first embodiment in that it is lowered by its own weight while opening with respect to the engagement vane 45 on the fixed side.

  When the guide roller 50 gets down the inclined guide 60b, the guide roller 50 hits the movement restricting portion 62 and its movement is restricted. This prevents further door opening operation and locks the door opening operation of the car door panels 16A, 16B.

  According to the second embodiment as described above, it is possible to substitute the stopper 70 and the stopper interference portion 71 using the engagement vane guide 60, and there is an advantage that a simple configuration with fewer parts is obtained.

(Third embodiment)
Next, an elevator car door lock device according to a third embodiment of the present invention will be described with reference to FIG.
In the third embodiment, in addition to the configuration of the stopper 70 and the stopper interference portion 71 shown in FIGS. 5 to 7 of the first embodiment, a switch 72 that detects that the stopper interference portion 71 interferes with the stopper 70 is provided. This is an embodiment provided. Since the other components are the same as those in FIGS. 5 to 7, the same components are denoted by the same reference numerals and description thereof is omitted.

  As shown in FIG. 9, when the stopper 70 hits the stopper interference portion 71, the stopper 70 turns on the switch 72, and the signal is transmitted to the control device 73. As a result, the control device 73 detects that some abnormality has occurred and the car 12 has stopped at a position other than the normal position, and the door opening has been started but has been interrupted and locked. The control device 73 immediately stops the door opening operation.

  At this time, the control device 73 activates the notification device 74 in the car 12, and notifies the passengers of a situation in which some abnormality occurs and the car door panels 16A and 16B are not opened by voice or text. As a result, the passenger can accurately grasp the situation.

(Fourth embodiment)
FIG. 10 shows an engagement vane guide 60 according to a fourth embodiment of the present invention.
As shown in FIG. 10, when the car door panels 16A and 16B are normally closed, the engagement vanes 45 and 46 are in a state where the vanes 45a and 46a overlap each other. At the start end of the engagement vane guide 60, an inclined portion 60d having a downward slope in the door closing direction in which the guide roller 50 contacts is provided.

  Since there is such an inclined portion 60d, the movable side engagement vane 46 acts on the movable side in a direction in contact with the fixed side engagement vane 45 by its own weight. The vane 46 can be prevented from opening carelessly. Thereby, when the car 12 is normally landed, the engagement between the engagement vanes 45 and 46 and the engagement rollers 26 and 27 of the interlock lever 24 can be ensured.

  Further, when the car door panels 16A and 16B start to open, the inclined portion 60d must be taken up, so that the preventive effect of preventing the door from opening when the car does not land at the proper position can be obtained.

  As described above, the elevator car door lock mechanism-equipped engagement device according to the present invention has been described with reference to preferred embodiments. However, these embodiments have been given as examples, and for example, the present invention can be used for landing doors, It can also be applied to a car door with a double door type. The novel apparatus, method, and system described in the specification can be implemented in various forms, and various omissions, substitutions, and changes can be made without departing from the spirit of the present invention. The claims and their equivalents are intended to cover the embodiments or improvements thereof within the spirit of the invention.

10 ... hoistway, 12 ... car, 13 ... main rope, 14 ... main sheave, 15 ... counterweight, 16 ... landing door, 17 ... sill, 18 ... car door, 20 ... sill, 21 ... header case, 22 ... Engaging device, 24 ... interlock lever, 25 ... support shaft, 26 ... engaging vane, 27 ... engaging vane, 34 ... hook part, 35 ... hook part, 31 ... roller, 32 ... stopper, 40 ... door drive motor 41 ... Header case, 42A, 42B ... Header case, 44 ..., 45 ... Fixed engagement vane, 46 ... Movable engagement vane, 50 ... Guide roller, 60 ... Engagement vane guide, 70 ... Stopper 71 ... Stopper interference part

Claims (5)

An engagement device that opens and closes a car door and a landing door in conjunction with each other when the car reaches the landing,
An engagement vane composed of a fixed engagement vane and a movable engagement vane, which is disposed on the car door and forms a single blade vane by overlapping the vanes in a state where the car door is completely closed;
A pair of engaging rollers that are attached to the header case of the hall and are engageable with the vanes of the engaging vanes when the car is landed at a normal position, and the door opening of the car door starts. An interlock lever that rotates with an external force received from the engagement roller and releases the lock of the landing door,
The fixed engagement vane and the movable engagement vane are connected via a parallel link so that the movable engagement vane can move relative to the fixed engagement vane in a separating direction and a vertical direction,
Further, when the car does not land at the normal position and the vane of the engagement vane does not engage the engagement roller, the movable engagement vane of the movable engagement vane accompanying the door opening while descending by its own weight. An engagement vane guide for inducing movement;
An elevator car door lock mechanism comprising: stopper means for preventing the door opening operation by interfering with the movable engagement vane only when the movable engagement vane is guided by the engagement vane guide. Engagement device.   The stopper means includes a stopper attached to the movable engagement vane, and a stopper interference portion that interferes with the stopper when the movable engagement vane is guided and lowered. An elevator engagement device with a car door lock mechanism according to claim 1.   2. The elevator car according to claim 1, wherein the stopper means includes a movement restricting portion that is provided at a terminal end of the engagement vane guide and interferes with the movable engagement vane to prevent a door opening operation. A device with a door lock mechanism.   The stopper interference unit is provided with a switch that outputs an ON signal to the control device by the stopper, and detects from the ON signal that the door opening operation has been started without the car landing at a proper position. The engagement device with an elevator car door lock mechanism according to claim 2. A method for remodeling an existing engagement device to the engagement device with a car door lock mechanism according to any one of claims 1 to 4,
The interlock lever has a pair of engagement rollers with which the vanes of the engagement vanes can be engaged when the car lands, and receives from the engagement rollers when the door of the car door starts to open. Rotate with external force, divert the existing interlock lever configured to unlock the landing door as it is,
The existing engagement vane is composed of the fixed engagement vane and the fixed engagement vane that form a single-blade vane by overlapping the vanes with the car door completely closed. The engagement vane and the movable engagement vane are connected to the engagement vane via a parallel link so that the movable engagement vane can move relative to the fixed engagement vane in a separating direction and a vertical direction. Replace
Further, when the car does not land at the normal position and the vane of the engagement vane does not engage the engagement roller, the movable engagement vane of the movable engagement vane accompanying the door opening while descending by its own weight. An engagement vane guide for inducing movement, and a stopper means for interfering with the movable engagement vane only when the movable engagement vane is guided to the engagement vane guide and preventing the door opening operation. A method of remodeling an engagement device with a car door lock mechanism for an elevator, which is newly provided in the elevator.

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