JP6605729B2 - Elevator equipment - Google Patents

Description

  The present invention relates to an elevator apparatus including a car-side lock mechanism that releasably locks a door portion of a car.

  2. Description of the Related Art Conventionally, a landing door provided on a landing side in an elevator apparatus has been provided with a building-side lock mechanism that locks and releases an opening / closing operation in order to prevent passengers from falling into a hoistway. In recent years, a car-side lock mechanism has been provided to prevent passengers in the car from opening the car door part and falling into the hoistway.

  As a technique related to such a car-side locking mechanism, there is a technique as described in Patent Document 1, for example. Patent Document 1 discloses a locking device that locks a car door in a closed position, a link mechanism that has a link provided on the car door so as to be rotatable about a rotation shaft, and a car door that is connected to the car door via the link mechanism. Techniques with a provided door-to-door blade are described. The door contact side blade can be displaced in the horizontal direction between a locked position and an unlocked position on the opposite side of the door pocket from the locked position.

International Publication No. 2015/008386

  However, in the technique described in Patent Document 1, when the car moves up and down, acceleration is also applied to the locking device that is the locking side hook member of the car side locking device and the door contact side blade that is the car side engagement element. Is granted. Therefore, there is a possibility that the locking side hook member or the car side engaging element operates in the releasing direction which is the unlocking position, and the car side locking mechanism malfunctions.

  In view of the above problems, an object of the present invention is to provide an elevator apparatus that can prevent the car-side lock mechanism from malfunctioning due to the raising / lowering movement or vibration of the car.

In order to solve the above problems and achieve the object of the present invention, an elevator apparatus of the present invention includes a car-side locking mechanism that releasably locks a door portion of a car that moves up and down in a hoistway. The car side lock mechanism includes a support plate, a rotation shaft, a locking side hook member, a fixed hook member, a car side engaging element, a link member, a transmission member, and a locking holding member.
The support plate is provided in the door part. The rotating shaft is fixed to the support plate. The locking-side hook member is rotatably supported on the rotation shaft. The fixed hook member is releasably engaged with the locking side hook member. The car-side engagement element contacts a building-side engagement roller of a building-side lock mechanism that releasably locks a landing door disposed at a landing where the car stops. The link member is rotatably supported by the support plate, and supports the car-side engagement element so as to be movable in the vertical direction and the door opening / closing direction. The transmission member transmits the operation of the car side engaging element to the locking side hook member. The locking holding member biases the locking side hook member in a direction in which the locking side hook member engages with the fixed hook member. In addition, the link member has an end portion on the side connected to the car-side engagement element in the locked state in which the lock-side hook member and the fixed hook member are engaged with each other. It is arranged with facing.

  According to the elevator apparatus of the present invention, it is possible to prevent the car-side lock mechanism from malfunctioning due to the raising / lowering operation or vibration of the car.

It is a schematic structure figure showing an elevator device concerning an embodiment. It is a side view showing the state where the car concerning an example of an embodiment stopped on an arbitrary floor. It is a front view which shows the state which looked at the passenger car concerning the example of an embodiment from the building side. It is a front view which shows the cage | basket | car side lock mechanism concerning the example of an embodiment. It is a front view which shows the state which looked at the doorway concerning the example of an embodiment from the car side. It is a front view which shows the building side locking mechanism concerning the example of embodiment. It is a front view which shows the state by which the cage | basket | car side lock mechanism concerning the example of an embodiment was cancelled | released. It is a front view when an acceleration acts on the car side locking mechanism according to the embodiment in the upward direction. It is a front view when acceleration acts on the car side lock mechanism concerning an embodiment in the downward direction.

  Hereinafter, embodiments of an elevator apparatus will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the common member in each figure.

1. Configuration of Elevator Device First, a configuration of an elevator device according to an embodiment (hereinafter referred to as “this example”) will be described with reference to FIGS.
FIG. 1 is a schematic configuration diagram illustrating a configuration example of the elevator apparatus of the present example. FIG. 2 is a side view showing a state where the car is stopped on an arbitrary floor.

  The elevator apparatus 1 of this example is a so-called machine room-less elevator apparatus that does not have a machine room above a hoistway 100 formed in a building structure. In addition, although the elevator apparatus 1 of this example demonstrates the example using a machine room less elevator apparatus, it is not limited to this, The elevator apparatus which has a machine room above the hoistway 100 may be sufficient. .

  The elevator apparatus 1 includes a car 110 that moves up and down in the hoistway 100, a hoisting machine 120, a counterweight 130, a first driven pulley 140, a second driven pulley 150, and a rope 170. Have.

  A lifting pulley 111 is provided at the bottom of the car 110. A rope 170 is wound around the lifting pulley 111. A detailed description of the car 110 will be described later.

  A weight-side pulley 131 is provided on the counterweight 130. A rope 170 is wound around the weight side pulley 131. Further, a buffer member 133 is disposed below the counterweight 130 in the lowermost part of the hoistway 100. The buffer member 133 is a member for reducing the impact when the counterweight 130 collides with the lowermost part of the hoistway 100. A buffer member (not shown) is also arranged below the car 110 at the lowermost part of the hoistway 100.

  The hoisting machine 120 is disposed at the lowermost part of the hoistway 100, and raises and lowers the car 110 and the counterweight 130 in a vine manner via a rope 170. The drive of the hoisting machine 120 is controlled by the control unit.

  The first driven pulley 140 and the second driven pulley 150 are fixed to the uppermost part of the hoistway 100. One end 171 and the other end 172 of the rope 170 are fixed to the top of the hoistway 100. The rope 170 is mounted on the first driven pulley 140 from the weight side pulley 131 provided on the counterweight 130, and the hoisting machine 120, the second driven pulley 150, and the pulley 111 for raising the car 110. It is wound in the order.

  As shown in FIG. 2, an entrance 102 through which people and objects enter and exit the car 110 is provided at a landing 101 where the car 110 stops on each floor of the building structure. The doorway 102 is provided with a pair of landing doors 211.

  The pair of landing doors 211 is supported by a building-side door unit 212 provided at the upper end in the vertical direction of the doorway 102 so as to be opened and closed. In addition, a building-side door sill 213 that supports the pair of landing doors 211 is provided at the lower end of the doorway 102 in the vertical direction. The building side door unit 212 will be described later.

  FIG. 3 is a front view of the car 120 as viewed from the doorway 102 on the building side.

  As shown in FIGS. 2 and 3, the car 110 includes a car room 10 where people and objects get on and off, a pair of door portions 11 </ b> A and 11 </ b> B, a car-side door unit 12, and a car-side door sill 13. is doing. An opening is provided on one surface of the cab 10. And people and things enter and exit from this opening.

  The car side door unit 12 is provided at the upper end of the opening in the car room 10, and the car side door sill 13 is provided at the lower end of the opening. A pair of door portions 11A and 11B are attached to the car side door unit 12 so as to be openable and closable. The car side door unit 12 is configured to be able to move the pair of door portions 11A and 11B in the horizontal direction. Further, the car-side door sill 13 has a guide groove for guiding opening and closing of the pair of door portions 11A and 11B.

  The car-side door unit 12 includes a car-side door rail 15, a drive unit 16, a transmission belt 17, a driven roller 18, door hangers 21 </ b> A and 21 </ b> B, and a car-side lock mechanism 30. The first door hanger 21A is provided at the upper end in the vertical direction of the door portion 11A, and the second door hanger 21B is provided at the upper end in the vertical direction of the door portion 11B. A movable roller 24 is rotatably attached to each of the door hangers 21A and 21B. The moving roller 24 is slidably engaged with the car-side door rail 15. The car-side door rail 15 extends along the opening / closing direction of the pair of door portions 11A and 11B.

  The first door hanger 21 </ b> A has a first connecting member 22, and the second door hanger 21 </ b> B has a second connecting member 23. The connecting members 22 and 23 protrude upward from the upper ends of the door hangers 21A and 21B in the vertical direction, respectively. The connecting members 22 and 23 are connected to a transmission belt 17 described later. The first door hanger 21 </ b> A is provided with a car-side lock mechanism 30 described later that releasably locks the pair of door portions 11 </ b> A and 11 </ b> B.

  The drive unit 16 is disposed on one side in the horizontal direction of the car side door unit 12. The driven roller 18 is disposed on the other side in the horizontal direction of the car-side door unit 12. A transmission belt 17 is wound around the driving roller of the driving unit 16 and the driven roller 18. The transmission belt 17 is formed in an endless shape in which both ends in the longitudinal direction are connected. When the drive unit 16 is driven, the transmission belt 17 circulates between the driven roller 18 and the drive roller of the drive unit 16. At this time, the upper and lower portions of the transmission belt 17 in the vertical direction move in opposite directions.

  A first connecting member 22 is connected to the lower part of the transmission belt 17 on the return path side, and a second connecting member 23 is connected to the upper part of the transmission belt 17 on the forward path side. Therefore, when the drive part 16 drives and the transmission belt 17 moves, a pair of door part 11A, 11B moves to the door closing direction which mutually approaches via the connection members 22 and 23, or the door opening direction which leaves | separates.

[Cage-side locking mechanism]
Next, the car-side locking mechanism 30 will be described with reference to FIG.
FIG. 4 is a front view showing the car-side lock mechanism 30.

  As shown in FIG. 4, the cage-side locking mechanism 30 includes a support plate 31, a car-side engagement element 32, a locking-side hook member 33, a fixed hook member 34, and a rotation shaft 35. . The car-side locking mechanism 30 includes a lock holding member 39 and link members 41A and 41B.

  As shown in FIG. 3, the fixed hook member 34 is fixed to the car-side door unit 12. The fixed hook member 34 may be fixed to the second door hanger 21B or the door portion 11B. As shown in FIG. 4, the fixed hook member 34 is provided with a hook portion 34 a. The hook portion 34 a engages with a hook portion 33 a described later of the locking side hook member 33.

  The support plate 31 is formed in a flat plate shape. As shown in FIG. 3, the support plate 31 is fixed to the first door hanger 21A. A rotation shaft 35, a first stopper 45, a plurality of second stoppers 46, and link shafts 42 and 42 of link members 41A and 41B are fixed to the support plate 31. A lock holding member 39 is attached to the support plate 31.

  The first link member 41 </ b> A is rotatably supported by a link shaft 42 provided at the lower end portion in the vertical direction of the support plate 31. The second link member 41 </ b> B is rotatably supported by a link shaft 42 provided at the upper end in the vertical direction of the support plate 31. A shaft portion 43 is provided at each end of the first link member 41A and the second link member 41B opposite to the link shaft 42.

  A car-side engagement element 32 is rotatably attached to the two shaft parts 43 and 43. The car-side engagement element 32 is formed of a long member extending a predetermined length along the ascending / descending direction of the car 110. When the car-side locking mechanism 30 is in the locked state, the first link member 41A and the second link member 41B are connected to the car-side engagement element 32 side at the end portions on the shaft parts 43 and 43 side, and the link shaft 42 , 42 is directed upward in the vertical direction so that the height in the horizontal direction is higher than the end on the 42 side. Therefore, when the car-side locking mechanism 30 is in the locked state, the car-side engaging element 32 is arranged in a state where it is lifted upward in the vertical direction by the first link member 41A and the second link member 41B.

  Further, in a state before the car 110 is stopped at an arbitrary floor and the car-side lock mechanism 30 is unlocked, the door side of the door portion 11A of the car-side engaging element 32 is on the building side described later. A building side engagement roller 235 of the lock mechanism 230 is disposed. At this time, the car-side engagement element 32 and the building-side engagement roller 235 face each other with a predetermined interval T therebetween.

  The 1st stopper 45 is arrange | positioned in the vicinity of 41 A of 1st link members provided in the lower end part of the up-down direction. When the car side locking mechanism 30 is in the locked state, the first stopper 45 abuts on the door opening direction side of the door portion 11A in the first link member 41A. Therefore, the first link member 41A and the second link member 41B are restricted from rotating counterclockwise in FIG.

  The plurality of second stoppers 46 are opposed to the end of the door side 11 </ b> A of the car-side engagement element 32 on the door closing direction side with a predetermined interval M. This interval M is a movable range in the horizontal direction of the car-side engagement element 32. And if the 1st link member 41A and the 2nd link member 41B rotate and the car side engaging element 32 moves to the lower side of an up-down direction and the door closing direction side of the door part 11A, the car side engaging element 32 and 2nd The stopper 46 abuts (see FIG. 7). Thereby, the operation | movement of the cage | basket | car side engaging element 32, 41 A of 1st link members, and the 2nd link member 41B is controlled.

  In addition, a transmission portion 36 is provided in a midway portion in the longitudinal direction of the car-side engagement element 32. The transmission portion 36 is provided at an end portion of the door side 11 </ b> A of the car-side engagement element 32 on the door opening direction side. The transmission part 36 is in contact with a transmission pin 37 provided on the locking side hook member 33 described later.

  In addition, a rotation shaft 35 is arranged on the door opening direction side of the door portion 11A with respect to the car-side engagement element 32 attached to the support plate 31 via the first link member 41A and the second link member 41B. Yes.

  A locking side hook member 33 is rotatably attached to the rotation shaft 35. The locking side hook member 33 includes a hook portion 33a, a rotation receiving portion 33b, and a connection portion 33c. The rotation receiving portion 33b is rotatably supported by the rotation shaft 35. A transmission pin 37 is provided in the rotation receiving portion 33b.

  The transmission pin 37 is located on the door closing direction side of the door portion 11 </ b> A with respect to the rotation shaft 35 and below the vertical direction. The transmission pin 37 is in contact with a transmission portion 36 provided on the car-side engagement element 32. When the car-side engaging element 32 moves downward in the vertical direction via the first link member 41A and the second link member 41B and toward the door closing direction side of the door portion 11A, the operation of the car-side engaging element 32 is as follows. Then, the signal is transmitted to the transmission pin 37 via the transmission unit 36. As a result, the locking-side hook member 33 rotates about the rotation shaft 35 in the counterclockwise direction (release direction) in FIG. The transmission member 36 and the transmission pin 37 constitute a transmission member.

  A hook portion 33a is formed at the end opposite to the rotation receiving portion 33b. The connection part 33c is provided between the rotation receiving part 33b and the hook part 33a. When the rotation receiving portion 33 b is attached to the rotation shaft 35, the hook portion 33 a protrudes closer to the door closing direction side of the door portion 11 </ b> A than the car-side engagement element 32. When the car-side lock mechanism 30 is in the locked state, the hook portion 33a is disposed above the fixed hook member 34 in the vertical direction and engages with the hook portion 34a with a predetermined interval S therebetween.

  Here, the distance S between the hook part 33a and the hook part 34a is a length obtained by adding at least the distance M between the second stopper 46 and the car side engaging element 32 and the distance T between the car side engaging element 32 and the building side engaging roller 235. Set as above.

  Here, the rotation shaft 35 is provided on the door-side direction of the door portion 11A in the car-side engagement element 32, and the hook portion 33a is closed in the door-side direction of the door portion 11A in the car-side engagement element 32 opposite to the rotation shaft 35. It protrudes from the side. That is, the car-side engagement element 32 is disposed between the rotation shaft 35 and the hook portion 33 a of the locking-side hook member 33. Thereby, compared with the case where the rotation axis | shaft 35 is provided in the door closing direction side of the door part 11A in the cage | basket side engaging element 32, the rotation radius in the lock | rock side hook member 33 can be lengthened. As a result, the hook portion 33a can be greatly moved upward in the vertical direction with a small amount of rotation, and the amount of movement of the car-side engagement element 32 can be reduced.

  Further, a locking holding member 39 is disposed at the upper end in the vertical direction of the connecting portion 33 c of the locking side hook member 33. The lock holding member 39 is interposed between the lock side hook member 33 and the support plate 31 in a slightly compressed state. Further, the lock holding member 39 is disposed closer to the door closing direction side of the door portion 11 </ b> A than the car-side engagement element 32. The locking holding member 39 biases the locking side hook member 33 downward in the vertical direction, that is, in the locking direction.

  As the lock holding member 39 of this example, a compression coil spring is used. The locking holding member 39 is not limited to a compression coil spring, and various other elastic members such as a leaf spring and rubber may be used.

  As described above, when the car-side locking mechanism 30 is in the locked state, the car-side engaging element 32 is arranged in a state where it is lifted upward in the vertical direction by the first link member 41A and the second link member 41B. . Therefore, a downward force in the vertical direction is applied to the car-side engagement element 32 by its own weight. Then, the force applied to the car-side engagement element 32 (the weight of the car-side engagement element 32) is transmitted to the locking-side hook member 33 via the transmission unit 36 and the transmission pin 37. As a result, the hook portion 33a is directed upward in the vertical direction around the rotation shaft 35, that is, a force acts on the locking side hook member 33 in the release direction.

  Therefore, the force by which the locking holding member 39 biases the locking side hook member 33 is set to be larger than the force due to the weight of the car side engaging element 32 transmitted through the locking side hook member 33. Further, the lock holding member 39 is disposed closer to the hook portion 33a than the rotation receiving portion 33b side where the rotation shaft 35 is provided. Therefore, the moment generated by the urging force of the lock holding member 39 can be increased by disposing the lock holding member 39 away from the rotation shaft 35 that is the rotation center of the lock side hook member 33. As a result, the locking state of the locking hook member 33 can be held with a small urging force, and the locking holding member 39 can be downsized.

  Moreover, the lock | rock holding member 39 is provided in the door closing direction side instead of the door opening direction side of the door part 11A in the cage | basket side engaging element 32 which the building side engaging roller 235 mentioned later passes. Thereby, when the car 110 moves up and down, the lock holding member 39 and the building side engaging roller 235 can be prevented from contacting each other.

[Building side door unit]
Next, with reference to FIG.5 and FIG.6, the structure of the building side door unit 212 is demonstrated.
FIG. 5 is a front view of the doorway 102 on the building side as viewed from the car 110 side.

  As shown in FIG. 5, the building-side door unit 212 includes a building-side door rail 215, a first pulley 216, a second pulley 218, a transmission belt 217, door hangers 221 and 221, and a building-side lock mechanism 230. have. The door hanger 221 is provided at the upper end of the landing door 211 in the vertical direction. A moving roller 224 is rotatably attached to the door hanger 221. The moving roller 224 is slidably engaged with the building side door rail 215. The building-side door rail 215 extends along the opening / closing direction of the pair of landing doors 211 and 211.

  The two door hangers 221 are provided with connecting members 222 and 223, respectively. The connecting members 222 and 223 are connected to a transmission belt 217 described later. In addition, a building-side lock mechanism 230 is provided on the door hanger 221 facing the first door hanger 21 </ b> A of the car 110 among the two door hangers 221 and 211. The building side lock mechanism 230 will be described later.

  The first pulley 216 is disposed on one side of the building-side door unit 212 in the horizontal direction, and the second pulley 218 is disposed on the other side of the building-side door unit 212 in the horizontal direction. A transmission belt 217 is wound around the first pulley 216 and the second pulley 218. The transmission belt 217 is formed in an endless shape in which both ends in the longitudinal direction are connected. The upper and lower parts of the transmission belt 217 in the vertical direction move in opposite directions.

  A first connecting member 222 is connected to the lower part of the transmission belt 217 on the return path side, and a second connecting member 223 is connected to the upper part of the transmission belt 217 on the forward path side. And if the transmission belt 217 moves, a pair of landing doors 211 and 211 will move in the door closing direction which mutually approaches via the connection members 222 and 223, or the door opening direction which leaves | separates.

[Building side lock mechanism]
FIG. 6 is a front view showing the building side lock mechanism 230.
As shown in FIGS. 5 and 6, the building side locking mechanism 230 includes a locking side hook member 231, a rotating shaft 232, a fixed side roller 236, a base plate 237, a locking holding member 239, and a stopper 241. have. Moreover, the building side lock mechanism 230 has the fixed hook member 234 (refer FIG. 5). The base plate 237 is formed in a substantially flat plate shape. The base plate 237 is fixed to the door hanger 221. The fixed hook member 234 is fixed to a door hanger 221 or a landing door 211 different from the door hanger 221 provided with the base plate 237.

  A rotation shaft 232 and a fixed side roller 236 are fixed to the base plate 237. A lock-side hook member 231 is rotatably provided on the rotation shaft 232. The locking hook member 231 includes a hook portion 231a that engages with the fixed hook member 234, a restriction piece 231b, and a bearing portion 231c.

  The restriction piece 231b is formed at the end opposite to the hook portion 231a. Further, a stopper 241 fixed to the base plate 237 comes into contact with the upper end portion in the vertical direction of the regulating piece 231b. Then, the stopper 241 restricts the counterclockwise rotation of the locking side hook member 231 in FIG. 6 by coming into contact with the restriction piece 231b. A bearing portion 231c is provided between the restricting piece 231b and the hook portion 231a.

  The bearing portion 231c is rotatably supported on the rotation shaft 232. In addition, a building-side engagement roller 235 is rotatably attached to an upper end portion in the vertical direction of the bearing portion 231c. The building side engaging roller 235 is disposed on the hook portion 231a side in the bearing portion 231c. Then, when the car 110 stops on an arbitrary floor, the building-side engagement roller 235 faces the car-side engagement element 32 with a predetermined interval T.

  In addition, a lock holding member 239 is disposed in the vicinity of the building side engagement roller 235 in the lock side hook member 231. One end of the lock holding member 239 is fixed to the base plate 237 and the other end is fixed to the upper end portion of the lock side hook member 231 in the vertical direction. The locking holding member 239 biases the locking side hook member 231 downward in the locking direction, that is, in the vertical direction. Thereby, the locking state of the locking side hook member 231 in the building side locking mechanism 230 is maintained.

  The force at which the lock holding member 239 in the building side lock mechanism 230 holds the locked state is set larger than the force at which the lock holding member 39 of the car side lock mechanism 30 holds the locked state. That is, the urging force of the locking holding member 39 of the car-side locking mechanism 30 is set smaller than the urging force of the locking holding member 239 of the building-side locking mechanism 230.

2. Operation of Car-Side Locking Mechanism Next, the releasing operation of the car-side locking mechanism 30 having the above-described configuration will be described with reference to FIGS.
FIG. 7 is a front view showing a state where the car-side lock mechanism 30 is released.

  As shown in FIG. 2, when the car 110 stops on an arbitrary floor, the car side door unit 12 and the building side door unit 212 face each other, and the car side locking mechanism 30 and the building side locking mechanism 230 face each other. As shown in FIG. 4, the flat portion of the support plate 31 of the car-side lock mechanism 30 and the building-side engagement roller 235 of the building-side lock mechanism 230 face each other. Further, the building side engaging roller 235 faces the end of the door side 11A of the car side engaging element 32 on the door opening direction side with a predetermined interval T.

  And when the drive part 16 drives and a pair of door part 11A, 11B moves to an opening door direction, as shown in FIG. 7, the cage | basket | side engaging element 32 will contact | abut to the building side engaging roller 235. FIG. Further, when the door portion 11A moves in the opening direction, the car-side engagement element 32 is pressed by the building-side engagement roller 235 in the direction opposite to the movement direction of the door portion 11A. Therefore, the first link member 41 </ b> A and the second link member 41 </ b> B rotate around the link shaft 42 so that the shaft portion 43 side is lowered downward in the vertical direction. The car-side engagement element 32 moves in the direction opposite to the movement direction of the door portion 11A and the support plate 31 and downward in the vertical direction.

  The operation of the car-side engagement element 32 is transmitted to the locking-side hook member 33 through the transmission portion 36 and the transmission pin 37. Therefore, the locking hook member 33 rotates about the rotation shaft 35 in the releasing direction in which the hook portion 33a faces upward in the vertical direction against the urging force of the locking holding member 39. Thereby, the engagement between the hook portion 33a and the fixed hook member 34 is released, and the pair of door portions 11A and 11B are opened. Note that the car-side engagement element 32 stops moving by contacting the second stopper 46.

  Here, the force that the locking holding member 39 of the car-side locking mechanism 30 holds in the locked state is set smaller than the force that the locking holding member 239 in the building-side locking mechanism 230 holds in the locked state. Thereby, the locked state of the building side lock mechanism 230 is not released earlier than the car side lock mechanism 30.

  Since the weight of the car-side engagement element 32 is also added to the turning operation of the locking-side hook member 33, the load applied to the drive unit 16 can be reduced, the drive unit 16 can be downsized, and the pair The doors 11A and 11B can be opened smoothly.

  Further, as described above, the distance S between the hook part 33a and the hook part 34a is at least the distance M between the second stopper 46 and the car side engaging element 32 and the distance T between the car side engaging element 32 and the building side engaging roller 235. It is set to be more than the added length. Therefore, before the locking side hook member 33 moves with the door part 11A and the hook part 33a contacts the hook part 34a, the locking side hook member 33 can be rotated in the release direction.

  Next, when the door portions 11 </ b> A and 11 </ b> B further move in the opening direction, the building-side engagement roller 235 is pressed by the car-side engagement element 32 whose movement is stopped by the second stopper 46. Then, the locking-side hook member 231 of the building-side lock mechanism 230 rotates about the rotation shaft 232 against the urging force of the locking holding member 239. As a result, the locked state of the building side lock mechanism 230 is released, and the landing doors 211 and 211 move together with the door portions 11A and 11B of the car 110 in the door opening direction. Thereby, the opening operation of the door portions 11A and 11B of the car 110 and the landing doors 211 and 211 of the landing 101 is completed.

3. Next, the force applied to the car-side locking mechanism 30 when the car 110 moves up and down will be described with reference to FIGS. 8 and 9.
FIG. 8 is a front view showing the car-side locking mechanism 30 when the car 110 is raised and accelerated upward.

  As shown in FIG. 8, when the car 110 performs the ascending operation, if the car 110 is accelerated upward in the vertical direction, the hook portion 33 a is directed upward in the vertical direction on the locking-side hook member 33 in the car-side locking mechanism 30. A release moment M1 due to acceleration acts so as to rotate in the direction.

  Here, a locking holding member 39 is disposed at the upper end in the vertical direction of the locking side hook member 33. Therefore, the locking holding member 39 receives a force in the direction compressed by the release moment M1. On the other hand, the locking holding member 39 urges the locking side hook member 33 downward in the vertical direction by an urging force F1 which is a restoring force generated when compressed. Furthermore, a force that moves in the locking direction due to its own weight acts on the locking hook member 33.

  Further, when the car 110 accelerates upward, the car-side engagement element 32 also receives an upward force. However, the car-side engagement element 32 is arranged in a state where it is lifted upward by the first link member 41A and the second link member 41B. Therefore, a downward force G1 in the vertical direction is applied to the car-side engagement element 32 by its own weight.

  Further, the first link member 41A that supports the car-side engaging element 32 is restricted by the first stopper 45 from rotating upward in the counterclockwise direction, that is, in the vertical direction. As a result, even when the car-side engagement element 32 receives an upward force, the upward movement of the car-side engagement element 32 is prevented, and the car-side engagement element 32 moves in the release direction with respect to the locking-side hook member 33. The power of will not act.

  In this way, even if the release moment M1 acts on the locking hook member 33 due to the upward acceleration of the car 110, the locking force is applied by the urging force F1 of the locking holding member 39 and the weight of the locking hook member 33. State is maintained. As a result, even when vibration is generated when the car 110 is accelerated upward from the car landing level, the hook part 33a of the locking hook member 33 and the hook part of the fixed hook member 34 are generated. The engagement of 34a is not released. As a result, malfunction of the car side lock mechanism 30 can be prevented.

  In addition, since the weight of the lock-side hook member 33 also acts to hold the locked state, the urging force F1 of the lock holding member 39 can be reduced, and the lock holding member 39 can be downsized.

  FIG. 9 is a front view showing the car-side locking mechanism 30 when the car 110 is lowered and accelerated downward.

  As shown in FIG. 9, when the car 110 is lowered and accelerated downward in the vertical direction, a downward force G <b> 2 is generated in the car-side engagement element 32 due to its own weight. Therefore, the car-side engagement element 32 applies a release moment F4 that rotates in the release direction with respect to the transmission pin 37 of the locking-side hook member 33 via the transmission portion 36.

  The locking-side hook member 33 is acted on by a self-weight of the locking moment M2 in the direction opposite to the release moment M1 shown in FIG. Furthermore, the locking holding member 39 is arranged in a compressed state. Therefore, the locking holding member 39 urges the locking-side hook member 33 downward in the vertical direction by an urging force F2 that is a restoring force generated when compressed.

  Thus, even if the release moment F4 is applied to the transmission pin 37 by the car-side engagement element 32 due to the downward acceleration of the car 110, the locking moment M2 generated by the weight of the locking-side hook member 33 and the lock holding The locked state is maintained by the urging force F2 of the member 39. As a result, when the car 110 is accelerated downward, even if vibration occurs, for example, the hook portion 33a of the locking side hook member 33 and the hook portion 34a of the fixed hook member 34 are disengaged. There is nothing to do. As a result, malfunction of the car side lock mechanism 30 can be prevented.

  Further, the interval between the rotation shaft 35 and the lock holding member 39 is set longer than the interval between the transmission pin 37 and the rotation shaft 35. Therefore, even if the urging force F2 of the locking holding member 39 is reduced, the moment in the locking direction caused by the urging of the locking holding member 39 is larger than the release moment F4 applied to the transmission pin 37 by the car-side engagement element 32. Can be easily enlarged.

  The present invention is not limited to the embodiment described above and shown in the drawings, and various modifications can be made without departing from the scope of the invention described in the claims.

  In the above-described embodiment, the car-side lock mechanism 30 and the building-side lock mechanism 230 are arranged on the door hanger. However, the present invention is not limited to this, and the car-side lock mechanism and the building-side lock are not limited thereto. You may arrange a mechanism in a door part and a landing door. Alternatively, only the lock-side hook member 33 and the fixed hook member 34 in the car-side lock mechanism 30 may be arranged on the door hanger, and other members may be provided on the door portion. In this case, it is preferable that the locking side hook member 33 and the car side engaging element 32 are connected by a transmission mechanism including a link mechanism, for example, and the operation of the car side engaging element 32 is transmitted to the locking side hook member 33.

  DESCRIPTION OF SYMBOLS 1 ... Elevator apparatus, 10 ... Car room, 11A ... Door part, 11B ... Door part, 12 ... Car side door unit, 13 ... Car side door sill, 15 ... Car side door rail, 16 ... Drive part, 17 ... Transmission belt, 18 ... driven roller, 21A, 21B ... door hanger, 30 ... door side locking mechanism, 31 ... support plate, 32 ... door side engagement element, 33 ... locking side hook member, 33a ... hook part, 33b ... bearing part, 33c ... connection 34 ... a fixed hook member, 34a ... a hook part, 35 ... a rotating shaft, 36 ... a transmission part (transmission member), 37 ... a transmission pin (transmission member), 39 ... a locking holding member, 41A, 41B ... a link member, 42 ... Link shaft, 43 ... Shaft, 45 ... First stopper, 46 ... Second stopper, 100 ... Hoistway, 101 ... Pickup point, 102 ... Exit 110 ... Riding car, 120 ... Hoisting machine, 130 ... Counterweight, 170 ... Rope, 211 ... Landing door, 212 ... Building side door unit, 213 ... Building side door sill, 215 ... Building side door rail, 230 ... 231 ... Locking side hook member, 231a ... Hook part, 231b ... Regulating piece, 231c ... Bearing part, 232 ... Rotating shaft, 234 ... Fixing hook member, 235 ... Building side engaging roller, 236 ... Fixed Side roller, 237 ... base plate, 239 ... lock holding member, 241 ... stopper

Claims (5)

In an elevator apparatus equipped with a car-side locking mechanism that releasably locks the door part of the car that moves up and down in the hoistway,
The car-side locking mechanism is
A support plate provided on the door portion;
A pivot shaft fixed to the support plate;
A locking side hook member rotatably supported by the rotation shaft;
A fixed hook member releasably engaged with the locking side hook member;
A car-side engagement element that contacts a building-side engagement roller of a building-side locking mechanism that releasably locks a landing door disposed at a landing where the car stops;
A link member that is rotatably supported by the support plate, and that supports the car-side engagement element so as to be movable in the vertical direction and the door opening / closing direction;
A transmission member for transmitting the operation of the car-side engagement element to the locking-side hook member;
A locking holding member that biases the locking side hook member in a direction in which the locking side hook member engages with the fixed hook member,
In the locked state in which the locking side hook member and the fixed hook member are engaged, the link member has an end portion on the side connected to the cage side engaging element that is vertically above the end portion connected to the support plate. Arranged with the direction facing upward,
The distance between the position where the locking holding member abuts on the locking side hook member and the rotation shaft is set longer than the distance between the position where the transmission member connects to the locking side hook member and the rotation shaft. ,
The elevator apparatus is configured such that an interval between the engagement portions of the locking side hook member and the fixed hook member is set longer than an interval between the car side engaging element and the building side engaging roller. The car-side locking mechanism is
The elevator apparatus according to claim 1, further comprising a stopper that restricts movement of the car-side engagement element in a direction opposite to a direction in which the car-side engagement element moves from the locked state to the released state. The force by which the locking holding member of the car-side locking mechanism holds the locking state of the locking-side hook member is set smaller than the force by which the building-side locking mechanism operates from the locked state to the released state. The elevator apparatus according to 1. The elevator apparatus according to claim 1, wherein the car-side engagement element is disposed between the rotation shaft and a hook portion that engages with the fixed hook member in the locking-side hook member. The elevator apparatus according to claim 4, wherein the locking holding member is disposed closer to the hook portion than a portion where the locking side hook member is rotatably supported by the rotation shaft.

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