JP2018095457A - Elevator apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator apparatus that has a protective part for preventing a lock detection switch, which detects a locked state of a door of an elevator, from being wet with rain.SOLUTION: An elevator apparatus comprises: a protective cover disposed so as to cover a lock detection switch in a locked state of a lock part, the protective cover being formed from an upper face part disposed in a higher position in the vertical direction of a locked-side hook member and side face parts disposed on both sides of the lock detection switch, and configured to allow a rotating operation of the locked-side hook member; and a protective plate attached to the locked-side hook member and closing a part of a side opening of the protective cover.SELECTED DRAWING: Figure 4

Description

  The present invention relates to an elevator apparatus provided with a locking lock mechanism provided on an elevator door.

  Conventionally, elevator car doors and landing doors have been provided with a switch that detects the opening and closing of the door, and when the switch detects that the door has been opened, measures to stop the operation of the elevator and ensure passenger safety Has been adopted.

  Since such a switch is configured to detect opening and closing of the door by an electric circuit, there is a risk of malfunction if it gets wet with rainwater or the like. Therefore, Patent Document 1 discloses a configuration in which a drip-proof cover is provided on the switch in order to prevent the switch provided on the elevator door from causing malfunction due to the influence of rainwater or the like. In Patent Document 1, the drip-proof cover is configured to be able to cover the entire stroke range of the movable part of the door switch that is displaced integrally with the movable side of the door.

  On the other hand, the landing door provided on the landing side in the conventional elevator apparatus is provided with a building-side locking mechanism that locks and releases the opening / closing operation of the landing door in order to prevent passengers from falling into the hoistway. ing. 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.

  The door locking mechanism provided in the elevator device is such that a movable hook provided on the car door is rotatable so that it can be turned when the door is closed, and is engaged with a fixed hook fixed to the car door while rotating. It has a mechanism to lock the door.

  Such a door lock mechanism provided in the elevator apparatus is also provided with a lock detection switch for detecting the lock state of the door. And the lock detection switch provided in the lock mechanism may also cause malfunction when wet with liquid such as rainwater.

JP 2010-208728 A

  As described above, in the lock detection switch provided in the door lock mechanism in which the movable hook engages with the fixed hook, it is desired to attach a protective portion having a waterproof effect.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an elevator apparatus including a protection unit for preventing a lock detection switch for detecting a lock state of an elevator door from getting wet with rainwater or the like.

  In order to solve the above problems and achieve the object of the present invention, an elevator apparatus of the present invention includes a door part and a lock mechanism that releasably locks the door part, and the lock mechanism locks the door part so as to be releasable. And a lock detection switch for detecting a lock state of the lock unit, and a protection unit arranged to cover the lock detection switch in the lock state of the lock unit. The lock portion includes a lock-side hook member that is rotatably supported by the door portion of the elevator, and a fixed hook member that is releasably engaged with the lock-side hook member. The locking detection switch is supported by the locking hook member and is movable as the locking hook member is rotated, and a fixed portion that is fixed at a position where the locking unit can be contacted when the locking unit is locked. With. In addition, the protection part is composed of an upper surface part arranged above the locking side hook member in the vertical direction and side parts arranged on both side surfaces of the locking detection switch, and allows the locking side hook member to rotate. And a protective plate that is attached to the locking hook member and closes a part of the side opening of the protective cover.

  According to the present invention, the lock detection switch for detecting the lock state of the elevator door is protected from water droplets or the like by the protection unit.

1 is a schematic configuration diagram illustrating an overall configuration of an elevator apparatus according to an embodiment of the present invention. It is a side view which shows the state which the car of the elevator apparatus which concerns on one Embodiment of this invention stopped on arbitrary floors. It is a front view when the car is seen from the doorway on the building side. It is a front view which shows the cage | basket | car side locking mechanism in the elevator apparatus which concerns on one Embodiment of this invention. It is a block diagram when the protection part side is seen from the A-A 'line of FIG. FIG. 6A is a diagram for explaining the dimension setting of the protection part in one embodiment of the present invention, and FIG. 6B is a diagram for explaining the dimension setting of the protection cover according to the comparative example. It is a front view when the doorway on the building side is seen from the car side. In the elevator apparatus which concerns on one Embodiment of this invention, it is a front view which shows the state by which the cage | basket | car side lock mechanism was cancelled | released. It is a front view which shows the cage | basket | car side lock mechanism in the elevator apparatus which concerns on a modification.

Hereinafter, an example of an elevator apparatus according to an embodiment of the present invention (hereinafter, this embodiment) will be described with reference to the drawings. In addition, this invention is not limited to the following examples. In each figure, the same code | symbol is attached | subjected to the common member. The present embodiment will be described in the following order.
1. 1. Overall configuration of elevator device 2. Car side door unit configuration Configuration of building side door unit 4. 4. Opening operation of the car side door and the building side door Modified example

1. First, the overall configuration of the elevator apparatus according to this embodiment will be described. FIG. 1 is a schematic configuration diagram showing the overall configuration of the elevator apparatus according to the present embodiment. FIG. 2 is a side view showing a state where the car of the elevator apparatus according to the present embodiment is stopped at an arbitrary floor.

  The elevator apparatus 1 of this embodiment 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 this embodiment, an example in which a machine room-less elevator device is used will be described. However, the present invention is not limited to this, and may be applied to an elevator device having a machine room above the hoistway 100. it can.

  As shown in FIG. 1, 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, and a second driven pulley 150. And a rope 170.

  A lifting pulley 111 is provided at the bottom of the car 110. A rope 170 is wound around the lifting pulley 111. The car 110 includes a car room 10 in which people and objects get on and off, a pair of door portions 11A and 11B, a car-side door unit 12, and a car-side door sill 13. One side of the cab 10 is provided with an opening through which people and objects enter and exit, and a pair of doors 11A and 11B are provided in the 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 is provided with a guide groove for guiding opening and closing of the pair of door portions 11A and 11B. A detailed description of the car door unit 12 will be given 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 alleviating the impact when the bumper 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 for raising the car 110. It is wound in the order of 111.

  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 211A and 211B.

  The pair of landing doors 211 </ b> A and 211 </ b> B are supported by a building-side door unit 212 provided at the upper and lower ends of the doorway 102 so as to be opened and closed. Further, a building-side door sill 213 that supports the pair of landing doors 211A and 211B is provided at the lower end of the doorway 102 in the vertical direction. A detailed description of the building side door unit 212 will be described later.

  As shown in FIG. 2, when the car 110 stops at the position of the landing doors 211A and 211B on an arbitrary floor, the car side door unit 12 and the building side door unit 212 face each other. Then, a car-side engaging element 32 provided in the car-side door unit 12 described later comes into contact with a building-side engaging roller 235 of a building-side door unit 212 described later, so that the door portions 11A and 11B of the car 110 are The landing doors 211A and 211B of the landing 101 are opened. Detailed description of this door opening operation will be described later.

2. Configuration of Car Side Door Unit FIG. 3 is a front view of the car 110 as viewed from the doorway 102 on the building side. As shown in FIG. 3, 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, a first door hanger 21A, a second door hanger 21B, and a car. And a 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 first door hanger 21A and the second door hanger 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 first connecting member 22 and the second connecting member 23 are each configured by a member extending upward from the upper end in the vertical direction of the door hangers 21A and 21B, and each door hanger is connected to the transmission belt 17 described later. 21A and 21B are connected. 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 unit 16 is driven and the transmission belt 17 is moved, the pair of door portions 11A and 11B are opened in the door opening direction approaching each other via the first connecting member 22 and the second connecting member 23, or separated from each other. Move in the door direction.

  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 car side lock mechanism 30 includes a car side lock unit 40, a lock detection switch 50, and a protection unit 60. In FIG. 4, in order to illustrate the car-side lock unit 40 and the lock detection switch 50, a part of the protection unit 60 is shown in cross section.

[Cage lock section]
First, the car side lock unit 40 will be described. The car side lock unit 40 includes a support plate 31, a first link member 41 </ b> A, a second link member 41 </ b> B, a car side engagement element 32, a rotation shaft 35, a locking side hook member 33, and a fixed hook member 34. And a locking holding member 39.

  The support plate 31 is formed in a flat plate shape, and is fixed to the first door hanger 21A as shown in FIG. The support plate 31 has link shafts 42A and 42B of the first link member 41A and the second link member 41B, a first stopper 45, a plurality of second stoppers 46, and a rotating shaft 35 fixed thereto. Yes. 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 </ b> A provided at the lower end in the vertical direction of the support plate 31. The second link member 41 </ b> B is rotatably supported by a link shaft 42 </ b> B provided at the upper end in the vertical direction of the support plate 31. Shaft portions 43A and 43B are provided at ends of the first link member 41A and the second link member 41B opposite to the link shafts 42A and 42B, respectively.

  The car-side engagement element 32 is formed of a long member extending a predetermined length along the raising / lowering direction of the car 110, and both end portions thereof are the first link member 41A and the second link member. It is attached to each shaft part 43A, 43B of 41B. By attaching the car side engaging element 32 to the shaft portions 43A and 43B of the first link member 41A and the second link member 41B, the car side engaging element 32 is rotatably attached to the support plate 41. Yes.

  Here, when the car-side locking mechanism 30 is in the locked state, the first link member 41A and the second link member 41B have shaft parts 43A and 43B side ends connected to the car-side engagement element 32 side, respectively. It faces upward in the vertical direction so that the height in the horizontal direction is higher than the end on the link shaft 42A, 42B 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. In the present embodiment, the first link member 41A and the second link member 41B are configured to face upward in the vertical direction, but may be configured to face downward in the vertical direction.

  Further, in a state before the car 110 is stopped at an arbitrary floor and the lock of the car-side lock mechanism 30 is released, the door-opening direction side of the door portion 11A in the car-side engagement element 32 is arranged in the direction shown in FIG. As indicated by a dashed line, a building side engaging roller 235 of a building side locking mechanism 230 described later 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 first stopper 45 is disposed in the vicinity of the first link member 41A. 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.

  A plurality of (three in FIG. 4) second stoppers 46 are provided along the car-side engagement element 32 attached to the support plate 31 via the first link member 41A and the second link member 41B. The engagement element 32 is fixed to the support plate 31 so as to face the end portion of the door portion 11A on the door closing direction side with a predetermined distance 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 comes into contact. 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 described later.

  The rotation shaft 35 is provided closer to the opening direction side of the door portion 11 </ b> A than the car-side engagement element 32 on the support plate 31. The rotation shaft 35 is a member for attaching the locking side hook member 33 to the support plate 31 so as to be rotatable.

  The locking side hook member 33 includes a hook portion 33 a, a rotation receiving portion 33 b, and a connection portion 33 c that connects the hook portion 33 a and the rotation receiving portion 33 b. It is attached to be able to rotate. The rotation receiving portion 33b is a portion that is rotatably supported by the rotation shaft 35, and a transmission pin 37 is provided in the vicinity of the car-side engagement element 32 of the rotation receiving portion 33b. The hook portion 33a is provided at the end opposite to the rotation receiving portion 33b. When the rotation receiving portion 33b is attached to the rotation shaft 35, the hook portion 33a is closer to the door portion 11A than the car-side engagement element 32 is. Projects toward the closing direction. When the car-side lock mechanism 30 is in the locked state, the hook portion 33a is arranged above the fixed hook member 34, which will be described later, and is engaged with the hook portion 34a of the fixed hook member 34 with a predetermined interval S therebetween. Match.

  The transmission pin 37 is provided in the rotation receiving portion 33 b of the locking side hook member 33. 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.

  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 at a position facing the hook portion 33 a of the locking side hook member 33 in the locked state.

  Here, the distance S in the locked state between the hook part 33a of the locking side hook member 33 and the hook part 34a of the fixed hook member 34 is at least the distance M between the second stopper 46 and the car side engaging element 32 and the car side. It is set to be equal to or longer than the length obtained by adding the interval T between the engagement element 32 and the building side engagement roller 235.

  The locking holding member 39 is disposed at the upper end in the vertical direction of the connection 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 urges the locking side hook member 33 downward in the vertical direction, that is, toward the locking direction. As the lock holding member 39, 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 can be used.

  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 engagement roller 235 can be prevented from coming into contact with each other.

[Lock detection switch]
Next, the lock detection switch 50 will be described. The lock detection switch 50 includes a movable part 51 and a fixed part 52. The movable portion 51 is fixed to the connection portion 33c of the locking side hook member 33, and is fixed to the hook portion 33a side with respect to the car side engaging element 32. The movable part 51 has a movable contact 51a on the surface facing the fixed contact 52a of the fixed part 52, which will be described later, below the vertical direction. The fixed portion 52 is fixed to the car-side door unit 12 and is disposed at a position facing the movable portion 51 fixed to the lock-side hook member 33 in the locked state. The fixed part 52 has a fixed contact 52 a on the surface of the movable part 51 that faces the movable contact 51 a in the vertical direction.

  The movable contact 51a of the movable part 51 and the fixed contact 52a of the fixed part 52 are configured to contact in the locked state. Thereby, when the car side lock part 40 is in a locked state, the movable part 51 and the fixed part 52 are electrically connected, and the lock detection switch 50 is turned on. On the other hand, as shown in FIG. 8, when the locking side hook member 33 is pivoted and the car side locking part 40 is released, the movable part 51 is also pivoted upward together with the locking side hook member 33, The movable contact 51a and the fixed contact 52a are separated from each other. Thereby, the lock detection switch 50 is turned off, and it is detected that the car-side lock unit 40 is released.

[Protective part]
Next, the protection unit 60 will be described. The protection unit 60 includes a protection cover 61 and a protection plate 62. The protection unit 60 is a member provided to protect the lock detection switch 50 from water droplets such as rainwater and dust. FIG. 5 is a configuration diagram when the protection unit 60 side is viewed from the AA ′ line in FIG. 4, and is a partial cross-sectional view.

  The protective cover 61 is provided so as to cover the lock detection switch 50. As shown in FIG. 5, the protective cover 61 includes an upper surface 61 a disposed above the locking hook member 33 in the vertical direction, and both side surfaces of the locking detection switch 50 along the opening / closing direction of the doors 11 </ b> A and 11 </ b> B. The cross section which consists of the side parts 61b and 61b arrange | positioned at is comprised by the U-shaped member. The protective cover 61 is disposed so as to have a predetermined interval between the upper surface portion 61 a and the upper end portion in the vertical direction of the locking side hook member 33. In addition, the two opposing side surface parts 61b and 61b have a space in which the locking detection switch 50, the locking side hook member 33, and the fixed hook member 34 can be arranged therebetween, and the lower end in the vertical direction is fixed. The hook member 34 is configured to extend to the lower side in the vertical direction. Further, the width in the opening / closing direction of the door portions 11A and 11B of the protective cover 61 is configured to be long enough to cover a portion protruding from the support plate 31 of the locking side hook member 33.

  The protective cover 61 is made of a member having a waterproof effect, and is made of, for example, a metal member or a resin material. The protective cover 61 configured in this manner is fixed to the car-side door unit 12, although illustration is omitted.

  The distance L1 between the surface of the upper surface portion 61a of the protective cover 61 on the side of the locking side hook member 33 and the upper end portion of the locking side hook member 33 in the vertical direction is such that the locking side hook member 33 rotates upward to lock the car side. The distance is set to allow the locking-side hook member 33 to rotate when the portion 40 is released. That is, the protective cover 61 is configured not to contact the locking side hook member 33 when the locking side hook member 33 rotates and the car side locking part 40 is released.

  The protection plate 62 is a member that closes a part of the side opening on the rotating shaft 35 side of the protection cover 61 in the locked state, and is formed of a rectangular plate-like member as shown in FIG. The width of the protective plate 62 in the thickness direction of the locking-side hook member 33 is formed to be approximately the same as or slightly smaller than the distance between the opposing side surface portions 62b, 62b of the protective cover 61. The height of the protective plate 62 in the vertical direction is set so as to prevent water droplets from entering the locking detection switch 50 from the rotating shaft 35 side and not to prevent the locking side hook member 33 from rotating. The dimensions of the protective plate 62 will be described in detail later.

  As shown in FIG. 5, an opening 62a is provided in the central portion of the protective plate 62, and the protective plate 62 is locked with the locking-side hook member 33 by inserting the locking-side hook member 33 into the opening 62a. It is attached to 33 connecting portions 33c. The protection plate 62 is attached to the connection portion 33 c of the locking side hook member 33 and is accommodated in the protection cover 61.

  The protective plate 62 can be mounted on the locking hook member 33 and can be formed of a waterproof member. In the present embodiment, the protective plate 62 is formed of a rubber material. The opening 62 a of the protection plate 62 is formed to be slightly smaller than the outer shape of the connection portion 33 c of the locking side hook member 33. Thereby, the protection plate 62 can be attached in close contact with the connection portion 33 c of the locking hook member 33. Further, the width of the protective plate 62 in the thickness direction of the locking side hook member 33 is formed to be approximately the same as or slightly smaller than the distance between the opposing side surface portions 61 b and 61 b of the protective cover 61. Thereby, the waterproofing effect from the rotation axis | shaft 35 side of the locking detection switch 50 can be heightened, without preventing rotation of the locking side hook member 33. FIG.

  Below, each dimension of the protective cover 61 and the protective plate 62 is demonstrated. FIG. 6A is a diagram for explaining the dimension setting of the protection unit 60 in the present embodiment, and FIG. 6B is a diagram for explaining the dimension setting of the protection cover according to the comparative example. In FIG. 6A, the protective cover 61 is shown in a transparent manner, and the arrangement position of the inner wall surface of the protective cover 61 is indicated by a two-dot chain line.

The distance between the upper end t1 of the protective plate 62 and the surface s1 of the upper surface 61a of the protective cover 61 on the side of the locking hook member 33 is Y1, and the upper end t2 of the hook 33a and the upper side of the protective cover 61 are locked on the locking side. The distance from the surface s1 on the member 33 side is L1. Further, the distance from the center of the rotation shaft 35 to the tip t3 of the hook portion 33a is L2, and the distance from the center of the rotation shaft 35 to the surface s2 on the locking detection switch 50 side of the protection plate 62 is L3. At this time, the distance Y1 is set so as to have a relationship represented by the following Expression 1.
Y1 ≧ L1 × L3 / L2 (Expression 1)

  As described above, the distance L1 between the upper end t2 of the hook portion 33a and the surface s1 of the protective cover 61 is the locking side when the locking-side hook member 33 is rotated upward and the car-side locking portion 40 is released. The distance is set to allow the hook member 33 to rotate. Then, by setting the distance Y1 between the upper end t1 of the protective plate 62 and the surface s1 of the protective cover 61 so as to satisfy the above-described formula 1, the locking-side hook member 33 is rotated upward and the car-side lock is set. When the part 40 is released, the protective plate 62 does not prevent the locking-side hook member 33 from rotating.

  Further, an angle α connecting the end of the surface s1 of the protective cover 61 on the rotating shaft 35 side and the corner of the upper end t1 of the protective plate 62 on the side of the lock detection switch 50 is prevented from entering water droplets such as rainwater. If the water splash prevention angle α is set, α is set to be smaller than a predetermined value. The setting of the water splash prevention angle α is a value set by the designer depending on how much rainwater is prevented from entering. The distance X1 between the end of the protective cover 61 on the rotating shaft 35 side and the surface s2 of the protective plate 62 on the hook portion 33a side is set within a range in which the water splash prevention angle α can be maintained.

  FIG. 6B illustrates a configuration of the protective cover 160 when the protective plate 62 is not provided as a comparative example. 6B, only the configuration of the protective cover 160 is different from that in FIG. 6A, and the other configurations are the same as those in FIG. 6A. The protective cover 160 in the comparative example is similar to the present embodiment in that the upper surface portion of the locking side hook member 33 is disposed above the locking side hook member 33 and both sides of the locking detection switch 50 along the opening / closing direction of the door portions 11A and 11B. It is assumed that a cross section composed of a side surface portion arranged on the surface is configured by a U-shaped member. Further, the protective cover 160 in the comparative example is different from the protective cover 61 of the present embodiment only in the width in the opening / closing direction of the door portions 11A and 11B. Also in FIG. 6B, the protective cover 160 is shown in a transparent manner, and the arrangement position of the inner wall surface of the protective cover 160 is indicated by a two-dot chain line.

  As shown in FIG. 6B, when there is no protective plate 62, the end of the movable contact 51a on the rotating shaft 35 side and the surface of the upper surface of the protective cover 160 on the side of the locking side hook member 33 are on the rotating shaft 35 side. The angle connecting the end of the water is the water splash prevention angle α. And the penetration | invasion of the water to a contact part can be prevented by ensuring this water splash prevention angle (alpha). In the comparative example, by properly determining the distance Y0 from the movable contact 51a of the movable part 51 to the protective cover 160 and the distance X0 from the protective cover 160 to the end of the movable contact 51a on the rotating shaft 35 side, The prevention angle α is secured so that water does not splash on the contact portion.

  Thus, in the comparative example, since the protection plate 62 in the present embodiment is not provided, it is necessary to ensure the water splash prevention angle α by extending the protection cover 160 to the rotation shaft 35 side longer. The protective cover 160 is enlarged with respect to the area to be protected.

  On the other hand, in the present embodiment, as shown in FIG. 6A, since the protection plate 62 is attached to the locking hook member 33, the protection cover in the opening / closing direction of the door portions 11A and 11B is maintained while maintaining the water splash prevention angle α. The width of 61 can be reduced by X2 as shown in FIG. 6A.

  In the present embodiment, the lower end of the protective plate 62 in the vertical direction extends at least to a position that covers the movable contact 51 a of the locking detection switch 50 within a range that does not hinder the rotation of the locking hook member 33. However, it may be provided so as to extend to a position covering the fixed contact 52a. By configuring the protection plate 62 with a member extending to a position covering the fixed contact 52a, the waterproof effect can be further enhanced.

3. Configuration of Building Side Door Unit Next, the configuration of the building side door unit 212 will be described with reference to FIG. FIG. 7 is a front view of the doorway 102 on the building side as viewed from the car 110 side.

  As shown in FIG. 7, 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 221A and 221B, and a building-side lock mechanism 230. have.

  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.

  The 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. Then, the upper and lower portions of the transmission belt 17 in the vertical direction move in directions opposite to each other.

  The building-side door rail 215 extends along the opening / closing direction of the pair of landing doors 211A and 211B. The door hangers 221A and 221B are provided at upper ends of the landing doors 211A and 211B in the vertical direction. A moving roller 224 is rotatably attached to the door hangers 221A and 221B, and the moving roller 224 is slidably engaged with the building-side door rail 215. The door hangers 221A and 221B are provided with a first connecting member 222 and a second connecting member 223, respectively. The first connecting member 222 is connected to the lower portion of the transmission belt 217 on the return path side, and the second connecting member 223 is connected to the upper portion of the transmission belt 217 on the forward path side. Accordingly, when the transmission belt 217 moves, the pair of landing doors 211A and 211B move in the door opening direction approaching the difference or the door opening direction separating from each other via the first connecting member 222 and the second connecting member 223. .

  Of the two door hangers 221A and 221B, the building side lock mechanism 230 is provided on the door hanger 221B facing the first door hanger 21A of the car 110. The building side lock mechanism 230 includes a base plate 237, a lock side hook member 231, a lock holding member 239, and a fixed hook member 234.

  The base plate 237 is formed in a substantially flat plate shape and is fixed to the door hanger 221. Further, the rotation shaft 232 and the fixed side roller 236 are fixed to the base plate 237. The locking-side hook member 231 is rotatably provided on the rotation shaft 232, and has a hook portion 231a that engages with the fixed hook member 234 and a bearing portion 231b. The bearing portion 231b is rotatably supported by 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 engagement roller 235 is disposed on the hook portion 231a side of the bearing portion 231b. When the car 110 stops on an arbitrary floor as shown in FIG. Opposite with an interval T.

  The fixed hook member 234 is fixed to a door hanger 221A different from the door hanger 221B provided with the base plate 237 or the landing door 211A. The fixed hook member 234 is disposed at a position facing the hook portion 231a of the locking side hook member 231 in the locked state of the building side locking mechanism 230, and the hook portion 234a that engages with the hook portion 231a of the locking side hook member 231 is disposed. Have.

  The locking holding member 239 is disposed in the vicinity of the building side engagement roller 235 in the locking side hook member 231, one end is fixed to the base plate 237, and the other end is located on the upper end in the vertical direction of the locking side hook member 231. It is fixed. 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.

  Here, 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.

4). Next, the door opening operation of the elevator apparatus 1 having the above-described configuration will be described. FIG. 8 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. 2, the car-side lock mechanism 30 faces the flat portion of the support plate 31 and the building-side engagement roller 235 of the building-side lock mechanism 230. 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 open door direction, as shown in FIG. 8, 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. And it moves to the downward direction of the up-down direction in the direction opposite to the moving direction of the door part 11A and the support plate 31 in the car side engaging element 32.

  The operation of the car-side engagement element 32 is transmitted to the locking-side hook member 33 through the transmission part 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. At this time, the protection plate 62 attached to the connection portion 33 c of the locking side hook member 33 also rotates together with the locking side hook member 33. In the present embodiment, since the predetermined gap Y1 is provided between the surface of the upper surface portion 61a of the protective cover 61 on the side of the locking hook member 33 and the upper end portion in the vertical direction of the protective plate 62, the protective cover 61 is The rotation of the locking side hook member 33 and the protection plate 62 is not hindered. In addition, since the distance between the lower end of the protection plate 62 and the locking detection switch 50 is also appropriately secured, the protection plate 62 does not come into contact with the locking detection switch 50 when the protection plate 62 rotates.

  Thus, the engagement between the hook portion 33a of the locking side hook member 33 and the hook portion 34a of the fixed hook member 34 is released, and the pair of door portions 11A and 11B are opened. When the locked state is released, the movable contact 51a and the fixed contact 52a are separated from each other, and the lock detection switch 50 is turned off to detect the release of the lock. 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.

  As described above, in the present embodiment, since the lock detection switch 50 is protected by the protection unit 60 in the locked state, the lock detection switch 50 can be protected from water droplets such as rainwater. Further, in the present embodiment, since the protective plate 62 is provided that is attached to the locking-side hook member 33 and is disposed in the vicinity of the locking detection switch 50, the locking detection switch 50 is prevented from entering from the rotating shaft 35 side. Can be prevented. Furthermore, in this embodiment, since the predetermined water splash prevention angle α can be ensured between the protective cover 61 and the protective plate 62, the protective cover 61 can be downsized while maintaining the waterproof effect. This facilitates securing the installation space for other adjacent devices.

5. Modification FIG. 9 is a front view of a car-side lock mechanism according to a modification. In FIG. 9, parts corresponding to those in FIG. As shown in FIG. 9, the car-side lock mechanism 80 according to the modification is further different from the present embodiment in the configuration of the protection unit 70, and more specifically, in that a hook-side protection plate 71 is provided. Different from the embodiment.

  As shown in FIG. 9, in the car-side lock mechanism 80 according to the modification, the protection unit 70 includes a protection cover 61, a protection plate 62, and a hook-side protection plate 71. The hook-side protection plate 71 is disposed on the side opposite to the protection plate 62 with the locking detection switch 50 interposed therebetween, and is located closer to the locking detection switch 50 than the end of the hook portion 34a of the fixed hook member 34. The connecting portion 33c of the member 33 is attached. The outer shape of the hook-side protection plate 71 is substantially the same as that of the protection plate 62, and the hook-side protection plate 71 is also configured not to prevent the locking-side hook member 33 from rotating.

  In a modified example, the contact portion of the lock detection switch 50 is protected from rainwater or the like entering from the hook portion 33a side by arranging the hook portion side protection plate 71 between the lock detection switch 50 and the hook portion 33a. Can do. Thereby, a waterproof effect can be heightened more. Furthermore, as long as the water splash prevention angle α can be secured between the hook portion 33a side end portion of the protective cover 61 and the hook portion side protective plate 71, the hook portion 33a side of the protective cover 61 is provided as in this embodiment. The length can be made shorter. Thereby, the protective cover 61 can be made smaller.

  As described above, the present invention has been described based on the embodiment. However, the present invention is not limited to the configuration described in the above-described embodiment, and the configuration can be appropriately changed without departing from the gist thereof. Is. In the present embodiment, the car-side lock mechanism 30 is provided with the protection unit 60. However, when the building-side lock mechanism 230 has a lock detection switch, the protection unit 60 can be provided in the same manner.

  Further, the above-described exemplary embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described. For example, a part of the configuration of an embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of an embodiment. In addition, it is possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.

DESCRIPTION OF SYMBOLS 1 ... Elevator apparatus, 11A, 11B ... Door part, 16 ... Drive part, 21A ... 1st door hanger, 21B ... 2nd door hanger, 30, 80 ... Car side locking mechanism, 31 ... Support plate, 32 ... Car side engagement , 33 ... Locking side hook member, 33a ... Hook part, 34 ... Fixed hook member, 34a ... Hook part, 35 ... Rotating shaft, 40 ... Car side locking part, 41 ... Support plate, 50 ... Locking detection switch, 51 ... movable part, 51a ... movable contact, 52 ... fixed part, 52a ... fixed contact, 60 ... protective part, 61 ... protective cover, 61a ... upper surface part, 61b ... side part, 62 ... protective plate, 62a ... opening part, 62b DESCRIPTION OF SYMBOLS ... Side part, 71 ... Hook part side protection plate, 100 ... Hoistway, 101 ... Platform, 102 ... Entrance / exit, 120 ... Hoisting machine, 130 ... Counterweight, 140 ... First driven pulley, 150 ... Second Driven pulley, 1 0 ... rope, 235 ... building side engaging roller

Claims (7)

A door portion and a lock mechanism for releasably locking the door portion,
The lock mechanism is disposed so as to cover the lock detection switch in the lock state of the lock portion that locks the door portion so as to be releasable, the lock detection switch that detects the lock state of the lock portion, and the lock portion. With a protective part
The lock part includes a locking side hook member rotatably supported by a door part of an elevator, and a fixed hook member that is releasably engaged with the locking side hook member.
The locking detection switch is supported by the locking-side hook member, and is fixed to a movable part that is movable as the locking-side hook member is rotated, and a position that can contact the movable part when the locking part is locked. And a fixing portion
The protective part is composed of an upper surface part arranged above the locking side hook member in the vertical direction and side parts arranged on both side surfaces of the locking detection switch, and the locking side hook member rotates. An elevator apparatus, comprising: a protective cover configured to allow the safety cover; and a protective plate that is attached to the locking-side hook member and closes a part of a side opening of the protective cover. The elevator apparatus according to claim 1, wherein the protection plate is disposed closer to the locking detection switch than an end of the protection cover on a side opening side. The elevator apparatus according to claim 2, wherein the protective plate closes a side opening on a rotating shaft side of the locking-side hook member in an opening portion of the protective cover. In the protective plate, a predetermined gap is formed between the upper end portion of the protective plate on the upper surface side of the protective cover and the upper surface portion of the protective cover so as to allow the locking-side hook member to rotate. The elevator apparatus according to claim 3. The distance Y1 between the upper end portion of the protective plate located on the upper surface side of the protective cover and the protective cover is the distance L1 between the upper end portion of the locking side hook member located on the upper surface side of the protective cover and the upper surface portion of the protective cover. When the distance from the center of the rotation axis to the tip of the locking hook member in the direction opposite to the rotation axis is L2, and the distance from the center of the rotation axis to the protective plate is L3,
Y1 ≧ L1 × L3 / L2
The elevator apparatus according to claim 4, wherein the elevator apparatus is set to satisfy. An angle connecting the upper end portion in the vertical direction of the protection plate and the end portion of the upper surface portion in the opening / closing direction of the door portion and adjacent to the protection plate is a predetermined water splash prevention angle. The elevator apparatus according to claim 5, wherein the protective cover and the protective plate are arranged so as to be smaller. The elevator apparatus according to claim 6, wherein a lower end portion of the protection plate in a vertical direction of the door portion is positioned below a contact surface between the movable portion and the fixed portion.

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