JP2017171481A - Door opening/closing device for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door opening/closing device for an elevator capable of correcting deviation of timing of opening operations of a car side door and a landing side door and prohibiting the opening operation of the car side door when an elevator car is stopped between upper and lower landings.SOLUTION: A door opening/closing device for an elevator includes: a car side mechanism 2 having a car side sliding section 20; and a landing side mechanism 4 having a landing side sliding section 40. A first operating body 21 of the car side sliding section 20 is relatively displaced in a first direction D1 during the opening operation to correct deviation of timing. A second operating body 22 of the car side sliding section 20 does not abut on a stopper 25 when the elevator car 1 is located in a landing 3. When the elevator car 1 is stopped between the upper and lower landings 3, the second operating body 22 abuts on the stopper 25, so as to prohibit the opening operation.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a door opening / closing device for an elevator, and more particularly to a door opening / closing device configured to open and close both a side door of an elevator cage and a landing door of a landing.

  The elevator door opening and closing device is a device that opens and closes both the heel side door of the elevator hoe and the landing side door of the landing. In the door opening and closing device, the heel side door starts the opening operation at the timing when the heel side door starts the opening operation and moves by a predetermined distance. In other words, there is a difference between the timing at which the side door starts the opening operation and the timing at which the landing side door starts the opening operation.

  In order to correct this timing shift, the door opening / closing device described in Patent Document 1 gradually moves the landing side door with respect to the side door when both the side door and the landing side door are opened. It is equipped with a mechanism that moves it relatively.

Japanese Patent Laying-Open No. 2015-134673

  However, the door opening and closing apparatus described in Patent Document 1 does not have a function of prohibiting the opening operation of the heel side door when the elevator car stops between the upper and lower landings due to a power failure or the like.

  The present invention has a function of correcting the timing difference between the opening operation of the side door and the landing side door, and prohibits the opening operation of the side door when the elevator fence stops between the upper and lower landings. The purpose is to propose an elevator door opening and closing device.

  An elevator door opening and closing device according to an aspect of the present invention is installed in an elevator cage and configured to open and close a cage door included in the elevator cage, and a platform installed in the platform and included in the platform And a landing-side mechanism configured to open and close the side door.

  The heel side mechanism includes a heel side slide portion, a slide body, a first operating body, a second operating body, a moving mechanism, a coupling mechanism, and a stopper.

  The heel side slide part slides in the first direction with respect to the elevator hoe to open the heel side door, and slides in the second direction opposite to the first direction to Close the side door.

  The slide body, the first operating body, and the second operating body are provided on the heel side slide portion.

  The moving mechanism moves the first operating body relative to the slide main body in the first direction when the heel side slide portion slides in the first direction.

  The connection mechanism connects the second operating body to the slide body so as to be displaceable along a predetermined locus.

  The stopper is installed in the elevator car.

  The hall side mechanism includes a hall side slide part and a protrusion part.

  The landing-side slide part opens the landing-side door by sliding in the first direction with respect to the landing, and closes the landing-side door by sliding in the second direction.

  The protrusion is provided on the landing-side slide portion, and moves the landing-side slide portion in the first direction by being pushed by the first operating body when the saddle-side door is opened.

  In the heel-side mechanism, when the protrusion is positioned between the first operation body and the second operation body, the second operation body hits the protrusion when the heel-side door starts to open. Thus, the opening operation of the eaves-side door is permitted by holding the second operating body at the first position on the predetermined locus and preventing the second operating body at the first position from hitting the stopper. Composed.

  When the protrusion side is not located between the first operating body and the second operating body, the second operating body moves on the predetermined trajectory when the side door starts to open. The second operation body is held at the second position, and a part of the second operation body at the second position hits the stopper, so that the opening operation of the heel side door is prohibited.

  The elevator door opening and closing device according to the present invention has a function of correcting the timing difference between the opening operation of the side door and the landing side door and opens the side door when the elevator fence stops between the upper and lower landings. There is an effect that the operation can be prohibited.

FIG. 1 is a plan view showing a fully closed state of an elevator door opening and closing device according to an embodiment. FIG. 2 is a perspective view showing a heel side mechanism provided in the door opening and closing device. FIG. 3 is a perspective view showing a landing mechanism provided in the door opening and closing device. FIG. 4 is a front view showing a fully closed state of the heel side mechanism. FIG. 5 is a rear view showing the fully closed state of the heel side mechanism. FIG. 6 is a front view showing the middle of the opening operation of the heel side mechanism. FIG. 7 is a front view showing the fully opened state of the heel side mechanism. FIG. 8 is a front view showing the middle of the closing operation of the heel side mechanism. FIG. 9 is a front view showing a state in which the opening operation is prohibited in the heel side mechanism. FIG. 10A is a schematic plan view showing a fully closed state of the elevator provided with the door opening and closing device, and FIG. 10B is a schematic plan view showing a state in the middle of opening and closing of the elevator provided with the door opening and closing device. FIG. 10C is a schematic plan view showing a fully opened state of the elevator provided with the door opening and closing device.

  An elevator door opening and closing device according to an embodiment will be described with reference to the accompanying drawings. Hereinafter, the door opening / closing device of the elevator is simply referred to as “door opening / closing device”.

  FIG. 1 shows a door opening and closing device according to an embodiment of the present invention. The door opening and closing apparatus according to one embodiment includes a heel side mechanism 2 installed in the elevator hoe 1 and a landing side mechanism 4 installed in the stadium 3 so as to be interlocked with the heel side mechanism 2.

  The eaves side mechanism 2 is installed in the upper part of the entrance / exit of the elevator eaves 1 and is configured to open and close the eaves door 15 (see FIGS. 10A to 10C) provided in the elevator eaves 1.

  The landing side mechanism 4 is installed at the upper part of the entrance / exit of the landing 3. The landing side mechanism 4 is configured to open and close a landing side door 35 (see FIGS. 10A to 10C) provided in the landing 3 in conjunction with opening and closing of the side door 15 of the elevator pole 1. The interlocking here is executed by hooking the first operating body 21 and the second operating body 22 provided in the heel-side mechanism 2 and the protrusion 41 provided in the landing-side mechanism 4.

  The building where the elevator fence 1 is installed has a landing 3 on each floor. When the elevator fence 1 is located at the landing 3 on the predetermined floor, the fence-side mechanism 2 included in the elevator fence 1 is positioned opposite to the landing-side mechanism 4 included in the hall 3 on that floor. Both the heel side mechanism 2 and the landing side mechanism 4 shown in FIG. 1 are fully closed.

Hereinafter, the structures of the heel side mechanism 2 and the landing side mechanism 4 will be described in more detail.
2 shows the heel side mechanism 2 in perspective, and FIG. 3 shows the landing side mechanism 4 in perspective.

  4 and 5 show the heel side mechanism 2 in the fully closed state, and FIG. 6 shows the heel side mechanism 2 in the middle of the opening operation. FIG. 7 shows the heel side mechanism 2 in a fully opened state, and FIG. 8 shows the heel side mechanism 2 that is closed. FIG. 9 shows the heel side mechanism 2 in a state where the opening operation is prohibited.

  First, the heel side mechanism 2 will be described.

  As shown in FIGS. 2, 4 to 8, the eaves mechanism 2 includes a guide rail 27 fixed to the elevator eave 1 and a door opening / closing eave that is guided by the guide rail 27 and slides in the horizontal direction. The side slide part 20 and the drive device 28 which reciprocates the heel side slide part 20 in a horizontal direction are provided.

  The heel side slide unit 20 includes a slide main body 200, a first operating body 21 connected to the slide main body 200, and a second operating body 22 connected to the slide main body 200.

  The slide body 200 is coupled to the heel side door 15 via an interlocking mechanism 29 installed below the guide rail 27. The slide body 200 is reciprocated in the horizontal direction by the drive device 28. The heel side door 15 is opened and closed in conjunction with the slide movement of the slide body 200.

  The first operating body 21 will be described.

  The first operating body 21 integrally includes a projecting piece 215 configured to press against a projecting portion 41 (more specifically, a first projecting 411 described later) of the landing side mechanism 4 when the side door 15 is opened. Have. The first operating body 21 is connected to the slide body 200 so as to be movable in the horizontal direction within a predetermined range.

  The heel side mechanism 2 includes a moving mechanism 23 that changes the relative position of the first operating body 21. The moving mechanism 23 is a mechanism that changes the positional relationship of the first operating body 21 with respect to the slide body 200 in accordance with the opening / closing position of the heel side door 15 (the slide position of the slide body 200).

  The moving mechanism 23 is a mechanism that converts a part of the power that slides the heel side door 15 (that is, power that slides the heel side slide portion 20) into power that changes the relative position of the first operating body 21. . The moving mechanism 23 is a cam mechanism including a second guide rail 231 that is fixed so as not to move with respect to the guide rail 27, and a rotating member 232 that is guided by the second guide rail 231.

  The second guide rail 231 is fixed above the guide rail 27 in a posture slightly tilted from a posture parallel to the guide rail 27. The inclination here is such an inclination that the position on the first direction D1 side is positioned downward. The distance in the vertical direction between the guide rail 27 and the second guide rail 231 becomes smaller as the position is closer to the first direction D1.

  The rotating member 232 is rotatably connected to the slide body 200 about the rotating shaft 233. The rotating member 232 includes a roller-shaped first contact portion 234 and a second contact portion 235 at different locations spaced from the rotation shaft 233.

  The first contact portion 234 fits into the concave groove of the second guide rail 231, and the second contact portion 235 fits into a notch-shaped connection groove 236 formed in the first operating body 21.

  When the slide main body 200 moves in the first direction D1, the first contact portion 234 gradually moves downward while moving in the first direction D1 in the second guide rail 231 so that the rotating member 232 moves in one direction. Rotate. When the rotating member 232 rotates in one direction, the second contact portion 235 in the connection groove 236 functions to gradually push the first operating body 21 in the first direction D1.

  Therefore, the first operating body 21 moves relative to the slide body 200 in the first direction D1 as the slide body 200 moves in the first direction D1 to open the heel side door 15.

  Next, the second operating body 22 will be described.

  The second operating body 22 has a protruding piece 225 integrally. The protruding piece 225 protrudes in the same direction as the direction in which the protruding piece 215 of the first operating body 21 protrudes (direction on the landing 3 side). The second operating body 22 is rotatably connected to the slide main body 200 via the coupling mechanism 24.

  The coupling mechanism 24 includes a first arm 241 and a second arm 242 that are located at a distance from each other in the vertical direction. One end of the first arm 241 is rotatably connected to the slide body 200, and the other end of the first arm 241 is rotatably connected to the second operating body 22. Similarly, one end of the second arm 242 is rotatably connected to the slide body 200, and the other end of the second arm 242 is rotatably connected to the second operating body 22.

  That is, the slide body 200, the first arm 241, the second arm 242, and the second operation body 22 form a four-link link mechanism such as a pantograph. By this link mechanism, the second operating body 22 is supported movably on an arcuate locus.

  The coupling mechanism 24 is formed at a position where the regulation pin 244 protruding from the first arm 241 and the regulation pin 244 of the slide body 200 are inserted as a mechanism for regulating the rotation range of the first arm 241 with respect to the slide body 200. An arc-shaped groove 245 is provided (see FIG. 9).

  Similarly, the coupling mechanism 24 is a mechanism for restricting the rotation range of the second arm 242 with respect to the slide body 200, and a restriction pin 246 protruding from the second arm 242 and a position where the restriction pin 246 is inserted in the slide body 200. Are provided with arc-shaped grooves 247 (see FIG. 9).

  By restricting the rotation range of the first arm 241 and the second arm 242, the movement of the second operation body 22 relative to the slide body 200 is restricted within a predetermined range. Within the predetermined range, the second operating body 22 is movable along an arcuate locus. When the second operating body 22 is at the uppermost position of the arcuate trajectory, the second operating body 22 is positioned closest to the slide body 200 in the first direction D1 (see FIG. 4 and the like). When the second operating body 22 is at the lowest position on the arcuate locus, the second operating body 22 is positioned closest to the slide body 200 in the second direction D2 (see FIG. 9).

  The first direction D1 is a direction in which the heel side slide portion 20 (slide body 200) moves when the heel side door 15 is opened. The second direction D <b> 2 is a direction in which the heel side slide portion 20 (slide body 200) moves when the heel side door 15 is closed. The first direction D1 and the second direction D2 are opposite directions.

  When the second operating body 22 is in any position, the projecting pieces 225 of the second operating body 22 are parallel to each other at a distance in the horizontal direction with respect to the projecting pieces 215 of the first operating body 21. Located in. The protruding piece 225 is located on the first direction D1 side with respect to the protruding piece 215.

  Furthermore, the second operating body 22 includes a hook piece 222 and a support piece 223 at the upper end thereof. The hook piece 222 protrudes from the position on the first direction D1 side relative to the support piece 223 toward the elevator rod 1 side. A roller 221 is rotatably supported on the support piece 223.

  A guide member 26 is fixed to the second guide rail 231, and the roller 221 is configured such that the heel side slide portion 20 is located closest to the second direction D2 (that is, the heel side slide portion 20 is in the fully closed position). At the time), it rides on the guide member 26 and is positioned.

  The guide member 26 has an inclined surface 265 that is inclined downward in the first direction D1. When the heel-side slide part 20 moves from the fully closed position in the first direction D1, the roller 221 can descend along the inclined surface 265 of the guide member 26. When the heel-side slide part 20 moves in the second direction D2 to reach the fully closed position, the roller 221 can ride on the inclined surface 265 of the guide member 26.

  Further, a stopper 25 is fixed to the second guide rail 231 at a position away from the guide member 26 by a predetermined distance in the first direction D1.

  The stopper 25 does not catch on the hook piece 222 of the second operating body 22 when the second operating body 22 is at a predetermined reference position or higher, and the second operating body 22 is lower than the reference position. When it is in the position, it is configured to be hooked on the hook piece 222. This point will be described again.

  Next, the drive device 28 that drives the heel side slide portion 20 will be described.

  The drive device 28 includes a motor 281, a drive pulley 282, a driven pulley 283, and an endless belt 284.

  The drive pulley 282 is connected to the motor 281 and is rotationally driven by the motor 281. The driven pulley 283 is rotatably supported at a location away from the drive pulley 282 in the first direction D1. The endless belt 284 is bridged between the driving pulley 282 and the driven pulley 283, and a part of the endless belt 284 in the circumferential direction is fixed to the slide body 200.

  Therefore, by rotating the motor 281 forward and backward, the slide body 200 moves horizontally in the first direction D1 or the second direction D2 via the endless belt 284.

  Next, the landing side mechanism 4 will be described.

  As shown in FIGS. 1 and 3, the landing-side mechanism 4 includes a guide rail 44 fixed to the landing 3 side, a landing-side slide portion 40 that is guided by the guide rail 44 and is slidable in the horizontal direction, and an interlocking mechanism. 45 and an urging mechanism 48.

  The interlocking mechanism 45 is a mechanism that opens and closes the landing-side door 35 in conjunction with the sliding movement of the landing-side slide unit 40. The urging mechanism 48 is a mechanism that applies an urging force (spring force) in the second direction D <b> 2 to the landing-side slide part 40. When the landing side door 35 is opened, the landing side slide part 40 moves in the first direction D1, and when the landing side door 35 is closed, the landing side slide part 40 moves in the second direction D2. By the urging mechanism 48, the urging force in the closing direction is applied to the landing side door 35.

  The landing side slide unit 40 includes a slide main body 400 and a latch 42 that is rotatably supported by the slide main body 400 within a predetermined range. The latch 42 is integrally provided with a rotating shaft 421 and an interlocking claw 422. Further, the latch 42 integrally includes a protrusion 41 for sliding the landing side slide portion 40 in conjunction with the heel side slide portion 20. The protrusion 41 includes a first protrusion 411 and a second protrusion 412 that are located apart from each other.

  The first protrusion 411 is a roller-like member provided so as to be able to contact the protruding piece 215 of the first operating body 21. The second protrusion 412 is a roller-like member provided so as to be able to contact the protruding piece 225 of the second operating body 22.

  The claw 422 and the first protrusion 411 are located on the second direction D2 side with respect to the rotation shaft 421 of the latch 42. The first protrusion 411 is located above the rotation shaft 421. The second protrusion 412 is located below the rotation shaft 421 and on the first direction D1 side. Between the slide main body 400 and the latch 42, a spring material 46 for biasing the claw 422 of the latch 42 downward is disposed.

  A hooking member 47 to which the pawl 422 can be hooked is fixed to the landing side mechanism 4 so as not to move with respect to the guide rail 44. The hook member 47 is positioned directly below the claw 422 when the slide body 200 is in the fully closed position.

  The specific structures of the heel side mechanism 2 and the landing side mechanism 4 have been described above.

  When the elevator rod 1 is located at the landing 3, the rod side mechanism 2 and the landing side mechanism 4 are combined at an opposed position as shown in FIG.

  At this time, the protrusion 41 (the first protrusion 411 and the second protrusion 412) of the landing side mechanism 4 includes the protrusion 215 included in the first operation body 21 of the heel-side mechanism 2 and the protrusion included in the second operation body 22. 225.

  Below, the opening operation of an elevator is demonstrated based on FIG. 4 thru | or FIG.

  4 and 5 show the side mechanism 2 when the elevator car 1 is in the fully closed state, and FIG. 6 shows the car side mechanism 2 when the elevator car 1 is opening. FIG. 7 shows the heel side mechanism 2 when the elevator hoe 1 is in a fully opened state. 4, 6, and 7, with respect to the landing side mechanism 4, only the first protrusion 411, the second protrusion 412, and the rotation shaft 421 that the latch 42 has are indicated by broken lines.

  When the heel-side mechanism 2 is in the state shown in FIG. 4, when the motor 281 of the driving device 28 provided in the heel-side mechanism 2 is driven, the heel-side slide portion 20 is moved by the power transmitted through the endless belt 284. The slide movement in one direction D1 is started. When the heel-side slide portion 20 starts sliding, the heel-side door 15 starts to open.

  When the heel side slide part 20 slides slightly in the first direction D1, the projecting piece 215 of the first operating body 21 presses against the first projection 411 of the latch 42 provided in the landing side mechanism 4.

  From this point, when the heel side slide part 20 further moves in the first direction D1, the latch 42 rotates around the rotation shaft 421, the claw 422 (see FIG. 3) is lifted, and the claw 422 is hooked to the hooking member 47. Release (that is, interlock is released).

  From the time when the interlock is released, the landing-side slide portion 40 of the landing-side mechanism 4 starts sliding movement in the first direction D1 against the biasing force of the biasing mechanism 48. Therefore, the timing at which the landing side door 35 starts the opening operation is delayed from the timing at which the side door 15 starts the opening operation.

  Therefore, at the stage where the door of the elevator starts to open, there is a deviation between the position of the end surface 150 of the side door 15 and the position of the end surface 350 of the landing side door 35 as shown in FIG. 10B.

  After the heel side slide part 20 and the landing side slide part 40 start to slide integrally, the moving mechanism 23 operates. As the moving mechanism 23 operates, the first operating body 21 moves relative to the slide body 200 in the first direction D1 as the heel side slide part 20 and the landing side slide part 40 move in the first direction D1. To do.

  When the heel side slide part 20 reaches the fully open position shown in FIG. 7, the first operating body 21 moves relative to the slide body 200 in the first direction D1 to the extent that the initial deviation is eliminated, and the landing side slide The portion 40 moves relative to the heel side slide portion 20 in the first direction D1. As shown in FIG. 10C, at the stage where the side door 15 is fully opened, the position of the end surface 350 of the landing side door 35 is substantially flush with the position of the end surface 150 of the side door 15.

  By the way, when the elevator rod 1 is located at the landing 3, the projection 41 is interposed between the first operating body 21 and the second operating body 22, so that the second slide portion 20 is opened when the second sliding portion 20 is opened. The operating body 22 is held at a position where the opening operation is permitted (hereinafter referred to as “first position”).

  This point will be described in more detail with reference to FIGS.

  As shown in FIGS. 4 and 5, the roller 221 rides on the guide member 26 and is positioned when the heel side slide portion 20 is at the fully closed position on the second direction D2 side. At this time, the second operating body 22 is held at the uppermost position of the arc-shaped trajectory.

  When the heel side slide part 20 moves from the fully closed position in the first direction D1, the second operating body 22 moves downward along an arc-shaped locus by its own weight. The movement of the second operating body 22 at this time is smoothly guided by the roller 221 descending along the inclined surface 265 of the guide member 26.

  As shown in FIG. 6, when the second operating body 22 moves downward (obliquely downward) to some extent, the second operating body 22 hits the second protrusion 412. Held in the first position shown.

  The first position is a position higher than the reference position described above. Therefore, the hook piece 222 of the second operating body 22 is not caught by the stopper 25 during the movement of the heel side slide part 20 in the first direction D1, and the slid side slide part 20 slides until it reaches the fully open position of FIG. Movement is allowed. In FIG. 6, the sliding direction of the heel side slide part 20 is shown by the white arrow.

  As described above, when the elevator rod 1 is located at the landing 3, the opening operation of the rod-side door 15 is allowed without the second operating body 22 colliding with the stopper 25.

  On the other hand, when the elevator rod 1 is not located at the landing 3 (that is, when the elevator rod 1 is located between the upper and lower landings 3 due to a power failure or the like), it is between the first operating body 21 and the second operating body 22. Further, the protrusion 41 of the hall side mechanism 4 is not interposed.

  Therefore, as shown in FIG. 9, the second operating body 22 collides with the stopper 25 as soon as the heel-side slide portion 20 starts sliding in the first direction D1 (hereinafter referred to as “second position”). Retained.

  That is, in the state where the protrusion 41 (the first protrusion 411 and the second protrusion 412) is not interposed between the first operation body 21 and the second operation body 22, the heel side slide part 20 is moved from the fully closed position to the first direction D1. The second operating body 22 moves to the second position shown in FIG. 9 by its own weight. The movement of the second operating body 22 at this time is smoothly guided by the roller 221 descending along the inclined surface 265 of the guide member 26. The second position is the lowest position in the arc-shaped locus of the second operating body 22.

  Since the second position is lower than the reference position, the hook piece 222 of the second operating body 22 in the second position is caught by the stopper 25 during the movement in the first direction D1, The above opening operation is prohibited.

  As a result, when the elevator car 1 stops between the upper and lower landings 3 due to a power failure or the like, the opening operation of the car side door 15 is mechanically prohibited, and the safety is further enhanced.

  Next, the elevator closing operation will be described.

  FIG. 8 shows the heel side mechanism 2 when the elevator 籠 1 is closing. The white arrow in the figure indicates the sliding direction of the heel side slide portion 20.

  As shown in FIG. 8, when the heel-side slide portion 20 moves in the second direction D2, the landing-side slide portion 40 is interlocked with the heel-side slide portion 20 by the urging force applied from the urging mechanism 48. Move in two directions D2. As a result, the landing-side door 35 closes in conjunction with the heel-side door 15.

  At this time, since the second operating body 22 is held at a position higher than the reference position, the second operating body 22 does not hit the stopper 25 while the heel side slide portion 20 moves in the second direction D2.

  When the heel side slide portion 20 reaches the fully closed position (see FIGS. 4 and 5), the roller 221 rides on the guide member 26, and the second operating body 22 is held at the uppermost position of the arc-shaped locus. The latch 42 of the landing-side slide part 40 lowers the claw 422 by the urging force of the spring member 46, and the claw 422 is hooked on the hooking member 47, thereby interlocking.

  When the elevator 物 1 is closed, if a person or an object is caught in the heel door 15, the movement of the heel side slide portion 20 is restrained, and a control unit (not shown) that detects this restricts the motor 281. Reverse rotation or stop is performed to reverse or stop the sliding movement of the heel side door 15. The sliding movement of the landing side door 35 is also reversed or stopped in conjunction with the side door 15.

  When a person or an object is caught in the landing side door 35 while the elevator rod 1 is closed, the protrusion 41 (second protrusion 412) of the landing side sliding portion 40, which is restricted in movement, is The projecting piece 225 of the second operation body 22 provided in the slide unit 20 is caught. Thereby, the movement of the heel side slide part 20 is restrained, and a control part (not shown) that detects this restrains the motor 281 to reversely rotate or stop, and reverses or stops the slide movement of the heel side door 15. The landing side door 35 reverses or stops the sliding movement in conjunction with the side door 15.

  As described with reference to the accompanying drawings, the door opening and closing device of one embodiment has the following configuration as a first feature.

  The door opening and closing device of one embodiment is installed in the elevator cage 1, and is installed in the hall mechanism 2 that is configured to open and close the cage door 15 that the elevator cage 1 has, and the hall that the hall 3 has. And a landing-side mechanism 4 configured to open and close the side door 35.

  The heel side mechanism 2 includes a heel side slide portion 20, a slide main body 200, a first operating body 21, a second operating body 22, a moving mechanism 23, a connecting mechanism 24, and a stopper 25.

  The heel-side slide portion 20 slides in the first direction D1 relative to the elevator 籠 1 to open the heel-side door 15, and slides in the second direction D2 opposite to the first direction D1. Then, the heel side door 15 is closed. The slide body 200, the first operating body 21, and the second operating body 22 are provided on the heel side slide portion 20. The moving mechanism 23 moves the first operating body 21 relative to the slide body 200 in the first direction D1 when the heel side slide portion 20 slides in the first direction D1. The connection mechanism 24 connects the second operating body 22 to the slide body 200 so as to be displaceable along a predetermined locus. The stopper 25 is installed in the elevator car 1.

  The landing side mechanism 4 includes a landing side slide part 40 and a protrusion 41.

  The landing-side slide part 40 opens the landing-side door 35 by sliding in the first direction D1 with respect to the landing 3, and closes the landing-side door 35 by sliding in the second direction D2. The protrusion 41 is provided on the landing side slide part 40, and moves the landing side slide part 40 in the first direction D1 by being pushed by the first operating body 21 when the heel side door 15 is opened.

  In the heel side mechanism 2, when the protrusion 41 is positioned between the first operation body 21 and the second operation body 22, the second operation body 22 hits the protrusion 41 when the heel side door 15 starts to open. The second operation body 22 that is held at the first position on the predetermined locus and does not hit the stopper 25 is configured to allow the opening operation of the heel side door 15 to be permitted. Has been.

  When the protrusion 41 is not positioned between the first operating body 21 and the second operating body 22, the heel side mechanism 2 starts the opening operation of the heel side door 15, and the second operating body 22 When the part of the second operating body 22 (hanging piece 222) at the second position on the locus is in contact with the stopper 25, the opening operation of the heel side door 15 is prohibited. It is configured as follows.

  Therefore, when the elevator 籠 1 is located at the landing 3, the landing side door 35 opens in conjunction with the heel side door 15, and the landing side door 35 moves relative to the heel side door 15, thereby The shift in the timing of starting the movement of the side door 15 and the landing side door 35 is corrected. In addition, when the elevator car 1 is located between the upper and lower landings 3, the opening operation of the car side door 15 is mechanically prohibited, and safety is further enhanced.

  Moreover, the door opening / closing apparatus of one Embodiment comprises the following structures in addition to a 1st characteristic as a 2nd characteristic.

  In the door opening and closing device of one embodiment, the heel side mechanism 2 further includes a roller 221 provided in the second operating body 22 and a guide member 26 installed in the elevator ridge 1.

  The guide member 26 has an inclined surface 265 that hits the roller 221 and guides the second operating body 22.

  Therefore, according to the door opening and closing device of one embodiment, the movement of the second operating body 22 on the predetermined locus is smoothly guided by the roller 221 rolling on the inclined surface 265.

  Although the embodiment has been described above, the elevator opening / closing device is not limited to the above-described embodiment, and an appropriate design change or a known technique can be combined in the embodiment.

DESCRIPTION OF SYMBOLS 1 Elevator １５ 15 籠 Side door 2 籠 Side mechanism 20 籠 Side slide part 21 First operation body 22 Second operation body 221 Roller 23 Moving mechanism 24 Connection mechanism 25 Stopper 26 Guide member 200 Slide body 265 Inclined surface 3 Platform 35 Platform side Door 4 Platform side mechanism 40 Platform side slide part 41 Projection part D1 First direction D2 Second direction

Claims (2)

A side mechanism configured to open and close a side door of the elevator side installed in the elevator side;
A landing-side mechanism that is installed at a landing and configured to open and close a landing-side door of the landing, and
The heel side mechanism is
A slidable movement in the first direction relative to the elevator 籠 causes the heel side door to open, and a slidable movement in the second direction opposite to the first direction causes the heel side door to close. Side slide part,
A slide body provided on the heel side slide part;
A first operating body provided on the heel side slide part;
A second operating body provided on the heel side slide part;
A moving mechanism for moving the first operating body relative to the slide body in the first direction when the heel-side slide portion slides in the first direction;
A coupling mechanism that couples the second operating body to the slide body so as to be displaceable along a predetermined locus;
A stopper installed in the elevator car,
The hall side mechanism is:
A landing-side slide portion that opens the landing-side door by sliding in the first direction relative to the landing, and closes the landing-side door by sliding in the second direction;
A protrusion that is provided on the landing-side slide portion and moves the landing-side slide portion in the first direction by being pushed by the first operating body when the heel-side door is opened.
The heel side mechanism is
When the protrusion is positioned between the first operation body and the second operation body, when the heel door starts to open, the second operation body hits the protrusion, so that the predetermined locus It is held in the first position above, and the second operation body in the first position does not hit the stopper, so that the opening operation of the heel side door is allowed,
When the protrusion is not positioned between the first operating body and the second operating body, the second operating body is moved to a second position on the predetermined locus when the heel side door starts to open. The elevator door opening and closing characterized by being configured such that the opening operation of the heel side door is prohibited when a part of the second operating body held and in the second position hits the stopper. apparatus. The heel side mechanism is
A roller provided on the second operating body;
A guide member installed in the elevator car,
The elevator door opening and closing device according to claim 1, wherein the guide member has an inclined surface that contacts the roller and guides the second operating body.

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