JP5319712B2 - Elevator door opening prevention device - Google Patents

Description

  The present invention relates to an elevator door opening prevention device for preventing an elevator car from running in a door open state.

  As this kind of door-opening travel prevention device, for example, a technique described in Patent Document 1 is known. In the technique described in Patent Document 1, a fall prevention means for detecting the opening of a car based on the outputs of a door open / close detection switch for detecting the open / closed state of the doorway and a car position detecting device for detecting the position of the car. When the fall prevention means detects the opening of the car, the rope gripper that grips the rope that suspends the car is operated to prevent the car from further running.

JP 2007-55691 A

  However, in the technique described in Patent Document 1, the outputs of the door opening / closing detection switch and the car position detection device are taken into the fall prevention means, and after the car is opened through the software processing in the fall prevention means, The rope gripper is operated. Therefore, if the software processing in the fall prevention means is not normally performed, there is a possibility that the car cannot be prevented from opening the door, which is not preferable.

  The present invention has been made in view of such problems, and it is an object of the present invention to provide an elevator door-opening travel prevention device that more reliably prevents the car from opening the door and improves the safety of the elevator. It is said.

According to the first aspect of the present invention, the car side doorway formed in the car is opened and closed by a car side door that moves in the left-right direction, and the car travels with the car side doorway open. In the elevator door opening travel prevention device to prevent,
Provided with a stopper rod to operate entry into the elevator shaft wall side in conjunction with a range of up to a predetermined advancing limit position to the door-opening operation of the car-side door to the car, blocking the travel by engagement with the stopper rod that advances Fix the stopper bracket to the hoistway wall,
The stopper rod is attached to the car side door, and the stopper rod moves together with the car side door that opens and closes the door.
Between the stopper rod and the car side door, a linear motion guide means for guiding the stopper rod so as to be movable relative to the car side door in the left-right direction, and the stopper rod facing the door opening direction side are attached. And a spring member to be energized,
An advancement restricting portion that restricts further advancement operation of the stopper rod at the advancement limit position engaged with the stopper bracket is provided on the hoistway peripheral wall side as a part of the stopper bracket,
While the stopper rod is fully closed the car-side door is detached from the stopper bracket, during the door-opening operation of the car-side door in the middle of the door-opening operation in terms of the stopper rod is engaged with the stopper bracket It is characterized in that it reaches the advancing limit position, and thereafter, the car side door is further opened while moving relative to the stopper rod .

  Therefore, according to the first aspect of the present invention, when the car is landed on the service floor and the car side door is opened, the stopper is provided when the car side doorway is in an incompletely opened state during the door opening operation. Since the rod and the stopper bracket are engaged with each other, the car is prevented from traveling by the engagement of the stopper rod and the stopper bracket when the car side doorway is in a fully open state and an incompletely open state. In addition, when the car-side door is opened, the stopper rod reaches the advance limit position during the door-opening operation, and then the car-side door moves further relative to the stopper rod and further opens the door. Thus, the amount of protrusion of the stopper rod toward the hoistway peripheral wall when the car side doorway is fully opened can be reduced.

The invention according to claim 2 is such that the car side doorway formed in the car is opened and closed by a car side door that moves in the left-right direction, and the car travels with the car side doorway open. In the elevator door opening travel prevention device to prevent,
  A swingable car stopper that moves forward to the hoistway peripheral wall side within the range up to a predetermined advance limit position in conjunction with the opening operation of the car side door is provided on the car and engaged with the car stop that has advanced. Fix the stopper plate against the hoistway circumferential wall,
  The car stopper is supported by the car housing so as to be swingable,
  A spring member for biasing the car stopper in the backward direction is interposed between the car stopper and the car housing, and a stopper for pressing the car stopper in the advancing direction when the car side door is opened. The rod is attached to the car side door, and when the car side door is opened, the car stopper is engaged with the stopper plate by being pressed by the stopper rod that moves together with the car side door. And
  Between the stopper rod and the car side door, a linear motion guide means for guiding the stopper rod so as to be movable relative to the car side door in the left-right direction, and the stopper rod facing the door opening direction side are attached. And a spring member to be energized,
  The swing of the car stopper pressed by the stopper rod is regulated at a predetermined advance limit position by engagement with the stopper plate,
  When the car-side door is fully closed, the car stopper is detached from the stopper plate. On the other hand, when the car-side door is opened, the car stopper is pressed by the stopper rod during the door-opening operation. It is characterized in that after reaching the advance limit position after engaging with the plate, the car side door is further opened relative to the stopper plate while moving relative to the stopper plate.

The invention described in claim 3 is such that the car side doorway formed in the car is opened and closed by a car side door that moves in the left-right direction, and the car travels with the car side doorway open. In the elevator door opening travel prevention device to prevent,
  A car stopper that moves forward to the hoistway peripheral wall side within the range up to a predetermined advance limit position in conjunction with the opening operation of the car side door is provided on the car and engaged with the car stop that has advanced to prevent travel. Fixing the stopper plate to the hoistway peripheral wall,
  The car stopper is supported by the car housing via a pair of link members so as to constitute a parallel link mechanism, and is always urged in the door closing direction of the car door by its own weight,
  The car stopper has a guide surface inclined with respect to the door opening / closing direction of the car side door, and the car door abuts the guide surface during the door opening operation to cam the car stopper upward. An operating body to be driven is provided,
  While the car stopper is in the lowered position when the car side door is fully closed, the car stopper is detached from the stopper plate, while the car side door is opened during the door opening operation. When the car stopper is pushed up by the operation body, the car stopper advances and engages with the stopper plate. After that, the operation body moves along the lower surface of the car stopper so that the car-side door moves relative to the car stopper. It is characterized by further opening operation while moving.

According to the present invention, during the door opening operation of the car-side door, the locked member (stopper rod, car stopper) engages with the locking member (stopper bracket, stopper plate) during the door opening operation. When the car side doorway is fully open or incompletely open, it is possible to reliably prevent the car from traveling by engaging the locked member and the locking member, thereby dramatically improving the safety of the elevator. improves. Further, by reducing the protruding amount of the locked member to the hoistway peripheral wall side when the car side doorway is fully opened, it is advantageous for space saving of the hoistway.

The front view which shows the door opening / closing mechanism of the cage | basket | car in the state which the car side doorway fully closed as the 1st Embodiment of this invention. The perspective view which expanded the principal part of FIG. The perspective view which shows the state which fully opened the cage | basket side doorway in FIG. The front view which shows the door opening / closing mechanism of the cage | basket in the state which the cage | basket side doorway was fully closed as 2nd Embodiment of this invention. The perspective view which expanded the principal part of FIG. The perspective view which expanded the further principal part of FIG. The perspective view which shows the state which fully opened the cage | basket side doorway in FIG. The front view which shows the door opening-and-closing mechanism of the cage | basket in the state which the cage | basket side doorway was fully closed as the 3rd Embodiment of this invention. The perspective view which expanded the principal part of FIG. It is the perspective view which expanded the principal part of FIG. 8, Comprising: The figure which shows the state which fully opened the cage | basket side doorway.

  1 to 3 show a more specific first embodiment of an elevator door-opening travel prevention device according to the present invention. 1 is a front view showing the door opening / closing mechanism of the car side doorway, FIG. 2 is an enlarged perspective view of the main part of FIG. 1, and FIGS. 1 and 2 illustrate the state where the car side doorway is fully closed. Yes. On the other hand, FIG. 3 is a view showing a state where the car side doorway is fully opened in FIG.

  As shown in FIG. 1, a pair of left and right guide rails 3 are erected in parallel in the hoistway 2, and the car 1 travels in the hoistway 2 in the vertical direction along both guide rails 3. It is like that. Both guide rails 3 are formed to have a substantially T-shaped cross section, and are fixed to the hoistway circumferential wall 4 via a rail bracket (not shown).

  The car 1 is formed with a car side doorway 1 a for passengers to get on and off the car 1, and the car side doorway 1 a is opened and closed by a pair of left and right car side doors 5 and 6. In addition, the door opening / closing type of the car-side doors 5 and 6 is a so-called double-opening type.

  Both the car side doors 5 and 6 have door panels 5a and 6a for opening and closing the car side doorway 1a, and substantially rectangular plate-like door hangers 5b and 6b attached to the upper edge of the door panel, respectively. The car-side doors 5 and 6 are respectively suspended from door rails 9 to be described later by door rollers (not shown) mounted on the back surfaces of the door hangers 5b and 6b. In addition, although illustration is abbreviate | omitted, the guide shoe guided to a sill is attached to the lower end of both the door panels 5a and 6a so that it may be known.

  On the other hand, a door operator 7 for opening and closing the car-side doors 5 and 6 is provided on the upper portion of the car 1. A door rail 9 extending in the left-right direction is mounted on the operator board 8 of the door operator 7, and a deceleration mounted rotatably on the right end of the operator board 8 in FIG. 1 above the door rail 9. A pulley 10 and a driven pulley 11 that is rotatably attached to the left end of the operator board 8 in FIG. 1 are provided. An endless drive belt 12 is wound between the speed reduction pulley 10 and the driven pulley 11, and one car-side door 5 is disposed on the upper portion of the drive belt 12, and the lower side of the drive belt 12 is disposed on the lower side. The other car side door 6 is connected to the part via connecting members 13 and 14, respectively.

  When the door motor 15 rotationally drives the speed reduction pulley 10 via the speed reduction belt 16, the car side doors 5 and 6 are brought into contact with and separated from each other in the left-right direction to open and close the car side entrance 1a. In addition, the door hanger 5b of the car-side door 5 on the right side in FIG. 1 is provided with a door engaging device 17 that engages with a landing-side door (not shown) as is well known. The outer landing side door is interlocked with the car side door 5.

  Further, on the surface of the door hanger 6b of the left side car-side door 6 in FIG. 1, a stopper rod 18 as a member to be locked is mounted in a posture along the left-right direction, that is, the door opening / closing direction. Between the stopper rod 18 and the door hanger 6b, a pair of left and right support members 19a and 19b serving as linear guide means for guiding the stopper rod 18 to be movable relative to the door hanger 6b in the left-right direction, and a stopper rod 18 are provided. A compression coil spring 20 as an urging means that constantly urges toward the door opening direction side is interposed.

  More specifically, as shown in FIG. 2, the stopper rods 18 are inserted through the support members 19a and 19b fixed to the door hanger 6b, while the compression coil spring 20 is interposed between the support members 19a and 19b. 18 is extrapolated. Further, the first stopper pin 22a for locking one end of the compression coil spring 20 with respect to the stopper rod 18 and the support member 19b on the right side in FIG. 2 come into contact with the door hanger 6b toward the door opening direction of the stopper rod 18. The second stopper pin 22b for restricting the most advanced position is press-fitted so as to penetrate the stopper rod 18 in the radial direction. That is, the compression coil spring 20 is interposed between the first stopper pin 22a and the right support member 19b in FIG. 2, and the stopper coil 18 is directed toward the door opening direction side with respect to the door hanger 6b by the compression coil spring 20. Always energized. In the door-closed state shown in FIG. 2, the stopper rod 18 is held at the most advanced position by the contact between the second stopper pin 22b and the support member 19b. A rubber cushioning member 21 is attached to the tip of the stopper rod 18.

  On the other hand, a stopper bracket 23 is mounted on the guide rail 3 as a locking member that can be engaged with the stopper rod 18. The stopper bracket 23 includes a locking portion 24 in which an elongated hole-shaped locking hole 24a extending in the vertical direction is formed, and an advancement restriction provided at a predetermined interval on the side of the locking portion 24 opposite to the stopper rod 18. And an advancing regulation section 25 as a means.

  Here, when the car 1 reaches the landing on the service floor and the car-side doors 5 and 6 are opened, the stopper rod 18 advances to the hoistway peripheral wall 4 side together with the car-side door 6 moving in the door opening direction. Will work. The stopper rod 18 enters the locking hole 24a and engages with the locking portion 24 in the middle of the door opening operation, and the buffer member 21 of the stopper rod 18 hits the advance restricting portion 25, and the protruding limit position thereof. Thus, further advancement of the stopper rod 18 is restricted. Thus, after the stopper rod 18 reaches the advance limit position, only the car side door 5 moves further in the door opening direction while compressing and deforming the compression coil spring 20, and the car side doorway is opened as shown in FIG. Fully open. That is, in the present embodiment, the stopper rod 18 engages with the locking portion 24 during the door opening operation, so that the car is prevented from being opened even when the car side doorway 1a is incompletely opened. Will be. In other words, after the stopper rod 18 reaches the advance limit position, only the car-side door 5 moves in the door opening direction while moving relative to the stopper rod 18. The movement amount of the rod 18 is smaller than the movement amount when the car-side door 5 is opened.

  On the other hand, when the car doors 5 and 6 are closed, only the car door 6 is closed while the stopper rod 18 is held at the advanced limit position by the biasing force of the compression coil spring 20. Advances relative to the door hanger 6b. Then, when the stopper rod 18 reaches the most advanced position relative to the door hanger 6b during the door closing operation, the stopper rod 18 moves backward together with the car-side door 6 and is detached from the stopper bracket 23 so that the car 1 can run. Become. That is, in the present embodiment, when the car doors 5 and 6 are closed, the engagement state between the stopper rod 18 and the stopper bracket 23 is maintained until the door closing operation is performed, and the door closing operation is performed. The stopper rod 18 is detached from the stopper bracket 23 after proceeding to a safe state.

  Therefore, according to the present embodiment, the stopper rod 18 is reliably engaged with the stopper bracket 23 when the car-side doorway 1a is fully open, so that the car 1 can be prevented from being opened open. The safety of the elevator can be increased.

  In particular, since the stopper rod 18 is engaged with the stopper bracket 23 not only when the car side doorway 1a is fully opened but also when the car side doorway 1a is in an incompletely open state, both car sides There is an advantage that the traveling of the car 1 can be surely prevented even during the door opening / closing operation of the doors 5 and 6, and the safety of the elevator can be further enhanced.

  Further, when the car-side door 6 is opened, the movement of the stopper rod 18 in the door-opening direction is restricted by the advance restricting portion 25 of the stopper bracket 23, and the car 1 of the stopper rod 18 when the car-side doorway 1a is fully opened. Since the amount of protrusion from the housing is made relatively small, there is an advantage that the space of the hoistway 2 can be saved in the left-right direction.

  Furthermore, the simple structure with the stopper rod 18 mounted on the front surface of the door hanger 6b can prevent the car 1 from being opened, so that the mechanism can be made small and light, and the elevator can be operated during maintenance. Sufficient maintenance work space can be secured on the car for workers to work and move.

  4-7 is a figure which shows the 2nd Embodiment of this invention. 4 is a front view showing the door opening / closing mechanism of the car side doorway, FIG. 5 is an enlarged perspective view of the main part of FIG. 4, and FIG. 6 is an enlarged perspective view of the main part of FIG. -6 show the state where the car side doorway is fully closed. On the other hand, FIG. 7 is a view showing a state where the car side doorway is fully opened in FIG.

  In the second embodiment shown in FIG. 4, in addition to the stopper rod 26 substantially the same as that of the first embodiment, a car stopper 27 as a locked member is provided so as to be swingable with respect to the car housing. The stopper rod 26 presses the car stopper 27 when the car-side doors 5 and 6 are opened. That is, in the present embodiment, the stopper rod 26 functions as an operating body for operating the car stopper 27.

  More specifically, as shown in FIGS. 5 and 6, a bracket 28 having a swing shaft 28 a extending in the vertical direction is fixed to a car frame (not shown) that is a car housing, and is substantially cylindrical in the car stopper 27. The attachment base 29 is extrapolated in a loosely fitted state on the swing shaft 28 a of the bracket 28. Further, a pressing portion 30 to be pressed by the stopper rod 26 and a stopper portion 31 that can be engaged with a stopper plate 33 to be described later extend from the mounting base 29 in the radial direction. As the car stopper 27 swings about the swing shaft 28 a, the stopper portion 31 moves forward and backward toward the stopper plate 33.

  A torsion coil spring 32 as an urging means is interposed between the car stopper 27 and the bracket 28. One end of the torsion coil spring 32 is locked to the bracket 28, while the other end is locked to the pressing portion 30. By this torsion coil spring 32, the car stopper 27 is constantly urged in the swinging direction in which the stopper portion 31 is retracted toward the non-stopper bracket 33 side. In addition, in the door-closed state of the car side doorway 1a shown in FIG. 5, the car stopper 27 is held at the retreat limit position by a swing regulating member not shown.

  On the other hand, a stopper plate 33 as a locking member fixed to the guide rail 3 is formed with a substantially rectangular locking hole 33a extending in the vertical direction, and a car stopper is inserted into the locking hole 33a. 27 stopper portions 31 can enter.

  When the car-side doors 5 and 6 are opened while the car 1 is landing on the landing, the stopper rod 26 that moves together with the car-side door 6 in the middle of the door-opening action is the pressing portion 30 of the car stopper 27. The pressing portion 30 is pressed in the door opening direction by the stopper rod 26. As a result, the car stopper 37 swings, and as shown in FIG. 7, the stopper portion 31 of the car stopper 27 enters the locking hole 33a, and the tip portion of the stopper portion 31 is outside the locking hole 33a. Further advancement of the stopper portion 31 is restricted at the advance limit position in contact with the side surface 33b using the outer side surface 33b as the advance restriction means. As described above, when the car stopper 27 reaches the advance limit position, further movement of the stopper rod 26 is restricted by the car stopper 27. Thereafter, only the car-side door 5 compresses and deforms the compression coil spring 20 further. The door is opened and the car side doorway is fully opened as shown in FIG.

  On the other hand, when the car-side doors 5 and 6 are closed, first, the car-side door 6 is held while the car stopper 27 is held at the advanced limit position by the pressing operation force of the stopper rod 26 based on the urging force of the compression coil spring 20. Only moves in the door closing direction, and the stopper rod 26 moves forward relative to the door hanger 6b. Then, when the stopper rod 26 reaches the most advanced position with respect to the door hanger 6b during the door closing operation, the stopper rod 26 moves in the door closing direction together with the car side door 6 and moves away from the car stopper 27, and the car stopper. 27 is oscillated in the oscillating direction in which the stopper portion 31 moves backward toward the non-stopper plate 33 side by the urging force of the torsion coil spring 32. Accordingly, the stopper portion 31 is detached from the stopper plate 33, and the car 1 can run.

  Therefore, according to the present embodiment, substantially the same effect as that of the first embodiment can be obtained, and the car stopper 27 is supported by the car housing, so that the car can be prevented from opening the door. There is a merit that the car body comes to bear the running prevention force, which is advantageous in terms of strength.

  8 to 10 are views showing a third embodiment of the present invention. 8 is a front view showing the door opening / closing mechanism of the car side entrance, FIG. 9 is an enlarged perspective view of the main part of FIG. 8, and FIGS. 8 and 9 illustrate the state where the car side entrance is fully closed. Yes. On the other hand, FIG. 10 is an enlarged perspective view of the main part of FIG. 8 and shows a state in which the car side doorway is fully opened.

  In the third embodiment shown in FIG. 8, the lower end portion of the mounting plate 34a extending in the vertical direction of the operating body 34 is fixed to the door hanger 6b, and the rotatable roller 34b is attached to the upper end of the mounting plate 34a. Is provided. On the other hand, a car stopper 35, which is a locked member, is connected to the left end in FIG. 8 of the upper end edge of the operator board 8 via a pair of left and right link members 36a and 36b. That is, the car stopper 35, the link members 36a and 36b, and the operator board 8 constitute a parallel link mechanism having the operator board 8 as a fixed node, and the car stopper is guided by the link members 36a and 36b. 35 can be advanced and retracted toward a stopper plate 39 which will be described later. The car stopper 35 is constantly urged toward the door closing direction of the car side door 6 by its own weight, and when the car side doorway 1a shown in FIG. A restricting member is held at the retreat limit position.

  More specifically, as shown in FIG. 9, the car stopper 35 has a substantially trapezoidal plate-like stopper main body 37 and a protruding portion 38 extending from the stopper main body 37 to a stopper plate 39 described later. The guide surface 37 a, which is the end surface of the stopper body 37 on the side opposite to the stopper plate 39, is formed so as to be inclined downward toward the door opening direction of the car-side door 6.

  On the other hand, a stopper plate 39 as a locking member fixed to the guide rail 3 is formed with a substantially rectangular locking hole 39a extending in the vertical direction.

  In the elevator door-opening travel prevention apparatus configured as described above, when the car-side doors 5 and 6 are opened while the car 1 is landing on the landing, the car stopper 35 is moved during the door-opening operation. The cam is driven by the operating body 34 that moves together with the side door 6 and advances toward the stopper plate 39 side. Specifically, when the roller 34b of the operating body 34 pushes up the car stopper 35 along the guide surface 37a, the car stopper 35 translates by a predetermined amount toward the stopper plate 39 with the rotation of both link members 36a and 36b. Then, as shown in FIG. 10, the protruding portion 38 of the car stopper 35 enters the locking hole 40 a of the stopper plate 39. In this way, the car stopper 35 and the stopper plate 39 engage with each other to prevent the car 1 from traveling. After the car stopper 35 is engaged with the stopper plate 39, the roller 34b keeps the engagement state between the car stopper 35 and the stopper plate 39 as the car-side door 5 moves further in the door opening direction. It moves along the lower surface of the main body 37, and the car side doorway 1a is fully opened.

  On the other hand, during the door closing operation of the car-side doors 5 and 6, the operating body 34 lowers the car stopper 35 along the guide surface 37a in the middle of the door closing operation, and both links associated with the lowering of the car stopper 35. With the rotation of the members 36a and 36b, the car stopper 35 moves backward to the side opposite to the stopper plate 39. As a result, the protruding portion 38 of the car stopper 35 is detached from the stopper plate 39, and the car 1 can run.

  Therefore, the present embodiment can provide substantially the same effect as that of the first embodiment.

  In the first to third embodiments described above, the door opening / closing prevention device for an elevator according to the present invention is applied to a so-called double door type elevator which is a so-called double door type. It goes without saying that the present invention can also be applied to an open type elevator.

DESCRIPTION OF SYMBOLS 1 ... Car 1a ... Car side doorway 4 ... Hoistway surrounding wall 6 ... Car side door 18 ... Stopper rod (locked member)
19a: Support member (linear motion guide means)
19b ... Support member (linear motion guide means)
20 ... Compression coil spring (biasing means)
23 ... Stopper bracket (locking member)
25 ... Advancement Control Department
26 ... Stopper rod (operating body)
27 ... Cage stopper (member to be locked)
32 ... Torsion coil spring (biasing means)
33 ... Stopper plate (locking member)
33b ... Outer surface of locking hole (projection restricting means)
34 ... Operating body 35 ... Cage stopper (locked member)
39 ... Stopper plate (locking member)

Claims (3)

An elevator door opening / closing prevention device for preventing a car from running while the car side doorway formed in the car is opened and closed by a car side door that moves in the left-right direction. In
Provided with a stopper rod to operate entry into the elevator shaft wall side in conjunction with a range of up to a predetermined advancing limit position to the door-opening operation of the car-side door to the car, blocking the travel by engagement with the stopper rod that advances Fix the stopper bracket to the hoistway wall,
The stopper rod is attached to the car side door, and the stopper rod moves together with the car side door that opens and closes the door.
Between the stopper rod and the car side door, a linear motion guide means for guiding the stopper rod so as to be movable relative to the car side door in the left-right direction, and the stopper rod facing the door opening direction side are attached. And a spring member to be energized,
An advancement restricting portion that restricts further advancement operation of the stopper rod at the advancement limit position engaged with the stopper bracket is provided on the hoistway peripheral wall side as a part of the stopper bracket,
When the car-side door is fully closed, the stopper rod is detached from the stopper bracket . On the other hand, when the car-side door is opened, the stopper rod is engaged with the stopper bracket during the door-opening operation. An elevator door-opening travel prevention device characterized in that the car-side door is further opened while moving relative to the stopper rod after reaching the advance limit position. An elevator door opening / closing prevention device for preventing a car from running while the car side doorway formed in the car is opened and closed by a car side door that moves in the left-right direction. In
  A swingable car stopper that moves forward to the hoistway peripheral wall side within the range up to a predetermined advance limit position in conjunction with the opening operation of the car side door is provided on the car and engaged with the car stop that has advanced. Fix the stopper plate against the hoistway circumferential wall,
  The car stopper is supported by the car housing so as to be swingable,
  A spring member for biasing the car stopper in the backward direction is interposed between the car stopper and the car housing, and a stopper for pressing the car stopper in the advancing direction when the car side door is opened. The rod is attached to the car side door, and when the car side door is opened, the car stopper is engaged with the stopper plate by being pressed by the stopper rod that moves together with the car side door. And
  Between the stopper rod and the car side door, a linear motion guide means for guiding the stopper rod so as to be movable relative to the car side door in the left-right direction, and the stopper rod facing the door opening direction side are attached. And a spring member to be energized,
  The swing of the car stopper pressed by the stopper rod is regulated at a predetermined advance limit position by engagement with the stopper plate,
  When the car-side door is fully closed, the car stopper is detached from the stopper plate. On the other hand, when the car-side door is opened, the car stopper is pressed by the stopper rod during the door-opening operation. An elevator door-opening travel prevention device characterized in that, after engaging with a plate, the car reaches the advanced limit position, and thereafter the car-side door is further opened relative to the stopper plate while moving relative to the stopper plate. An elevator door opening / closing prevention device for preventing a car from running while the car side doorway formed in the car is opened and closed by a car side door that moves in the left-right direction. In
  A car stopper that moves forward to the hoistway peripheral wall side within the range up to a predetermined advance limit position in conjunction with the opening operation of the car side door is provided on the car and engaged with the car stop that has advanced to prevent travel. Fixing the stopper plate to the hoistway peripheral wall,
  The car stopper is supported by the car housing via a pair of link members so as to constitute a parallel link mechanism, and is always urged in the door closing direction of the car door by its own weight,
  The car stopper has a guide surface inclined with respect to the door opening / closing direction of the car side door, and the car door abuts the guide surface during the door opening operation to cam the car stopper upward. An operating body to be driven is provided,
  While the car stopper is in the lowered position when the car side door is fully closed, the car stopper is detached from the stopper plate, while the car side door is opened during the door opening operation. When the car stopper is pushed up by the operation body, the car stopper advances and engages with the stopper plate. After that, the operation body moves along the lower surface of the car stopper so that the car-side door moves relative to the car stopper. An elevator door-opening travel prevention device, wherein the door-opening operation is further performed while moving.

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