JP2011098837A - Apparatus for preventing elevator from moving with door opened - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for preventing an elevator from moving with a door opened, which can reliably prevent a car from moving with the door opened. <P>SOLUTION: A stopper rod 18 is mounted on a car side door 6, and a stopper bracket 23 which can engage with the stopper rod 18 is fixedly provided on a guide rail 3. When opening the car side door 6, the stopper rod 18 engages with the stopper bracket 23 while a car side entrance is partially opened during the opening operation, and when closing the car side door 6, the engagement of the stopper rod 18 with the stopper bracket 23 is maintained through halfway in the closing operation, whereby the car 1 is prevented from moving with the car side entrance fully or partially opened. <P>COPYRIGHT: (C)2011,JPO&INPIT

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, the car is provided with a locked member that moves forward to the hoistway peripheral wall side in a range up to a predetermined advance limit position in conjunction with the door-opening operation of the car-side door, The locking member that engages with the locked member that has advanced is fixed to the hoistway peripheral wall, and the locked member is detached from the locking member when the car side doorway is fully closed. During the door opening operation of the side door, the locked member engages with the locking member in the middle of the door opening operation and reaches the advance limit position, and then the car side door moves relative to the locked member. While opening more It is characterized in.

  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 car side doorway is incompletely opened during the door opening operation. Since the locking member and the locking member are engaged, the car is prevented from traveling by the engagement of the locked member and the locking member when the car side doorway is in a fully open state or an incompletely open state. become. In addition, during the door opening operation of the car side door, the locked member reaches the advance limit position during the door opening operation, and then the car side door moves relative to the locked member and further opens the door. Since it operates, it becomes possible to reduce the protruding amount of the locked member toward the hoistway peripheral wall when the car side doorway is fully opened.

  Preferably, as in the invention described in claim 2, it is very easy to attach a locked member to the car-side door so that the locked member moves together with the car-side door that opens and closes the door. With a simple structure, it is possible to reliably prevent the car from opening the door.

  Specifically, as in the invention described in claim 3, between the locked member and the car side door, the locked member is guided relative to the car side door so as to be relatively movable in the left-right direction. The linear motion guide means and the urging means for urging the locked member toward the door opening direction are respectively interposed, while being covered at the advanced limit position engaged with the locking member. Advance control means for controlling further advance operation of the locking member may be provided on the hoistway peripheral wall side.

  In the invention according to claim 3, the advance limit position of the locked member is restricted by the advance restriction means.

  On the other hand, as in the invention described in claim 4, it is also possible to support the locked member on the cage so as to be able to advance and retreat. In this case, the cage body bears a restraining force for preventing the car from opening the door, which is advantageous in terms of strength.

  Specifically, as in the invention described in claim 5, an urging means for urging the locked member in the backward direction is interposed between the locked member and the car housing. An operating body that presses the locking member in the protruding direction is attached to the car-side door, and when the car-side door is opened, the operating body that moves together with the car-side door is pressed to move the locked member. It is good to comprise so that it may engage with a locking member.

  In this case, as in the invention described in claim 6, between the operating body and the car-side door, the linear guide means for guiding the operating body to be movable relative to the car-side door in the left-right direction. And an urging means for urging the operation body toward the door opening direction side, respectively, and further advancement operation of the locked member at the advance limit position engaged with the locking member Advancement restricting means is provided on the side wall of the hoistway, and when the car-side door is opened, the locked member is pressed by the operating body in the middle of the door-opening operation, and the advancement limit position is reached. The movement of the operation body in the door opening direction is restricted by the locked member, and then the car-side door is further moved relative to the operation body to further open the door. The advance limit position of the locked member is restricted by the advance restriction means. And makes it possible to reduce the amount of projection of the hoistway wall side of the locking member in the fully open state of the car-side doorway.

  On the other hand, as in the invention described in claim 7, when the car-side door is opened, the locked member is cam-driven by an operating body provided on the car-side door and moves forward by a predetermined amount. Even if it does, it is possible to make small the protrusion amount of the to-be-latched member at the time of the said car side doorway fully opening.

  In this case, specifically, as in the invention described in claim 8, a guide surface inclined with respect to the door opening / closing direction of the car side door is provided on the locked member, and the door of the car side door is opened. In operation, the locked member may be configured to advance when the operating body and the guide surface are in contact with each other.

  According to the first aspect of the present invention, since the locked member engages with the locking member during the door opening operation of the car side door, the car side doorway is fully open. In the incompletely opened state, the car can be reliably prevented from traveling by the engagement of the locked member and the locking member, and the safety of the elevator is greatly improved. 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 the 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. 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 the 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 (advance control means)
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 (8)

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 locked member that moves forward to the hoistway peripheral wall side in a range up to a predetermined advance limit position in conjunction with the opening operation of the car-side door is provided in the car and engages with the locked member that has advanced. Fixing the locking member to the hoistway peripheral wall,
When the car-side doorway is fully closed, the locked member is detached from the locking member. On the other hand, when the car-side door is opened, the locked member is locked during the door-opening operation. The elevator door opening travel prevention device is characterized in that after reaching the advanced limit position, the car side door is further moved relative to the locked member to further open the door. .   The elevator door opening according to claim 1, wherein a locked member is mounted on the car side door, and the locked member moves together with the car side door that opens and closes the door. Travel prevention device.   Between the locked member and the car side door, linear motion guide means for guiding the locked member relative to the car side door so as to be relatively movable in the left-right direction; and the locked member is opened. Urging means for urging toward the direction side are respectively interposed, while advance restriction means for restricting further advance operation of the locked member at the advance limit position engaged with the locking member is raised and lowered The elevator door-opening travel prevention device according to claim 2, wherein the elevator is provided on a road peripheral wall side.   The elevator door-opening travel prevention device according to claim 1, wherein the locked member is supported by a car housing so as to be capable of advancing and retreating. A biasing means for biasing the locked member in the backward direction is interposed between the locked member and the car housing, while the locking member is moved when the car-side door is opened. The operating body that pushes in the advancing direction is attached to the car side door,
5. The locked member is configured to engage with a locking member by being pressed by the operating body that moves together with the car-side door when the car-side door is opened. The door-opening travel prevention device for an elevator according to 1. Between the operating body and the car-side door, a linear guide means for guiding the operating body to be movable relative to the car-side door in the left-right direction, and the operating body facing the door opening direction side are attached. Energizing means for energizing are provided respectively, while advance restriction means for restricting further advancement operation of the locked member at the advance limit position engaged with the locking member is provided on the hoistway peripheral wall side. And
During the door opening operation of the car side door, the locked member is pressed by the operating body in the middle of the door opening operation and moves to the advance limit position, and the locked member moves the door to the door opening direction. 6. The elevator door-opening travel prevention device according to claim 5, wherein the movement of the elevator is restricted, and thereafter, the car-side door is further opened while moving relative to the operating body. .   The locking member is configured to advance by a predetermined amount by being cam-driven by an operating body provided on the car-side door when the car-side door is opened. The elevator door-opening travel prevention device according to claim 1. The locked member has a guide surface inclined with respect to the door opening / closing direction of the car-side door,
8. The door opening of an elevator according to claim 7, wherein, when the car side door is opened, the locked member moves forward with contact between the operating body and the guide surface. Travel prevention device.

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