JP2011111283A - Confinement rescue method of elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To minimize the number of times of attaching/detaching of a rope holding means 40 to/from the main rope 6, in a confinement rescue work. <P>SOLUTION: A pulley 42 is mounted on a hook 7b of a hoisting machine 7, the main rope 6 is held between a driving roller and a driven roller, a driving rope 80 is engaged with a driving pulley, one end of a wire-like body 41 is connected to the rope holding means 40, and the rope holding means 40 is raised by operating the driving rope 80. Then, the rope holding means 40 is lowered, the main rope 6 is held and fixed through a wedge, the wire-like body 41 connected to the rope holding means 40 is wound around the pulley 42, and the other end 41b is drawn to a landing 30a. By pulling the other end 41b of the wire-like body 41, while opening the brake of the hoisting machine 7 by a brake opening device 13, the main rope 6 is moved via the rope holding means 40 to move a car 4 up to a landing 30c. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention is a machine room-less elevator in which the hoisting machine is disposed within the elevator, and when the car stops between the floors, the hoisting machine brake device is opened by the brake releasing means, The present invention relates to an elevator confinement and rescue method in which a car is moved to a position where it can be rescued.

  In this type of conventional elevator confinement and rescue method, in the rescue operation, a rope gripping means is attached to the main rope constituting the 2: 1 roping, a rope is connected to the rope gripping means, and a pulley is installed in the hoistway. By pulling out the rope connected to the rope gripping means from the open part of the landing door through the pulley to the outside of the hoistway and pulling the rope while releasing the hoisting machine brake by the brake releasing means A method is known in which a main rope is lowered to move a car to a position where it can be rescued, and a passenger trapped in the car is rescued (see Patent Document 1).

JP 2003-201074 A

  In the prior art described above, the grip fixing position of the rope gripping means for gripping the main rope is the position where the operator's hand can reach. Further, because of 2: 1 roping, the moving distance of the car is halved with respect to the moving amount of the main rope. Along with these, the operator has to repeatedly attach and detach the rope gripping means to and from the main rope in order to move the car to a position where it can be rescued. Therefore, in the prior art, much labor and time are required for the confinement rescue operation, and it is difficult to expect improvement in workability of the confinement rescue operation.

  The present invention has been made from the above-described prior art, and an object of the present invention is to provide an elevator confinement and rescue method that can suppress the number of times the rope gripping means is attached to and detached from the main rope during confinement and rescue operations. is there.

  In order to achieve the above object, a first invention of an elevator confinement and rescue method according to the present invention raises and lowers a passenger car by a main rope driven by a hoist installed in a hoistway having a landing door. In the elevator, when the car stops between the floors, the brake device of the hoisting machine is opened by a brake releasing means to move the car to a position where the car can be rescued, and the inside of the car In an elevator confinement and rescue method for rescuing passengers confined in a vehicle, a mechanism for gripping and fixing the main rope at the time of descending and a mechanism for gripping and fixing the main rope when descending and sandwiching the main rope during confinement and rescue work Rope gripping means comprising a driving roller and a driven roller disposed on the driving roller, and a driving pulley connected to the driving roller, and the driving of the rope gripping means A driving rope for rotating the cable, a rope that can pull the rope gripping means, and a pulley on which the rope is wound, and the pulley is attached to a predetermined place in the hoistway In addition, the main rope is sandwiched between the drive roller and the driven roller of the rope gripping means, the drive rope is engaged with the drive pulley, one end of the cord-like body is connected to the rope gripping means, By operating the drive rope, the rope gripping means is raised along the main rope via the rotation of the drive roller and the driven roller, and then the rope gripping means is lowered by the rope gripping means by the rope gripping means. A main rope is held and fixed, and a rope connected to the rope holding means is hung around the pulley, and the other end of the rope is moved to a position near the landing door. Pulling out the other end of the cord-like body from the open part of the landing door while releasing the brake device of the hoisting machine by the brake releasing means, and through the rope gripping means The main rope is moved to move the car to a position where it can be rescued.

  In order to achieve the above object, the second invention of the elevator confinement and rescue method according to the present invention provides a main rope driven by a hoisting machine installed in a hoistway having a landing door. In the elevator to be lifted and lowered, when the car stops between the floors, the brake device of the hoisting machine is opened by a brake releasing means, and the car is moved to a position where it can be rescued. In an elevator confinement and rescue method that rescues passengers confined in a car, a mechanism for gripping and fixing the main rope at the time of descending and moving and moving along the main rope at the time of descending and Rope gripping means provided with a driving roller and a driven roller arranged so as to be sandwiched, and a driving pulley connected to the driving roller, and in front of the rope gripping means A drive rope for rotating the drive pulley, a rope that can pull the rope gripping means, and a first pulley and a second pulley on which the rope is wound are prepared, and a predetermined rope in the hoistway is prepared. The first pulley is attached to a location, the second pulley is attached to the rope gripping means, the main rope is sandwiched between the drive roller and the driven roller of the rope gripping means, and the drive rope is attached to the drive pulley. Attach one end of the cord-like body to a predetermined member in the hoistway, hang the cord-like body around the second pulley and the first pulley, and operate the drive rope to operate the drive roller The rope gripping means is lifted along the main rope via the rotation of the driven roller, and then the rope gripping means is lowered by the rope gripping means. The main rope is held and fixed, the other end of the cord-like body is pulled out to a position near the landing door, and the landing door is opened while the brake device of the hoisting machine is opened by the brake release means. By pulling the other end of the cord-like body from the portion, the main rope is moved via the rope gripping means to move the car to a position where it can be rescued.

  In order to achieve the above object, the third invention of the elevator confinement and rescue method according to the present invention provides a main rope driven by a hoisting machine installed in a hoistway having a landing door. In the elevator to be lifted and lowered, when the car stops between the floors, the brake device of the hoisting machine is opened by a brake releasing means, and the car is moved to a position where it can be rescued. In an elevator confinement / rescue method for rescuing passengers confined in a car, in the confinement rescue operation, the main rope is disposed on one side of the main rope wound on the hoisting machine. A mechanism that can move along one side portion of the main rope when ascending, and a mechanism that grips and fixes the one side portion of the main rope when descending so as to sandwich the one side portion of the main rope A first rope gripping means having a driving roller and a driven roller, and a driving pulley connected to the driving roller; and a main rope positioned on the other side of the main rope wound around the hoisting machine. A second rope gripping means for gripping and fixing the other side of the main rope; a drive rope for rotating the drive pulley of the first rope gripping means; and a pulling of the first rope gripping means. A possible cable-shaped body and a first pulley and a second pulley on which the cable-shaped body is wound are prepared, and the other side portion of the main rope is gripped and fixed by the second rope gripping means. The first pulley is attached at a predetermined location, the second pulley is attached to the first rope gripping means, and the main rope is sandwiched between the driving roller and the driven roller of the rope gripping means. The drive rope is engaged with the drive pulley, and one end of the cord-like body is attached to a predetermined member in the hoistway, the cord-like body is hung around the second pulley and the first pulley, By operating the driving rope, the first rope gripping means is raised along the one side portion of the main rope through the rotation of the driving roller and the driven roller, and then the first rope gripping means is lowered. The first rope gripping means grips and fixes one side portion of the main rope, pulls the other end of the cord-like body to a position near the landing door, and the brake releasing means releases the brake device of the hoisting machine. While opening, pulling the other end of the cord-like body from the open part of the landing door moves the one side part of the main rope through the first rope gripping means. Then, the car is moved to a position where it can be rescued.

  In the first to third inventions configured as described above, when the main rope is gripped by the rope gripping means during the confinement rescue operation, the driving pulley, the driving roller, and the driven roller provided on the rope gripping means by operating the driving rope This is equivalent to several times the distance to move the grip holding position of the rope gripping means relative to the main rope to a sufficiently high position, for example, a position where the stopped car can be rescued. It can be in the height position. Thereby, the frequency | count of attachment / detachment of the rope holding means with respect to a main rope can be restrained few.

  In the invention according to any one of the first to third inventions, the mechanism that is movable along the main rope at the time of ascent and that holds and fixes the main rope at the time of the descent includes the main rope. It includes a wedge that can be pressed. The present invention configured as described above releases the pressure on the main rope by the wedge and once raises the rope gripping means, and then when the rope gripping means is lowered, the main rope is pressed by the wedge, The main rope can be gripped and fixed by the rope gripping means. In addition, the mechanism having the wedge can be a simple mechanism and is highly practical.

  The first to third inventions according to the present invention are arranged so as to sandwich a main rope, a mechanism that can move along the main rope when ascending, and grip and fix the main rope when descending, during the confinement rescue operation A rope gripping means having a driving roller, a driven roller, and a driving pulley connected to the driving roller, and a driving rope for rotating the driving pulley of the rope gripping means are prepared, and the driving rope is operated to be provided on the rope gripping means. The rope gripping means is lifted along the main rope through the drive pulley, the drive roller, and the driven roller, and then the rope gripping means is lowered to grip and fix the main rope by the rope gripping means. Pull out the other end of the cord-like body wrapped around to the position near the landing door, and release the brake device of the hoist by the brake release means. Therefore, the other end of the cord-like body is pulled from the open part of the landing door, and the main rope is moved through the rope gripping means to move the car to a position where it can be rescued. The grip fixing position of the rope gripping means with respect to can be set to a sufficiently high position. Therefore, during the confinement rescue operation, the number of times of attaching and detaching the rope gripping means with respect to the main rope can be reduced, and labor and time can be reduced as compared with the prior art, and the workability of the confinement rescue operation can be improved as compared with the conventional one. . Further, since the rope gripping means is raised along the main rope by the operation of the drive rope, the rope gripping means can be easily lifted to a height position where the main rope is gripped and fixed. Contributes to improved workability.

It is a figure explaining 1st Embodiment of the confinement rescue method of the elevator which concerns on this invention. It is a figure which shows the rope holding means used for 1st Embodiment of this invention, (a) A figure is a perspective view, (b) A figure is a side view. FIGS. 3A and 3B are diagrams for explaining the operation of the rope gripping means shown in FIG. 2, in which FIG. 2A is a diagram illustrating the operation of the rope gripping means when ascending, and FIG. . It is a figure explaining 2nd Embodiment of the confinement rescue method of the elevator which concerns on this invention. It is a figure explaining 3rd Embodiment of the confinement rescue method of the elevator which concerns on this invention. It is a perspective view which shows the 2nd rope holding means used for 3rd Embodiment shown in FIG.

  Embodiments of an elevator confinement and rescue method according to the present invention will be described below with reference to the drawings.

  FIG. 1 is a diagram for explaining a first embodiment of an elevator confinement and rescue method according to the present invention, FIG. 2 is a diagram showing rope gripping means used in the first embodiment of the present invention, and FIG. FIGS. 3A and 3B are side views, FIG. 3 is a view for explaining the operation of the rope gripping means shown in FIG. 2, FIG. 3A is a view showing the operation of the rope gripping means when ascending, and FIG. It is a figure which shows operation | movement of the rope holding means at the time.

  The elevator to which the first embodiment of the confinement and rescue method according to the present invention is applied is a machine room-less elevator, and landing doors 31a, 31b, and 30c are provided on landings 30a, 30b, and 30c on each floor facing the hoistway 1, respectively. 31c. In the hoistway 1, there is provided a guide rail 2 that guides the car 4 and is erected over the entire stroke. Further, a hoisting machine 7 around which the main rope 6 is wound is installed at the bottom 1a of the hoistway 1. In the hoistway 1, a counterweight 5 that moves up and down relative to the car 4 and a control panel 9 that controls the elevator are arranged.

  The main rope 6 described above is supported at both ends by rope end support portions 6a and 6b located near the top of the hoistway 1 to form 2: 1 roping. The main rope 6 is wound around a car lower pulley 4 a, turning pulleys 8 a and 8 b provided on the pulley beam 8, the hoisting machine 7 and the counterweight 5 described above.

  The hoisting machine 7 is provided with a brake device 7 a for stopping the car 4, and the hoisting machine 7 is stopped and held by the operation of the brake device 7 a, whereby the car 4 is stopped and held via the main rope 6. The The brake device 7 a is connected to the control panel 9 by the wiring 10, and the operation is controlled by the control panel 9. A wiring 11 is laid from the control panel 9 to the lowest floor hall 30a, and this wiring 11 is connected to a connector 12 provided on the hall 30a. A brake release means, that is, a brake release device 13 can be connected to the connector 12.

  The brake release device 13 opens the brake device 7a of the hoisting machine 7 with the power of a battery (not shown) in the control panel 9 by connecting and operating the connector 12 when the elevator stops due to a power failure or the like. The car 4 is raised or lowered by the load difference between the car 4 and the weight 5.

  As shown in FIG. 2A, for example, the rope gripping means 40 prepared when carrying out the confinement and rescue method according to the first embodiment is configured such that one side of the gripping portions 40a and 40b sandwiching the main rope 6 is hinged. And the other side is tightened with a bolt 40d. Support metal fittings 40j and 40k are fixed to both sides of the grip portion 40a, and these support metal fittings 40j and 40k rotatably support a driving roller 40i having a groove 40i1 into which the main rope 6 is inserted. . A driving pulley 401 is integrally provided on one side end surface of the driving roller 40i. A support member 40f that forms a U-shaped frame is fixed to the gripping portion 40b. The support member 40f rotates with the rotation of the drive roller 40i, and has a groove 40h1 into which the main rope 6 is inserted. The driven roller 40h is rotatably supported. That is, the main rope 6 is sandwiched between the driving roller 40i and the driven roller 40h. Thus, when the driving roller 40i rotates in a state where the main rope 6 is sandwiched between the driving roller 40i and the driven roller 40h, the frictional force between the driving roller 40i and the driven roller 40h and the main rope 6 The rope gripping means 40 is raised or lowered.

  Inside the grip portion 40b provided in the rope gripping means 40, the rope gripping means 40 can move along the main rope 6 without pressing the main rope 6 when the rope gripping means 40 is lifted, and presses the main rope 6 when the rope gripping means 40 is lowered. And a mechanism including a wedge 40e, for example, is provided. Note that the support member 40f described above also serves as a fall prevention unit that prevents the wedge 40e from dropping.

  Further, a drive rope 80 used when the rope gripping means 40 is raised and lowered is provided, and this drive rope 80 can be engaged with a drive pulley 40l.

  As shown in FIG. 3A, when one side of the drive rope 80 (the side close to the wedge 40e in FIG. 3) is pulled downward, the drive pulley 40l rotates, and accordingly, the drive roller 40i. And the driven roller 40h rotates, and the roller gripping means 40 rises along the main rope 6 due to the frictional force between the driving roller 40i and the driven roller 40h and the main rope 6, and the other side of the driving rope 80 ( In the same figure, the roller gripping means 40 is lowered by pulling downward the side far from the wedge 40e. Further, when the rope gripping means 40 descends, the main rope 6 is gripped and fixed by the wedge 40e. That is, as shown in FIG. 2, the locking tool 42 attached to one end 41a of the cord-like body 41 is connected to the fixing portion 40g of the rope gripping means 40, and is pushed up as shown in FIG. 3 (b). When the cord-like body 41 is pulled downward with the upper end of the means 81 pressed against the wedge 40e, the wedge 40e presses the main rope 6 and the rope gripping means 40 grips and fixes the main rope 6, and this rope gripping means The main rope 6 can be lowered via 40.

  As shown in FIG. 1, a pulley 42 is attached to a predetermined location inside the hoistway 1, for example, a hook 7b position provided on the hoisting machine 7 via a shackle 43 connected to the hook 7b. . The above-mentioned cord-like body 41 is hung around the pulley 42.

  As shown in FIG. 1, the car 4 stops in the hoistway 1 located between the floors, for example, between the halls 30b and 30c, and the load of the car 4 and the load of the weight 5 are balanced. When the rescue operation of the passenger trapped in the car 4 is performed, the rope gripping means 40, the drive rope 80, the push-up means 81, the cord 41, and the pulley 42 described above are performed. And are prepared.

  The worker first opens the landing door 31a of the landing 30a on the lowest floor, enters the bottom 1a of the hoistway 1, and reaches the operator's hand at the portion of the main rope 6 positioned above the hoisting machine 7, for example. The rope gripping means 40 is attached to the position. That is, the rope gripping means 40 is attached to the main rope 6 so that the main rope 6 is sandwiched between the driving roller 40i and the driven roller 40h of the gripping portion 40a. At this time, for example, as shown in FIG. 1, the rope gripping means 40 is attached to one side of the main rope that is the side facing the car 4 in the main rope 6 wound around the hoisting machine 7.

  A pulley 42 is attached to the upper part of the hoisting machine 7, and one end 41a of the rope 41 is connected to the rope gripping means 40, and the drive rope 80 is engaged with the drive pulley 40l. Here, as shown in FIG. 3A, when one side of the drive rope 80 (side closer to the wedge 40e) is pulled downward, the drive pulley 40l rotates, and the drive roller 40i and the driven roller 40h rotate. Then, the rope gripping means 40 rises along the main rope 6 by the frictional force between the main rope 6 and the driving roller 40i and the driven roller 40h. At this time, the rope gripping means 40 is raised to a position where the passenger 4 in which the passenger is confined can be rescued, for example, several times the distance required to move the passenger car 4 to the landing 30c, for example, twice or more.

  With the rope gripping means 40 raised to a predetermined position, as shown in FIG. 3B, the wedge 40e is supported at the upper end of the push-up means 80, and the cord-like body 41 connected to the rope gripping means 40 is moved downward. When pulled, the rope gripping means 40 grips and fixes the main rope 6 due to the wedge effect.

  Then, as shown in FIG. 1, a cord 41 connected to the rope gripping means 40 is hung around a pulley 42, and the other end 41b of the cord 41 is positioned near the landing door 31a on the lowest floor, for example, a landing 30a. Pull out until. In this state, the brake release device 13 is connected to the connector 12 provided on the landing 30a.

  At the landing 30a, the operator grasps the rope by pulling the other end 41b of the cable-like body 41 from the open portion of the landing door 31a while releasing the brake device 7a of the hoisting machine 7 by the brake releasing device 13. The main rope 6 can be moved via the means 40 and the car 4 can be raised to a landing 30c where passengers in the car 4 can be rescued. Thus, after raising the passenger car 4 to the landing 30c, the passenger confined in the passenger car 4 can be rescued by opening the landing door 31c.

  In the first embodiment in which the passenger trapped in the car 4 is rescued in this way, the load of the car 4 and the load of the counterweight 5 are in balance as described above. However, the brake device 7a can be released from the outside of the hoistway 1 by the brake releasing device 13, and the car 4 can be moved by pulling the main rope 6 from the outside of the hoistway 1 with the cable-like body 41. Passengers in the car 4 can be rescued. That is, when moving the car 4, the operator can move the car 4 outside the hoistway 1 without entering the hoistway 1, and can perform this confinement rescue operation efficiently and safely.

  In the above description, the rope gripping means 40 is attached to one side of the main rope, which is the side facing the car 4, but the rope gripping means 40 is attached to the other side of the main rope, which is the side facing the counterweight 5. If it attaches, pulling the cord-like body 41, lowering the car 4 as the other side of the main rope is lowered, moving the car 4 to the landing 30b, and opening the landing door 31b of the landing 30b The passengers trapped in the car 4 can be rescued.

  According to the first embodiment for rescuing a passenger confined in the car 4 as described above, when the main rope 6 is gripped by the rope gripping means 40 during the rescue operation as described above, the drive rope The rope gripping means 40 is lifted along the main rope 6 through the rotation of the driving pulley 40l, the driving roller 40i and the driven roller 40h provided on the rope gripping means 40 by operating 80, and the rope gripping on the main rope 6 is performed. The gripping position of the means 40 can be set to a sufficiently high position, that is, a height position corresponding to several times the distance by which the car 4 is moved to a rescueable position. Therefore, during the confinement rescue operation, the number of times the rope gripping means 40 can be attached to and detached from the main rope 6 can be reduced, and labor and time can be reduced, and the workability of the confinement rescue operation can be improved.

  Further, since the rope gripping means 40 is raised along the main rope 6 by the operation of the drive rope 80, the rope gripping means 40 can be easily lifted to the grip fixing position with respect to the main rope 6, and the confinement rescue is performed. Contributes to improved work efficiency.

  Further, in the present embodiment, the rope gripping means 40 is provided, and is movable along the main rope 6 when ascending, and a mechanism for gripping and fixing the main rope 6 when descending includes the wedge 40e. Is easy to configure and practical.

  FIG. 4 is a diagram for explaining a second embodiment of the elevator confinement and rescue method according to the present invention.

  The second embodiment shown in FIG. 4 is also applied to, for example, the same elevator as the elevator shown in FIG. 1 to which the first embodiment described above is applied. A rope gripping means 40 having a mechanism for gripping the main rope 6 at the time of lowering, a drive rope 80, and a push-up means 81 are prepared. The rope gripping means 40, the drive rope 80, and the push-up means 80 have, for example, the same configuration as that in the first embodiment described above. Also, two pulleys are prepared: a rope 51 that can pull the rope gripping means 40, and a first pulley 52 and a second pulley 54 around which the rope 51 is wound.

  During the confinement rescue operation, the first pulley 52 is attached to a predetermined location in the hoistway 1, for example, the hook 7 b of the hoisting machine 7 via the shackle 53, and the second pulley 54 is attached to the rope gripping means 40. For example, in this state, the main rope 6 is sandwiched between the driving roller 40i and the driven roller 40h of the rope gripping means 40, and the driving rope 80 is engaged with the driving pulley 40l. Further, one end of the cord-like body 51 is attached to a predetermined member in the hoistway 1, for example, the hook 7b of the hoisting machine 7, and the cord-like body 51 is hung around the second pulley 54 and the first pulley 52.

  Here, in the same manner as in the first embodiment described above, the rope gripping means 40 attached to the main rope 6 is moved along the main rope 6 by operating the drive rope 80, for example, the stopped car 4 is put on the landing 30c. This is achieved by lifting the rope gripping means 40 by pulling the cord-like body 41 downward while the wedge 40e is supported by the push-up means 81 and the rope gripping means 40 is lowered. The main rope 6 is held and fixed by the rope holding means 40. Thereafter, the other end 51b of the cord-like body 51 is pulled out to a position near the landing door 31a on the lowest floor, for example, the landing 30a. In this state, while pulling the brake device 7a of the hoisting machine 7 with the brake release device 13, the other end 51b of the cable-like body 51 is pulled from the open portion of the landing door 31a, thereby allowing the rope gripping means 40 to pass through. The main rope 6 is moved to raise the car 4 to a position where it can be rescued, that is, to the nearest landing 30c. After moving the car 4 to the landing 30c in this way, the passengers trapped in the car 4 can be rescued by opening the landing door 31c.

  Also in the second embodiment configured as described above, the rope gripping means is operated through the rotation of the drive pulley 40l, the drive roller 40i, and the driven roller 40h provided in the rope gripping means 40 by operating the drive rope 80 during the confinement rescue operation. Since the main rope 6 is gripped and fixed by raising the position 40 to a position several times the moving distance of the car 4, the number of times the rope gripping means 40 is attached to and detached from the main rope 6 during the confinement rescue operation is reduced. Therefore, it is possible to obtain the same effects as those of the first embodiment described above. Further, according to the second embodiment, since the second pulley 54 can be a moving pulley, the pulling force on the cord-like body 51 can be halved compared to the confinement rescue operation according to the first embodiment. The confinement rescue operation can be easily performed.

  FIG. 5 is a view for explaining a third embodiment of the elevator confinement and rescue method according to the present invention, and FIG. 6 is a perspective view showing a second rope gripping means used in the third embodiment shown in FIG.

  The third embodiment shown in FIG. 5 is also applied to, for example, the same elevator as the elevator shown in FIG. 1 to which the above-described first embodiment is applied. As in the third embodiment, in the confinement rescue operation, The main rope is positioned on one side of the main rope 6 wound around the hoisting machine 7, for example, on one side of the main rope facing the car 4, and on the one side of the main rope when ascending The first rope gripping means, which is movable along the portion and has a mechanism for gripping one side of the main rope when lowered, that is, the rope gripping means 40, the drive rope 80, and the rope gripping means 40 are connected to the main rope 6. A push-up means 81 that pushes up along is prepared. The rope gripping means 40, the drive rope 80, and the push-up means 81 have the same configuration as that in the first embodiment described above, for example. Also, two pulleys are prepared: a rope 71 that can pull the rope gripping means 40, and a first pulley 62 and a second pulley 64 around which the rope 71 is wound. Further, the other side of the main rope 6 that is wound around the hoisting machine 7 is disposed on the other side of the main rope that is located on the other side of the main rope 6, for example, on the other side of the main rope that faces the counterweight 5. Second rope gripping means 90 for gripping and fixing the portion is also prepared.

  The second rope gripping means 90 grips the main rope 6 by connecting one side of the gripping portions 90a and 90b sandwiching the main rope 6 with a hinge 90c and tightening the other side with a bolt 90d as shown in FIG. It has a configuration. As will be described later, the grip 90 includes a fixing portion 90g to which the first pulley 62 can be attached.

  At the time of confinement rescue operation, as shown in FIG. 5, the second rope gripping means 90 grips the above-mentioned main rope other side portion. The first pulley 62 is attached to a predetermined location in the hoistway 1, for example, the fixing portion 90 g of the second rope gripping means 90, and the second pulley 64 is attached to the fixing portion 40 g of the rope gripping means 40. For example, in this state, one side of the main rope, which is the side facing the car 4, is sandwiched between the driving roller 40i and the driven roller 40h of the rope gripping means 40, and the driving rope 80 is engaged with the driving pulley 40l. Further, one end 71a of the cord-like body 71 is attached to a predetermined member in the hoistway 1, for example, a fixing portion 90g of the second rope gripping means 90, and this cord-like body 71 is hung around the second pulley 64 and the first pulley 62. The cord 71 is again hung around the second pulley 64.

  Here, the rope gripping means 40 attached to the one side portion of the main rope is moved along the one side portion of the main rope, for example, by the operation of the driving rope 80, for example, to move the stopped car 4 to the landing 30c. The rope gripping means 40 is lifted to a position several times higher than the distance, and then the rope gripping means 40 is lowered. Thereafter, the other end 51b of the cord-like body 51 is pulled out to a position near the landing door 31a on the lowest floor, for example, the landing 30a. In this state, while pulling the brake device 7a of the hoisting machine 7 with the brake release device 13, the other end 71b of the cord-like body 71 is pulled from the open portion of the landing door 31a, thereby the rope gripping means 40 is interposed. Then, the one side portion of the main rope is moved to raise the car 4 to a position where it can be rescued, that is, the nearest landing 30c. After moving to the landing 30c in this manner, the passengers trapped in the car 4 can be rescued by opening the landing door 31c.

  In the third embodiment configured as described above, the rope gripping means is also operated through the rotation of the drive pulley 40l, the drive roller 40i, and the driven roller 40h provided in the rope gripping means 40 by operating the drive rope 80 during the confinement rescue operation. Since the main rope 6 is gripped and fixed by raising the position 40 to a position several times the moving distance of the car 4, the number of times of attaching and detaching the rope gripping means 40 to the main rope 6 is reduced. Thus, the same effects as those of the first embodiment described above can be obtained. Moreover, according to this 3rd Embodiment, since the 1st pulley 62 and the 2nd pulley 64 can be made into a moving pulley, compared with the confinement rescue work which concerns on 1st Embodiment, the pulling force with respect to the cord-like body 71 Can be reduced to 1/4, and the confinement rescue operation can be easily performed.

  In the third embodiment, in addition to the first pulley 62 and the second pulley 64, if the number of pulleys around which the cord-like body 71 is wound is further increased, the pulling force on the cord-like body 71 is further reduced. I'll do it.

  In the first and second embodiments, the pulley 42, the first pulley 52, or the one end 51a of the cord-like body 51 is attached to the hook 7b of the hoisting machine 7 during the confinement rescue operation. However, the pulley 42, the first pulley 52, or one end 51a of the cable-like body 51 may be attached to a fixed object in the hoistway 1, such as the rail bracket 2 or the pit base. Even if it attaches in this way, the effect equivalent to the said 1st, 2nd embodiment is acquired.

  Moreover, when pulling each other end 41b, 51b, 71b of each of the cord-like bodies 41, 51, 71, the landing door 31a may be fully opened, and the dimension through which the cord-like bodies 41, 51, 71 pass. Only the landing door 31a may be opened.

  1, 4 and 5 to which the first to third embodiments are applied, the brake release device 13 for releasing the brake device 7a of the hoisting machine 7 is an electric brake provided with a battery. Although it is constituted by the release means, the elevator to which the present invention is applied is not limited to the brake release device 13 being such an electrical brake release means. For example, a wire or the like is routed from the brake device 7a, and an end portion of the wire or the like is disposed outside the hoistway 1 or in the vicinity of the landing door and within the reach of the worker. For example, the brake device 7a may be opened by pulling an end portion such as the like.

  In each of the above embodiments, the other ends 41b, 51b, 71b of the cords 41, 51, 71 are pulled out to the landing 30a. However, the landing door is within the reach of the operator. The other ends 41b, 51b, 71b of the cords 41, 51, 71 may be arranged at positions in the hoistway 1 in the vicinity of 31a. Even if it does in this way, at the time of confinement rescue work, an operator can insert the hand into the hoistway 1 from the landing 30a without having to enter the hoistway 1, and can pull each of the cords 41, 51, 71, The same effects as those in the above embodiments can be obtained.

DESCRIPTION OF SYMBOLS 1 Hoistway 4 Passenger car 5 Counterweight 6 Main rope 7 Hoisting machine 7a Brake device 11 Wiring 12 Connector 13 Brake release device (brake release means)
30a-30c landing 31a-31c landing door 40 rope gripping means (first rope gripping means)
40a gripping portion 40b gripping portion 40e wedge 40i driving roller 40h driven roller 40l driving pulley 41 rope-like body 42 pulley 51 rope-like body 52 first pulley 54 second pulley 62 first pulley 64 second pulley 71 rope-like body 80 driving rope 81 Pushing means 90 Second rope gripping means

Claims (4)

In an elevator that lifts and lowers a car with a main rope driven by a hoisting machine installed in a hoistway having a landing door, the hoisting machine brakes when the car stops between floors In an elevator confinement rescue method in which the device is opened by a brake release means, the car is moved to a position where the car can be rescued, and a passenger confined in the car is rescued.
During the confinement rescue operation, a mechanism that can move along the main rope when ascending and grips and fixes the main rope when descending, a driving roller and a driven roller disposed so as to sandwich the main rope, and a driving roller Rope gripping means having a connected drive pulley, a drive rope for rotating the drive pulley of the rope gripping means, a cord that can pull the rope gripping means, and a pulley around which the cord is wound And prepare
The pulley is attached to a predetermined place in the hoistway, the main rope is sandwiched between the driving roller and the driven roller of the rope gripping means, the driving rope is engaged with the driving pulley, and the rope gripping is performed. The rope gripping means is raised along the main rope through rotation of the driving roller and the driven roller by connecting one end of the cord-like body to the means, and operating the driving rope, and subsequently this rope The main rope is gripped and fixed by the rope gripping means by lowering the gripping means, a cord-like body connected to the rope gripping means is hung around the pulley, and the other end of the cord-like body is near the landing door Pull out to the position,
By pulling the other end of the cord-like body from the open part of the landing door while releasing the brake device of the hoisting machine by the brake releasing means, the main rope is pulled through the rope gripping means. An elevator confinement and rescue method, wherein the elevator car is moved and moved to a position where it can be rescued. In an elevator that lifts and lowers a car with a main rope driven by a hoisting machine installed in a hoistway having a landing door, the hoisting machine brakes when the car stops between floors In an elevator confinement rescue method in which the device is opened by a brake release means, the car is moved to a position where the car can be rescued, and a passenger confined in the car is rescued.
During the confinement rescue operation, a mechanism that can move along the main rope when ascending and grips and fixes the main rope when descending, a driving roller and a driven roller disposed so as to sandwich the main rope, and a driving roller Rope gripping means having a connected drive pulley, a drive rope for rotating the drive pulley of the rope gripping means, a cord-like body capable of pulling the rope-gripping means, Prepare 1 pulley and 2nd pulley,
The first pulley is attached to a predetermined place in the hoistway, the second pulley is attached to the rope gripping means, and the main rope is sandwiched between the driving roller and the driven roller of the rope gripping means, The drive rope is engaged with the drive pulley, one end of the cord-like body is attached to a predetermined member in the hoistway, the cord-like body is hung around the second pulley and the first pulley, and the drive rope is By operating, the rope gripping means is raised along the main rope through the rotation of the driving roller and the driven roller, and then the rope gripping means is lowered to lower the main rope by the rope gripping means. Holding and fixing, pulling out the other end of the cord-like body to a position near the landing door,
By pulling the other end of the cord-like body from the open part of the landing door while releasing the brake device of the hoisting machine by the brake releasing means, the main rope is pulled through the rope gripping means. An elevator confinement and rescue method, wherein the elevator car is moved and moved to a position where it can be rescued. In an elevator that lifts and lowers a car with a main rope driven by a hoisting machine installed in a hoistway having a landing door, the hoisting machine brakes when the car stops between floors In an elevator confinement rescue method in which the device is opened by a brake release means, the car is moved to a position where the car can be rescued, and a passenger confined in the car is rescued.
It is arranged on one side of the main rope located on one side of the main ropes wound around the hoisting machine during the confinement rescue operation, and can move along the one side of the main rope when ascending. A first rope gripping mechanism comprising a mechanism for gripping and fixing the one side portion of the main rope when descending, a driving roller and a driven roller disposed so as to sandwich the one side portion of the main rope, and a driving pulley connected to the driving roller. A second rope gripping means disposed on the other side portion of the main rope positioned on the other side of the main rope wound around the hoisting machine, and gripping and fixing the other side portion of the main rope; A driving rope for rotating the driving pulley of the first rope gripping means; a cord-like body capable of pulling the first rope-gripping means; and a first pulley and a second pulley around which the cord-like body is wound. Preparation ,
The second rope gripping means grips and fixes the other side of the main rope, attaches the first pulley to a predetermined location in the hoistway, attaches the second pulley to the first rope gripping means, and The main rope is sandwiched between the driving roller and the driven roller of the rope gripping means, the driving rope is engaged with the driving pulley, and one end of the cord-like body is attached to a predetermined member in the hoistway. The first rope gripping means is moved to the one side portion of the main rope through the rotation of the driving roller and the driven roller by operating the driving rope by hanging the state body around the second pulley and the first pulley. The first rope gripping means is gripped and fixed by the first rope gripping means by lifting the first rope gripping means and then lowering the first rope gripping means, Pull the other end of the Jo body to a position near the landing door,
By pulling the other end of the cord-like body from the open portion of the landing door while releasing the brake device of the hoisting machine by the brake releasing means, the main rope is pulled via the first rope gripping means. A method for confining and rescuing an elevator, wherein one side of the rope is moved to move the car to a position where it can be rescued. The elevator confinement and rescue method according to any one of claims 1 to 3,
The elevator confinement and rescue method, wherein the mechanism that is movable along the main rope when ascending and grips and fixes the main rope when descending includes a wedge capable of pressing the main rope.

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