JP2008143620A - Speed governor rope steadying device for elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a speed governor rope steadying device for an elevator capable of attaining space saving and energy saving. <P>SOLUTION: The speed governor rope steadying device is provided with preventing device bodies 8a, 8b continuously or intermittently extended between a speed governor 4 and a tension pulley 7 to cover three sides of a speed governor rope 5 while having open parts on the lifting lever side, and a belt 12 moving synchronously with an elevator car 3 to close the open parts of the preventing device bodies 8a, 8b. One end of the belt 12 is connected to the car 3 above the lifting lever, and the other end of the belt 12 is connected to the car 3 below the lifting lever. A top part of a hoistway 1 is provided with a belt return pulley 10, and a lower part of the hoistway 1 is provided with a belt tension pulley 11 to annularly dispose the belt 12. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a governor rope steadying device for an elevator that prevents the governor rope from swinging.

  In general, an elevator is equipped with a governor for emergency stop of the elevator, that is, the car when an abnormality occurs, and this governor has a governor rope that circulates in synchronization with the car. is doing. In order to prevent the governor rope, which is a long body, from swaying due to an earthquake or the like to interfere with and damage to the equipment in the hoistway, a governor rope steadying device is provided (for example, Patent Document 1). reference).

  Here, a conventional elevator governor rope steadying device will be described with reference to FIGS.

  FIG. 3 is a schematic view showing a conventional governor rope steadying device for an elevator, and FIG. 4 is a perspective view of a main part showing a conventional governor rope steadying device for an elevator.

  3 and 4, 30 is a hoistway, 31 is an elevating body that elevates and lowers the hoistway 30, for example, a car, 32 is a governor installed at the upper part of the hoistway 30, and 33 is at the lower part of the hoistway 30. The tensioning wheel of the speed governor 32 to be installed, 34 is a speed governor rope wound around the speed governor 32, the other end is wound around the tensioning wheel 33, and 35 is a lifting lever of an emergency stop device for emergency stopping the car 31. The connecting portion 36 surrounds the governor rope 34 on the lifting lever side from three sides and has an opening on the side through which the lifting lever connecting portion 35 of the emergency stop device passes, and 37 and 38 are substantially U-shaped in cross section. Belts 39 and 40 for closing the open portion of the prevention device main body 36 are provided in the vicinity of the upper and lower ends of the prevention device main body 36, and the belts 37 and 38 are wound and sent out as the car 31 moves up and down. The picking device, 41, Connecting member for connecting the belt 37, 38 on the passenger cage 31, 43 and 44 is a groove for guiding the belt 37.

In the conventional speed governor rope steadying device configured in this way, the belts 37 and 38 are wound and sent out by the winding devices 39 and 40 in accordance with the raising and lowering of the car 31, and the prevention device main body 36. The open part is always closed. That is, the prevention device main body 36 and the belts 37 and 38 surround the four sides of the governor rope 34 on the lifting lever side to prevent the swinging.
JP 9-272673 A (paragraph numbers 0016 to 0018, FIGS. 4 and 5)

  However, in the conventional governor rope steadying device, it is necessary to wind and send the belts 37 and 38 by the winding devices 39 and 40 as the car 31 moves up and down. A relatively large installation space in which the winding devices 39 and 40 are provided near the ends is required. Furthermore, there is a problem that a power source for driving the winding devices 39 and 40 is required, resulting in an increase in energy consumption.

  The present invention has been made from the above-described prior art, and an object of the present invention is to provide an elevator governor rope steadying device that can save space and energy.

  In order to achieve the above object, an invention according to claim 1 of the present invention is a speed governor that detects an abnormal speed of a lifting body, and is stretched between a speed governor and a tension wheel, A lift provided with a lifting lever of a stopping device and a governor rope to which both ends thereof are connected, wherein the governor rope extends continuously or intermittently between the governor and the tensioning wheel. And a governor rope for an elevator provided with a prevention device main body having an open portion on the pulling lever side and a belt that moves in synchronization with the elevating body and closes the open portion of the prevention device main body In the anti-sway device, one end of the belt is connected to the lifting body above the lifting lever, the other end of the belt is connected to the lifting body below the lifting lever, and the top of the hoistway In Provided belt return sheave and a hoistway bottom in the belt tensioning wheel respectively, and the belt is characterized in that arranged annularly.

  The invention according to claim 1 of the present invention configured as described above wraps the belt around the belt return wheel installed at the top of the hoistway and the belt tensioner installed at the lower part of the hoistway, Is connected to the lifting body above the lifting lever, and the other end of the belt is connected to the lifting body below the lifting lever. The belt disposed in an annular manner in this manner moves up and down in synchronization with the lifting and lowering of the lifting body, and closes the opening of the main body of the prevention device to prevent the governor rope from swinging. In this way, the belt arranged in an annular shape is driven by the lifting body to close the open part of the main body of the prevention device, so that a special device or power source for winding and delivering the belt as in the past is used. Therefore, space saving and energy saving can be achieved.

  In the invention according to claim 2 of the present invention, the main body of the prevention device is provided as a pair so as to individually cover the lifting lever side governor rope and the anti-lifting lever side governor rope. It is characterized by closing the open part of each prevention device main body.

  The invention according to claim 2 of the present invention configured as described above covers the lifting lever side governor rope and the anti-lifting lever side governor rope by the pair of prevention device bodies, and each prevention device facing each other. The open part of the main body is closed by a belt arranged in an annular shape. Thus, since the lifting lever side governor rope and the anti-lifting lever side governor rope are respectively covered, the governor rope can be reliably prevented from shaking. Moreover, the prevention device main body can be adapted to each of the lifting lever side governor rope and the anti-lifting lever side governor rope simply by changing the direction, and the opening portion of each prevention device main body is arranged in an annular shape. Since the belt is closed by the belt, the devices can be shared and the number of members can be reduced.

  Furthermore, the invention according to claim 3 of the present invention is characterized in that the belt return wheel and the belt tensioner are arranged in a space surrounded by the speed governor, the tensioner and the governor rope. Yes.

  In the invention according to claim 3 of the present invention configured as described above, the belt return wheel and the belt tensioner around which the belt is wound are arranged in a space surrounded by the speed governor, the tensioner and the speed governor rope. Yes. As a result, the belt, the belt return wheel, and the belt tensioner can be disposed using the space that has conventionally become a dead space, and the opening portion of the prevention device main body can be efficiently closed, thus saving space and improving the efficiency of the device. Can be achieved.

  Furthermore, the invention according to claim 4 of the present invention is characterized in that the belt tensioner is provided with a tension generating means for applying a tension in the vertical direction to the belt.

  In the invention according to claim 4 of the present invention configured as described above, the belt wound between the belt return wheel and the belt tensioner is given a tension in the vertical direction by the tension generating means, whereby the belt is loosened. Therefore, it is possible to prevent the movement from being delayed.

  According to the present invention, since the belt disposed in an annular shape is driven by the elevating body, there is no need for a special device or power source for winding and feeding the belt as in the prior art. Space saving and energy saving can be achieved.

  DESCRIPTION OF EMBODIMENTS Embodiments of a governor rope steadying device for an elevator according to the present invention will be described below with reference to the drawings.

  FIG. 1 is a schematic configuration diagram showing an embodiment of a governor rope steadying device for an elevator, and FIG. 2 is an enlarged view of a main part showing tension generating means provided in the governor rope steadying device of FIG.

  As shown in FIG. 1, the elevator is guided by guide rails 2 laid vertically along the hoistway 1, and the elevator, that is, the car 3 is raised and lowered. The speed governor 4 for detecting the overspeed of the car 3 is provided, for example, in a machine room formed above the hoistway 1, and the speed governor rope 5 is hung on the sheave 4 a of the speed governor 4. The governor rope 5 is connected to the car 3 via a lifting lever connecting portion 6 of the emergency stop device. Furthermore, the governor rope 5 is tensioned by the governor tensioner 7 provided at the bottom of the hoistway 1.

  And as a speed governor rope steadying device of this embodiment, while continuously extending between the speed governor 4 and the speed governor tension wheel 7, covering the three sides of the lifting lever side speed governor rope 5a, The prevention device main body 8a having an opening (not shown) on the lifting lever side, and the prevention device main body 8a are arranged opposite to each other, cover the three sides of the anti-lifting lever side governor rope 5b, and the prevention device main body 8a. Each of the prevention device main bodies 8b having an open portion (not shown) on the side facing each other is attached to the hoistway wall by a plurality of support members 9. Further, in the space surrounded by the governor 4, the governor tensioning wheel 7, and the governor rope 5, the belt return wheel 10 and the prevention device bodies 8a, 8b are located near the upper ends of the prevention device bodies 8a, 8b. A belt tensioning wheel 11 is arranged in the vicinity of the lower end of the belt, a belt 12 is wound around the belt return wheel 10 and the belt tensioning wheel 11, the belt 12 is arranged in an annular shape, and one end of the belt 12 is connected to the upper belt connecting material 13 Is connected to the car 3 above the lifting lever connecting portion 6 and the other end of the belt 12 is connected to the car 3 below the lifting lever connecting portion 6 by the lower belt connecting member 14. Are moved in synchronism with the car 3, and the respective opening portions of the prevention device main bodies 8a, 8b are closed. That is, the governor rope 5 is enclosed from four directions by the prevention device main bodies 8a and 8b having a substantially U-shaped cross section and the belt 12 closing the open portions of the prevention device main bodies 8a and 8b to prevent shaking. The belt return wheel 10 is fixed to the hoistway wall via a belt return wheel support member 15.

  Further, as shown in FIG. 2, the belt tensioner 11 described above is provided with a tension generating means for applying a tension to the belt 12 in the vertical direction. That is, a rod 17 whose upper end is fixed to the supporting member 9 via a nut 16 on the hoistway wall side, and a belt that is attached to the lower end of the rod 17 via a nut 18 and rotatably supports the belt tensioner 11. It has a tension wheel support member 19 and a spring 20 interposed between the support member 9 and the belt tension wheel support member 19. The installation method and effect will be described in detail. When the belt 12 is attached to the belt tensioner 11, the belt 12 is attached in a state in which the nut 16 at the tip of the rod 17 is tightened and the spring 20 is compressed. When the belt is loosened, a force to return the spring 20 is applied to the belt tensioner 11 and the belt 12 is tensioned. As a result, even when the belt 12 elongates over time, tension is continuously applied to the belt 12 in the vertical direction, and the belt 12 is stretched between the belt return wheel 10 and the belt tensioning vehicle 11 without being slackened. Will be.

  In the present embodiment, the belt 8 connected to the car 3 by the upper belt connecting material 13 and the lower belt connecting material 14 is connected to the prevention device main bodies 8a and 8b in synchronization with the raising and lowering of the car 3. Move as guided. For example, when the car 3 is raised, the belt 12 on the prevention device body 8a side moves upward while closing the open portion of the prevention device body 8a, while the belt 12 on the prevention device body side is directed downward. The open part of the prevention device main body 8b is closed while moving. When the car 3 is lowered, the operation is the reverse of the above. In this way, the prevention device main body 8a and the belt 12 surround the lifting lever side governor rope 5a from four directions to prevent shaking, and the prevention device main body 8b and the belt 12 prevent the anti-lifting lever side governor rope 5b from four directions. Prevents shaking of the enclosure.

  According to the present embodiment, the belt 12 arranged in an annular shape is configured to be driven by the car 3, so that a special device and a power source for winding and feeding the belt 12 are required as in the prior art. Therefore, space saving and energy saving can be achieved. Moreover, since the raising lever side governor rope 5a and the anti-lifting lever side governor rope 5b are respectively covered with the prevention device main bodies 8a and 8b, the governor rope 5 can be reliably prevented from shaking. Furthermore, the prevention device main bodies 8a and 8b can correspond to the lifting lever side governor rope 5a and the anti-lifting lever side governor rope 5b only by changing the direction, and each prevention device main body 8a and 8b. Since the opening portion of the belt is closed by the belt 12 arranged in an annular shape, it is possible to share equipment and reduce the number of members. Furthermore, since the belt return wheel 10 and the belt tensioning vehicle 11 are arranged in a space surrounded by the governor 4, the governor tensioning vehicle 7, and the governor rope 5, it is a conventional dead space. The belt 12, the belt return wheel 10 and the belt tensioning vehicle 11 can be arranged by utilizing the space, and the open portions of the prevention device main bodies 8a and 8b can be efficiently closed, so that space saving and equipment efficiency can be reduced. Can be planned. In addition, since tension is applied to the belt 12 in the vertical direction by the tension generating means, it is possible to prevent the belt 12 from slackening and stagnation in its movement.

  In this embodiment, the elevator in which the emergency stop device is attached to the car 3 has been described as an example. However, the present invention can be applied to an elevator in which the emergency stop device is attached to a counterweight that is another lifting body. Needless to say, the present invention can be applied and a similar effect can be obtained.

It is a schematic block diagram which shows one Embodiment of the governor rope steadying apparatus of an elevator. It is a principal part enlarged view which shows the tension generation means with which the governor rope steadying apparatus of FIG. 1 is equipped. It is the schematic which shows the governor rope steadying apparatus of the conventional elevator. It is a principal part perspective view which shows the governor rope steadying apparatus of the conventional elevator.

Explanation of symbols

1 Hoistway 2 Guide rail 3 Car (elevator)
4 Speed governor 5 Speed governor rope 6 Lifting lever connecting portion 7 Speed governor tensioning vehicle 8a Preventing device main body 8b Other preventing device main body 9 Support member 10 Belt return wheel 11 Belt tensioning vehicle 12 Belt 13 Upper belt connecting material 14 Bottom Side belt connecting material 15 Belt return wheel support member 16 Nut (tension generating means)
17 Rod (Tension generating means)
18 Nut (Tension generating means)
19 Belt tensioner support member (tension generating means)
20 Spring (Tension generating means)

Claims (4)

A speed governor that detects abnormal speed of the lifting body, and a speed governor rope that is stretched between the speed governor and the tensioning wheel and that is connected to the lifting lever of the lifting body emergency stop device and both ends thereof A preventive device body that is continuously or intermittently extended between the speed governor and the tensioning wheel, covers three sides of the speed governor rope, and has an opening on the lifting lever side; In the elevator governor rope steady rest device provided with a belt that moves in synchronization with the lifting body and closes the opening of the main body of the prevention device,
One end of the belt is connected to the elevator body above the lifting lever, the other end of the belt is connected to the elevator body below the lifting lever, and a belt return wheel at the top of the hoistway and A speed governor rope steadying device for an elevator, wherein a belt tensioner is provided at a lower part of the hoistway, and the belt is arranged in an annular shape.   The prevention device main body is provided as a pair so as to individually cover the lifting lever side governor rope and the anti-lifting lever side governor rope, and the belt closes an opening portion of each prevention device main body. The elevator governor rope steadying apparatus for elevator according to claim 1.   2. The governor rope runout of the elevator according to claim 1, wherein the belt return wheel and the belt tensioner are arranged in a space surrounded by the governor, the tensioner, and the governor rope. Stop device.   2. The governor rope steadying device for an elevator according to claim 1, further comprising tension generating means for applying tension to the belt tensioner in a vertical direction with respect to the belt.

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