JP2018122965A - Swing prevention guide device of elevator governor rope - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator that prevents a swing of the elevator governor rope.SOLUTION: There is provided an elevator comprising a prevention guide device that prevents a swing of a long load positioned in a hoistway, the swing prevention guide device having a cylindrical first swing prevention unit that covers the long load and a support unit for being fixed in the hoistway.SELECTED DRAWING: Figure 2

Description

  The present invention relates to vibration control of an elevator governor rope.

  As an elevator damage during earthquakes or strong winds, especially in elevators for high-rise buildings, the building shakes and the ropes of the elevator shake greatly, touching or catching equipment installed in the hoistway, the elevator Cases leading to breakdowns and outages have been reported in recent earthquakes, and improvements are required.

  Regarding such an event, it is stipulated that protective measures should be provided for devices installed in the hoistway so that long ropes are not caught. On the other hand, in Patent Document 1, as a means for preventing such a catching phenomenon, the bracket installed on the hoistway is connected to the main rope when the main rope has come into the catch prevention portion from the support surface side. It is described that there is an inclined line that promotes the movement of the main rope toward the hook by the restoring force caused by the tension.

Japanese Patent Publication No. 2013-170072

  The above-mentioned measures to prevent catching with the protective wire are effective for the floor around the rail bracket, but how to catch long objects, especially governor rope, and how to generate tension due to earthquakes and strong winds. Depending on the situation, the catch may not be resolved.

  In order to achieve the above object, the present invention is an elevator including a suppression guide device that suppresses a swing of a long object disposed in a hoistway, and the shake suppression guide device is a cylindrical shape that covers the long object. It has the 1st shake suppression part of this, and a support part for fixing in a hoistway, It is characterized by the above-mentioned.

  According to the present invention, the risk of catching can be reduced by suppressing the swing of the governor rope. Problems, configurations, and effects other than those described above will be clarified by the following description of embodiments.

1 is an overall view of an elevator according to an embodiment of the present invention. 1 is a governor rope runout suppression guide device according to a first embodiment of the present invention; 3 is a governor rope runout suppression guide device according to a second embodiment of the present invention.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a governor rope swing suppression guide device and a governor rope swing suppression method in an elevator hoistway according to the present invention will be described below with reference to FIGS.

  FIG. 1 is a plan view simply showing a state in a general hoistway of an elevator. As shown in FIG. 1, a car 3 and a counterweight 4 are disposed in the elevator hoistway.

  The raising and lowering of the car 3 and the counterweight 4 are guided by a corresponding pair of left and right car guide rails (not shown) and a pair of left and right weight guide rails (not shown). Further, the car guide rail and the weight guide rail are fixed to the corresponding rail bracket 40 by using a rail clip (not shown) or the like. The rail bracket 40 is supported by a wall surface, a beam, or a part integrally formed with the hoistway.

  A main rope 5 driven by the hoisting machine 1 is arranged in the hoistway, and the car 3 and the counterweight 4 are connected to each other by the main rope 5. When the main rope 5 is driven by the hoist 1, the car 3 and the counterweight 4 are raised and lowered in the hoistway in directions opposite to each other.

  The car-side governor rope 8 is wound around the governor 6 disposed above the hoistway and the governor tensioner 7 disposed below, and moves up and down at the same speed as the car 3. A part of the governor rope 8 is connected to an emergency stop lifting part 12 (hereinafter abbreviated as a lifting part) provided on the car side. In an emergency, the lifting part 12 operates to grasp the car guide rail to make an emergency stop. It has a structure.

  Similarly, the governor rope 11 on the counterweight side is wound around the governor 9 disposed above in the hoistway and the governor tensioner 10 disposed below, and moves up and down at the same speed as the counterweight 4. A part of the governor rope 11 is connected to an emergency stop lifting portion 13 provided on the counterweight side, and in the event of an emergency, the lifting portion 13 operates to grab the guide rail and to make the counterweight 4 stop emergency. .

  Next, based on FIG. 2, the governor rope run-out suppressing device according to the first embodiment of the present embodiment will be described. The embodiment of the first mode relates to a technique for suppressing the swinging of the governor rope on the pulling portion side, and takes an example of the governor rope on the car side, but the same applies to the governor rope swing suppressing apparatus on the counterweight side.

The shake suppressing device 27 for the governor rope 8 includes a cylindrical first shake suppressing portion 15 that covers the governor rope 8 on the pulling portion 12 side, and a support portion 18 a that is fixed to the rail bracket 40. As a result, when the governor rope 8 swings due to an earthquake, strong wind, or the like, it strikes against the inner surface of the swing restraining portion 15, thereby suppressing the swinging. In a part of the cross section of the first shake suppressing portion 15, an opening portion 16 through which the pulling portion 12 passes is provided in the entire longitudinal direction thereof and in parallel with the governor rope 8. The width of the opening portion 16 is In order to avoid contact even when the looseness of the pulling portion 12 is taken into consideration, the size of the pulling portion 12 is the width + α. Here, the shake suppressing device 27 is manufactured by a molding die using a resin such as a casting or a reinforced plastic. Although at least one is disposed in the hoistway, a plurality of governor ropes may be disposed if it is desired to reduce the deflection amount of the governor rope over the entire elevator stroke.

  Note that, in some cases, the governor rope 8 may be detached from the opening 16 provided in the shake suppressing portion 15 due to the governor rope 8 swinging irregularly. In order to cope with this, a barb 19 may be provided in the opening 16 as shown in the uppermost part of FIG. Thereby, when the governor rope 8 moves along the inner surface of the vibration suppressing portion 15, the governor rope 8 can be moved away from the opening portion 16 by the barb 19 provided in front of the opening portion 16.

  However, just because the barb 19 is provided, it cannot be said that the governor rope 18 can be completely prevented from coming off. Therefore, on the upper surface and the lower surface of the support portion 18a, when the governor rope 8 is detached from the cylindrical shake restraining portion 15, the circle that promotes the return to the shake restraining portion 15 by the tension of the governor rope 8 is promoted. Arc guides 14a and 15a are provided.

  In addition, with respect to the governor rope entrance 60 of the first runout suppressing portion 15, the angle of the governor rope 8 and the arcuate guides 14a, 15a of the support portion is set to an acute angle θ of 90 degrees or less, so that the governor rope 8 is , Without any resistance, can be smoothly guided into the restraining portion 15 through the governor rope entrance 60. Further, guide slopes 14 c and 15 c are provided on the opposite side through the arcuate guides 14 a and 15 a and the opening 16. The guide slope is formed obliquely toward the center of the opening 16 in the up-down direction with respect to the opening 16. By the guide slopes 14c and 15c, when the governor rope 8 is disengaged from the cylindrical shake restraining portion 15 toward the 14c and 15c side, the return to the shake restraining portion 15 is promoted by the tension of the governor rope 8. Thus, according to the governor rope shake suppression guide device of the present embodiment, it is possible to reduce the risk of catching by suppressing the swing of the governor rope, and even if the governor rope comes off the guide portion, it does not have to be done manually. It can be restored naturally.

  Next, a second embodiment of the present invention will be described based on FIG. The embodiment of the second mode relates to a technique for suppressing the swing of the governor rope on both the pulling portion side and the counter pulling portion side by an integrated swing suppression guide device. In this embodiment, the cab-side governor rope is taken as an example, but the same applies to the counterweight-side governor rope run-out suppressing device.

  The governor rope shake restraining guide device 28 according to the present embodiment includes a cylindrical first shake restraining portion 25 that covers the governor rope 8a on the pulling portion side and a cylindrical second shake restraining portion 30 that covers the governor rope 8b on the counter pulling portion side. And a support portion 18b for fixing to the rail bracket 40. The first shake suppression unit 25 and the arcuate guides 14b and 15b have the same structure as that of the first embodiment.

  Here, the governor rope 8b on the side opposite to the lifting portion does not need an opening for the purpose of avoiding interference with the lifting portion 12. It is sufficient if there is an opening into which the governor rope can be inserted. In a part of the cross section of the second shake suppressing portion, an opening 36 having a width of the diameter + α of the governor rope 8b is provided at a position slightly shifted in each of the cross sections adjacent in the longitudinal direction in the longitudinal direction. When viewed from the front, it has a spiral opening shape. As a result, when the governor rope 8b is inserted, it can be easily inserted into the second shake restraining portion 30 only by bending it lightly according to the shape of the spiral opening. On the other hand, since the tension is applied to the governor rope 8b during the elevator running, the structure does not come off from the second shake suppression unit 30.

  As described above, according to the embodiment of the present invention, it is possible to reduce the risk of catching by suppressing the swing of the governor rope due to an earthquake, strong wind, etc. with an inexpensive structure, and the governor rope is detached from the guide portion. However, it is excellent in fail-safeness by restoring naturally without human intervention.

In addition, this invention is not limited to embodiment mentioned above, Various modifications are included.
For example, the above-described embodiment has been described in detail for easy understanding of the present invention, and is not necessarily limited to the one having all the configurations described. A part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. Moreover, it is possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.

  Moreover, although the long thing of the elevator which concerns on this invention is made into the governor rope, it is applicable also to long things, such as a main rope, a compensation rope, and a tail cord.

DESCRIPTION OF SYMBOLS 1 Hoisting machine 2 Pulley 3 Car 4 Counterweight 8 Car side governor rope 11 Counterweight side governor rope 12 Car side raising part 13 Counterweight side raising part 14a, 15a Arc-shaped guide 14c, 15c Guide slope 15 Swing suppression part 16 Opening part 19 Return 27 Swing suppression guide device 40 Rail bracket 50 Fixing bolt

Claims (6)

An elevator including a suppression guide device that suppresses the swing of a long object disposed in a hoistway,
The shake suppression guide device includes:
A cylindrical first shake suppression unit covering a long object;
Having a support for fixing in the hoistway;
An elevator characterized by that. The elevator according to claim 1,
The long object that the touch suppression guide device suppresses shake is a governor rope,
The first shake suppressing portion is provided with an opening for allowing the pulling portion to pass over the entire area in the longitudinal direction.
An elevator characterized by that. The elevator according to claim 2,
The support part is
An elevator comprising an arcuate guide that promotes the return to the deflection suppressing portion by the tension of the governor rope. The elevator according to claim 3,
The elevator characterized by having a barge provided in front of the opening 16 in the run-out suppressing portion. The elevator according to claim 4,
The elevator according to claim 1, wherein an angle between the governor rope and the arcuate guide of the support portion is an acute angle of 90 degrees or less with respect to a governor rope entrance of the first swing suppression portion. The elevator according to any one of claims 1 to 5,
The shake suppression guide device includes a cylindrical first shake suppression unit that covers the governor rope on the pulling portion side, and a cylindrical second shake suppression portion that covers the governor rope on the anti-lifting portion side, and the second shake suppression portion. 6. The opening according to claim 1, wherein a part of the cross-section of the portion is provided with an opening at a position slightly shifted in each of the cross-sections adjacent to each other in the longitudinal direction. Or elevator according to item 1.

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