CN101378983B - Elevator device - Google Patents

Elevator device Download PDF

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Publication number
CN101378983B
CN101378983B CN2007800049340A CN200780004934A CN101378983B CN 101378983 B CN101378983 B CN 101378983B CN 2007800049340 A CN2007800049340 A CN 2007800049340A CN 200780004934 A CN200780004934 A CN 200780004934A CN 101378983 B CN101378983 B CN 101378983B
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CN
China
Prior art keywords
rope sheave
sheave
hoist cable
lift
driving rope
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Expired - Fee Related
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CN2007800049340A
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Chinese (zh)
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CN101378983A (en
Inventor
萩谷知文
荒堀升
藤野笃哉
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Hitachi Ltd
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Hitachi Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/0065Roping
    • B66B11/008Roping with hoisting rope or cable operated by frictional engagement with a winding drum or sheave

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)

Abstract

An elevator device where an elevator car (1) and a counterbalance weight (2) suspended by a rope (5) in a hoistway are driven by a hoist (11). The elevator device has a suspension sheave (8) provided at the upper part of the car (1), a rope anchorage (3) provided at the car (1), a suspension sheave (13) provided at the upper part of the counterbalance weight (2), and a rope anchorage (15) provided at the upper part of the counterbalance weight (2). The rope (5) is passed over a drive sheave (10) of the hoist (11) at a pass over angle of 360 DEG or greater.

Description

Lift facility
Technical field
The present invention relates to a kind of lift facility, its lift car and counterbalanced weight move along the guide rail in the hoist trunk.
Background technology
In the prior art, as the method that improves the transmission of power ability, proposed that winch is driven hoist cable winding angle on the rope sheave and be set at lift facility more than 180 °.
For example, open the patent of invention spy of Japan and disclose a kind of hoist cable winding angle that winch is driven on the rope sheave in the clear 61-282285 communique (Fig. 1 etc.) and be set at lift facility more than 360 °.
But, in the disclosed lift facility of above-mentioned patent documentation, do not make any consideration in the size of interior lift facility to including winch.In fact, in above-mentioned patent documentation, hoist cable directly is fixed on lift car and the counterbalanced weight, and what adopt is 1: 1 winding method, so this winch needs big torque.Its result, the integral structure of winch increases, and therefore is not easy to save the space of hoist trunk.
Summary of the invention
The object of the present invention is to provide a kind of lift facility, the structure of equipment such as the winch of this lift facility is little, so can save the space of hoist trunk.
To achieve these goals, in lift facility of the present invention, lift car and counterbalanced weight by the hoist cable suspention in hoist trunk are driven by winch, this lift facility has the suspension pulley that is arranged on described elevator car upper, is arranged on the hoist cable connecting element on the described lift car, the hoist cable connecting element that is arranged on the suspension pulley on described counterbalanced weight top and is arranged on described counterbalanced weight top, and described hoist cable hangs on the driving rope sheave of described winch with the volume of the winding angle more than 360 °.
According to the present invention, a kind of lift facility can be provided, the structure of equipment such as the winch of this lift facility is little, so can save the space of hoist trunk.
Description of drawings
Fig. 1 is the figure of the hoist cable method for winding in the lift facility of expression the present invention the 1st embodiment.
Fig. 2 is the top cross-sectional view of hoist trunk of the lift facility of the present invention the 1st embodiment.
Fig. 3 is the figure of the hoist cable method for winding in the lift facility of expression the present invention the 2nd embodiment.
Fig. 4 is the top cross-sectional view of hoist trunk of the lift facility of the present invention the 2nd embodiment.
Fig. 5 is the figure of the hoist cable method for winding in the lift facility of expression the present invention the 3rd embodiment.
Fig. 6 is the top cross-sectional view of hoist trunk of the lift facility of the present invention the 3rd embodiment.
Fig. 7 is the figure of the hoist cable method for winding in the lift facility of expression the present invention the 4th embodiment.
Fig. 8 is the top cross-sectional view of hoist trunk of the lift facility of the present invention the 4th embodiment.
Fig. 9 is that hoist cable in the lift facility of expression the present invention the 1st embodiment is at the figure that drives the method for winding on the rope sheave.
Figure 10 is that hoist cable in the lift facility of expression the present invention the 2nd embodiment is at the figure that drives the method for winding on the rope sheave.
Figure 11 is that hoist cable in the lift facility of expression the 3rd embodiment of the present invention is at the figure that drives the method for winding on the rope sheave.
Nomenclature
1 lift car
2 counterbalanceds weight
3,15 hoist cable connecting elements
4,8,8a, 13 suspension pulleys
5 hoist cables
6,7 lift car side deflection sheavies
9 the 1st drive rope sheave side deflection sheave
10 drive rope sheave
11 winchs
12 the 2nd drive rope sheave side deflection sheave
14 balance heavy side deflection sheavies
16a, 16b lift car guide rail
17a, 17b counterbalanced weight guide rail
18 drive rope sheave side deflection sheave
The specific embodiment
Below with reference to the accompanying drawings embodiments of the invention are described.
Fig. 1 is the figure of the method for winding of the hoist cable 5 in the lift facility of expression the present invention the 1st embodiment, and Fig. 2 is the top cross-sectional view of hoist trunk of the lift facility of the 1st embodiment.The lift facility of present embodiment is constituted as, and lift car 1 travels up and down with guide rail 16a, 16b along lift car in hoist trunk, and counterbalanced weight 2 travels up and down with guide rail 17a, 17b along counterbalanced weight in hoist trunk.In addition, lift car 1 and counterbalanced weight 2 are suspended in midair by hoist cable 5, and are driven by winch 11.At this,, used axial length greater than the prolate shape winch that drives rope sheave 10 diameters as winch 11.
And, be provided with suspension pulley 8 on the top of lift car 1, be provided with hoist cable connecting element 3 in the bottom of lift car 1, be provided with suspension pulley 4 in the side of lift car 1 bottom.On the other hand, be provided with suspension pulley 13 and hoist cable connecting element 15 on the top of counterbalanced weight 2.
In addition, be provided with the 1st on the top of hoist trunk and drive the driving rope sheave 10 that rope sheave side deflection sheave the 9, the 2nd drives rope sheave side deflection sheave 12 and winch 11.This grade in an imperial examination 1 drives rope sheave side deflection sheave 9 and the 2nd driving rope sheave side deflection sheave 12 and drives rope sheave 10 and is positioned at roughly the same height, and as shown in Figure 2, mutual vertical projection almost parallel.In addition, be provided with 2 lift car side deflection sheavies 6,7 and balance heavy side deflection sheave 14 on the top of hoist trunk.At this, the mutual almost parallel of vertical projection of lift car side deflection sheave 6,7 and counterbalanced weight side deflection sheave 14 and suspension pulley 8,13, and its vertical projection the above-mentioned relatively the 1st drives rope sheave side deflection sheave 9 and the 2nd driving rope sheave side deflection sheave 12 and drives rope sheave 10 approximate vertical.
And winch 11 is configured to, itself and the switching direction almost parallel of elevator lobby door, and be positioned at the vertical projection of lift car 1.In addition, counterbalanced weight 2 is arranged on the back of lift car 1.At this, the back of lift car 1 is meant from the elevator lobby side sees the part that is positioned at lift car 1 rear.
Followingly the method for winding of the hoist cable in the lift facility of present embodiment 5 is described with reference to Fig. 1.The lift facility of present embodiment has adopted basically and has utilized hoist cable connecting element 3,15 and suspension pulley 8,13 to suspend 3: 1 method for winding of lift car 1 and counterbalanced weight 2 in midair.As shown in Figure 1, its concrete method is: an end of hoist cable 5 is fixing by the hoist cable connecting element 3 of described lift car 1 below, and the other end of hoist cable 5 extends to suspension pulley 4 from this hoist cable connecting element 3 to the direction of approximate horizontal, after turning to, extends this suspension pulley 4 towards the top, afterwards, this other end of this hoist cable 5 extends to lift car side deflection sheave 6 upward, and on the direction of approximate horizontal, extend to another lift car side deflection sheave 7, and after turning to, extends by this lift car side deflection sheave 7 towards the below.Afterwards, these hoist cable 5 these other ends extend to the suspension pulley 8 on lift car 1 top, and after suspension pulley 8 turns to, extend to the 1st driving rope sheave side deflection sheave 9 towards the top, be wound up into the top that drives rope sheave 10 afterwards, and on this driving rope sheave 10, reel roughly 360 °.Afterwards, this other end of this hoist cable 5 extends to the 2nd and drives rope sheave side deflection sheave 12, and extends towards the below after deflection sheave 12 turns to.Afterwards, this other end of this hoist cable 5 extends to the suspension pulley 13 on counterbalanced weight 2 tops, and extends towards the top after suspension pulley 13 turns to.Afterwards, this other end of this hoist cable 5 extends to balance heavy side deflection sheave 14, and extends towards the below after deflection sheave 14 turns to, and arrives the hoist cable connecting element 15 on counterbalanced weight 2 tops, and this other end of this hoist cable 5 is fixed on this hoist cable connecting element 15 afterwards.
At this, hoist cable 5 in the present embodiment is driving on the rope sheave 10 method for winding as shown in Figure 9, and 3 hoist cables 5 are reeled roughly after 360 ° driving on the rope sheave face 10a helically, and coiling initial position and coiling end position are still towards axial deviation, therefore, hoist cable 5 can not contact each other.In addition, hoist cable 5 is wound up into the top that drives rope sheave 10 after driving rope sheave side deflection sheave 9 by the 1st, and drives at this and to reel on rope sheave 10 roughly 360 °, drives rope sheave side deflection sheave 12 by the 2nd afterwards and turns to towards the below.That is to say that hoist cable 5 is an equidirectional at the coiling direction that drives on rope sheave the 10, the 1st driving rope sheave side deflection sheave 9 and the 2nd driving rope sheave side deflection sheave 12, that is to say that the coiling direction of hoist cable 5 is a clockwise direction.
According to above-mentioned present embodiment, because hoist cable 5 winding angles that drive on the rope sheave 10 are roughly 360 °, therefore can fully guarantee transmission of power, and can dwindle the diameter of the driving rope sheave 10 of winch 11 that its result can use the winch 11 of little torque.In addition, owing to adopted 3: 1 winding methods, radial weight is separated into 3 parts, and its result can use the winch 11 of little torque.So, in the present embodiment, owing to can adopt the winch 11 of little torque, therefore can realize the miniaturization of winch 11 self, can save the space of hoist trunk.
In addition,, therefore need not improve the position that drives rope sheave 10, need near the bottom that drives rope sheave 10, deflection sheave be set in addition yet in order to obtain sufficient transmission of power because hoist cable 5 winding angles that drive on the rope sheave 10 are roughly 360 °.At this,, therefore help to reduce the height of hoist trunk and the space of saving hoist trunk owing to do not need to improve the position that drives rope sheave 10.And, owing to do not need unnecessary pulley is set, so help to save the space of hoist trunk.
In addition, owing to do not need unnecessary pulley is set, so reduced the number of bends of hoist cable 5, its result has and improves the hoist cable effect in 5 service lifes.And, because hoist cable 5 is a clockwise direction in the volume extension direction that drives on rope sheave the 10, the 1st driving rope sheave side deflection sheave 9 and the 2nd driving rope sheave side deflection sheave 12, so, also can guarantee to prolong the service life of hoist cable 5 even dwindle the radius of rope sheave.
Fig. 3 is the figure of method for winding of hoist cable 5 of the lift facility of expression the present invention the 2nd embodiment, and Fig. 4 is the top cross-sectional view of the hoist trunk in the lift facility of the 2nd embodiment.In the lift facility of present embodiment, be with the difference of the 1st embodiment, side below the floor of lift car 1 is provided with a pair of suspension pulley 8,8a, on the top of hoist trunk, can not be provided with hoist cable connecting element 3,15 to the place that travelling of lift car 1 and counterbalanced weight 2 brought obstruction.That is to say that what adopt in the present embodiment is 2: 1 method for winding, owing to compare with 1: 1 method for winding, can use the winch 11 of little torque, therefore can realize the miniaturization of winch 11, its result can save the space of hoist trunk.
In addition, as shown in Figure 4, in the present embodiment, be that the 1st drives rope sheave side deflection sheave the 9, the 2nd drives rope sheave side deflection sheave 12 and drive rope sheave 10 to tilt with respect to the switching direction of elevator lobby door with the difference of the 1st embodiment.By setting like this, even adopt 2: 1 method for winding, also winch 11 can be arranged in the vertical projection of lift car 1, and counterbalanced weight 2 can be arranged on the back of lift car 1.
And, in the present embodiment, the same with the 1st embodiment, the 1st drives rope sheave side deflection sheave 9 and the 2nd drives the 12 roughly linearity settings of rope sheave side deflection sheave, and between is provided with and drives rope sheave 10 and winch 11, therefore, the same with the 1st embodiment, radial weight acts on hardly and drives on the rope sheave 10.In addition, do not need to carry out the position that drives rope sheave 10 is moved towards the top to regulate the operation of hoist cable 5 winding angles.Therefore, can obtain the effect in the space of saving hoist trunk, that is, even can obtain the effect that winch 11 also can be set in the limited hoist trunk in space.
In addition, the shape of the driving rope sheave face 10a in the present embodiment as shown in figure 10, the radius that drives rope sheave 10 is less then bigger in axial centre at axial end portion.And, drive rope sheave face 10a and form curved surface, be roughly the elliptical shape of rotation specifically or be roughly the circular-arc of rotation.By using above-mentioned driving rope sheave 10, a side that makes rope sheave 5 enter driving rope sheave face 10a is slided to winch 11 opposition sides easily, and slides to winch 11 sides easily from the side that driving rope sheave face 10a comes out.Therefore, hoist cable 5 is difficult for coming in contact each other, thereby can obtain to prevent that hoist cable 5 from the effect of abnormal wear taking place.
Fig. 5 is the figure of method for winding of hoist cable 5 of the lift facility of expression the present invention the 3rd embodiment, and Fig. 6 is the top cross-sectional view of hoist trunk of the lift facility of the 3rd embodiment.The lift facility of present embodiment and the 1st embodiment are roughly the same, also use 3: 1 method for winding, but concrete hoist cable method for winding is different, below describe with reference to Fig. 5.
As shown in the figure, an end of hoist cable 5 is fixing by the hoist cable connecting element 3 of lift car 1 bottom, and the other end of hoist cable 5 extends to the direction of approximate horizontal from this hoist cable connecting element 3, turns to the back to extend towards the top through suspension pulley 4.Afterwards, this other end of hoist cable 5 extends to lift car side deflection sheave 6 upward, and extends to another lift car side deflection sheave 7 along the direction of approximate horizontal, turns to the back to extend towards the below through this lift car side deflection sheave 7.And then, the suspension pulley 8 of this other end of this hoist cable 5 by lift car 1 top turns to and extends towards the top, be suspended to the top that drives rope sheave 10 by driving rope sheave side deflection sheave 18 backs by volume, roughly reel on this drivings rope sheave 10 turn to after 450 ° towards below extension.Then, this other end of hoist cable 5 extends to the suspension pulley 13 on counterbalanced weight 2 tops, extends towards the top after turning to.Afterwards, this other end of this hoist cable 5 turns to the back to extend to the hoist cable connecting element 15 that reaches counterbalanced weight 2 tops towards the below through balance heavy side deflection sheave 14, and is fixed on this hoist cable connecting element 15.
So, drive rope sheave side deflection sheave 18 between the suspension pulley 8 and driving rope sheave 10 of lift car, have the effect that the 2nd among above-mentioned the 1st embodiment drives rope sheave side deflection sheave 12 concurrently and drive rope sheave 10.Because deflection sheave quantity reduces, so can correspondingly save the required space of suspension (overhead).In addition,, and can not as the 1st embodiment, between the 1st driving rope sheave side deflection sheave 9 and the 2nd driving rope sheave side deflection sheave 12, be provided with when driving rope sheave 10, then adopt present embodiment effective especially if be subjected to the restriction of physical property condition.And, different with above-mentioned the 1st embodiment, in the present embodiment, because hoist cable 5 winding angles that drive on the rope sheave 10 are roughly 450 °, so can carry out more efficiently transmission of power.In addition, it is all overlapping that the winch 11 of present embodiment is configured to its vertical projection and lift car 1 and counterbalanced weight 2.
In addition, the radius of the driving rope sheave 10 of present embodiment is less and bigger at the opposition side of main body side at the main body side of winch 11, specifically as shown in figure 11, has the driving rope sheave face 10a of the truncated cone shape of being roughly.Therefore, pressing roughly one with respect to the face of the driving rope sheave face 10a of hoist cable 5 regularly, because hoist cable 5 is more near the just easy more slip of the main body side of winch 11, so hoist cable 5 is difficult for coming in contact each other, thereby can obtain the effect that prevents that abnormal wear from taking place.
Fig. 7 is the figure of method for winding of hoist cable 5 of the lift facility of expression the present invention the 4th embodiment, and Fig. 8 is the top cross-sectional view of the hoist trunk in the lift facility of the 4th embodiment.The lift facility of present embodiment is identical with the 2nd embodiment, has adopted 2: 1 method for winding, and the difference of itself and the foregoing description is that its counterbalanced weight 2 is arranged on the left part of lift car 1.At this, the left part of lift car 1 is meant from elevator lobby sees the part that is positioned at lift car 1 left side.In addition, drive rope sheave 10 and have the effect that the 1st among above-mentioned the 1st embodiment drives rope sheave side deflection sheave 9 concurrently, its advantage is winch 11 can be arranged on the position of being convenient to maintain.
In addition, shot-ball peening has been implemented on the surface of the driving rope sheave 10 in the present embodiment or annular knurl is handled, and has perhaps implemented the plating processing of nickel plating or chromium plating etc. etc.Certainly, also can after implement the processing of above-mentioned shot-ball peening or annular knurl, further implement plating and handle.
In above-mentioned the 1st to the 4th embodiment, winding angle is configured to roughly 360 ° angle or the angle above 360 °, for example be configured to 360 ° and add roughly 90 ° roughly 450 ° angle, but as long as at least roughly more than 360 ° the time, even then adopt the driving rope sheave of minor diameter, also can carry out transmission of power effectively.In addition, when needs further improve the efficient of transmission of power, can adopt the hoist cable 5 of surface applied resin.
In addition, in above-mentioned the 1st~4 embodiment, all adopted the mode of suspending lift car 1 by the suspension pulley of lift car 1 top or bottom in midair.Therefore, be fixed on the lift car with the end of the hoist cable fixed link (thimble rod) that uses vertical direction as the hoist cable connecting element, and adopt the prior art of 1: 1 method for winding to compare hoist cable, few in the restriction of suspension direction.In addition, in above-mentioned the 1st, 3 embodiment, be provided with hoist cable connecting element 3, but because this hoist cable connecting element 3 is set up in the horizontal direction, the size that therefore can suppress the short transverse of hoist trunk increases in the bottom of lift car 1.

Claims (15)

1. lift facility, its lift car and counterbalanced weight in hoist trunk drives by the hoist cable suspention and by winch, and this lift facility is characterised in that,
This lift facility has the suspension pulley that is arranged on described elevator car upper, be arranged on the suspension pulley and the hoist cable on described counterbalanced weight top, one end of described hoist cable is fixed by the hoist cable connecting element of described lift car, the other end then extends to lift car side deflection sheave from this hoist cable connecting element towards the top, after turning to, this deflection sheave extends to the suspension pulley of described lift car towards the below, after this suspension pulley turns to, extend to the 1st and drive rope sheave side deflection sheave towards the top, drive the top that rope sheave side deflection sheave volume is suspended to the driving rope sheave of described winch through the 1st afterwards, and extend to the 2nd after 360 ° and drive rope sheave side deflection sheave reeling on this driving rope sheave roughly, after turning to, this deflection sheave extends to the suspension pulley of described counterbalanced weight towards the below, after turning to, this suspension pulley extends to balance heavy side deflection sheave towards the top, after turning to, extends by this deflection sheave towards the below, and be fixed on the hoist cable connecting element of described counterbalanced weight, the axial length of described winch is greater than the diameter of described driving rope sheave.
2. lift facility as claimed in claim 1 is characterized in that,
The described the 1st drives rope sheave side deflection sheave, the 2nd driving rope sheave side deflection sheave and driving rope sheave is positioned at roughly the same height, mutual vertical projection almost parallel.
3. lift facility, its lift car and counterbalanced weight in hoist trunk drives by the hoist cable suspention and by winch, and this lift facility is characterised in that,
This lift facility has the suspension pulley that is arranged on described elevator car upper, be arranged on the suspension pulley and the hoist cable on described counterbalanced weight top, one end of described hoist cable is fixed by the hoist cable connecting element of described lift car, the other end then extends to lift car side deflection sheave from this hoist cable connecting element towards the top, after turning to, this deflection sheave extends to the suspension pulley of described lift car towards the below, after turning to, extends this suspension pulley towards the top, through driving rope sheave side deflection sheave and drive rope sheave the suspension pulley that extends to described counterbalanced weight after turning to towards the below, after turning to, this suspension pulley extends to balance heavy side deflection sheave towards the top, after turning to, extends by this deflection sheave towards the below, and be fixed on the hoist cable connecting element of described counterbalanced weight, identical at the coiling direction on the described driving rope sheave side deflection sheave with coiling direction on driving rope sheave, the winding angle of described hoist cable on described driving rope sheave is roughly 450 °, and the axial length of described winch is greater than the diameter of described driving rope sheave.
4. lift facility as claimed in claim 3 is characterized in that,
Described driving rope sheave side deflection sheave and driving rope sheave are positioned at roughly the same height, and mutual vertical projection almost parallel.
5. as claim 3 or 4 described lift facilities, it is characterized in that,
Described driving rope sheave side deflection sheave is between the suspension pulley and described driving rope sheave of described lift car.
6. as claim 1 or 3 described lift facilities, it is characterized in that,
Described lift car side deflection sheave has 2 deflection sheavies.
7. as claim 1 or 3 described lift facilities, it is characterized in that,
The hoist cable connecting element of described lift car is arranged on the bottom of described lift car, the described hoist cable that one end is fixed on this hoist cable connecting element extends to the suspension pulley that is arranged on described lift car lower side on the direction of approximate horizontal, and extends towards the top after this suspension pulley turns to.
8. as claim 1 or 3 described lift facilities, it is characterized in that,
The surface of described hoist cable is covered by resin.
9. as claim 1 or 3 described lift facilities, it is characterized in that,
The radius of described driving rope sheave is less in axial end, and bigger at axial center.
10. lift facility as claimed in claim 9 is characterized in that,
The rope sheave surface of described driving rope sheave is roughly the elliptical shape of rotation, perhaps is roughly the circular shape of rotation.
11. as claim 1 or 3 described lift facilities, it is characterized in that,
The radius of described driving rope sheave is less at the main body side of described winch, and bigger at the opposition side of main body side.
12. lift facility as claimed in claim 11 is characterized in that,
The rope sheave surface of described driving rope sheave is roughly truncated cone shape.
13. as claim 1 or 3 described lift facilities, it is characterized in that,
Shot-ball peening has been carried out on the rope sheave surface of described driving rope sheave or annular knurl is handled.
14. as claim 1 or 3 described lift facilities, it is characterized in that,
The rope sheave surface of described driving rope sheave has been carried out the plating of nickel plating or chromium plating etc. and has been handled.
15. as claim 1 or 3 described lift facilities, it is characterized in that,
The rope sheave surface of described driving rope sheave is further carried out the plating of nickel plating or chromium plating etc. and is handled after having carried out the processing of shot-ball peening or annular knurl.
CN2007800049340A 2006-03-31 2007-01-15 Elevator device Expired - Fee Related CN101378983B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2006096371A JP5017904B2 (en) 2006-03-31 2006-03-31 Elevator equipment
JP096371/2006 2006-03-31
PCT/JP2007/050404 WO2007116587A1 (en) 2006-03-31 2007-01-15 Elevator device

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CN101378983B true CN101378983B (en) 2011-06-22

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WO2007116587A1 (en) 2007-10-18
HK1126741A1 (en) 2009-09-11
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JP5017904B2 (en) 2012-09-05
CN101378983A (en) 2009-03-04

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