CN104909244A - Elevator and compensating sheave employed by the elevator - Google Patents

Elevator and compensating sheave employed by the elevator Download PDF

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Publication number
CN104909244A
CN104909244A CN201510087040.9A CN201510087040A CN104909244A CN 104909244 A CN104909244 A CN 104909244A CN 201510087040 A CN201510087040 A CN 201510087040A CN 104909244 A CN104909244 A CN 104909244A
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CN
China
Prior art keywords
wheel
elevator
tension
lift car
compensation
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201510087040.9A
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Chinese (zh)
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CN104909244B (en
Inventor
吉野智彦
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Hitachi Ltd
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Hitachi Ltd
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Filing date
Publication date
Priority to JP2014-050607 priority Critical
Priority to JP2014050607A priority patent/JP6215093B2/en
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of CN104909244A publication Critical patent/CN104909244A/en
Application granted granted Critical
Publication of CN104909244B publication Critical patent/CN104909244B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00Other common features of elevators
    • B66B7/06Arrangements of ropes or cables
    • B66B7/10Arrangements of ropes or cables for equalising rope or cable tension

Abstract

The invention provides an elevator and a compensating sheave employed by the elevator. According to the scheme, even in a high-lift elevator, the tension of a main suspension line can be conveniently applied, and the upsizing of a compensating sheave can be avoided. The compensating sheave respectively applies tension to compensation ropes in connection with an elevator car and a counterpoise. A tension adjusting mechanism (30) capable of adjusting the tension applied to a compensation rope is arranged and comprises a pair of compensation sheave guide rails (12) fixed in a lifting channel (28); a sheave main body (8) having side plates (10) and a drum portion (8a) rotatingly arranged between the side plates; a guide plate (12) covering the upper surface of the sheave main body; a fixing support (17) installed on the compensation sheave guide rails, and fixedly provided with a screw rod (14) at a position higher than the guide plate; a movable plate (20) with a nut screwing with the screw rod; and a spring (21) arranged between the guide plate and the movable plate.

Description

The compensation wheel that elevator and elevator use
Technical field
The present invention relates to the compensation wheel that a kind of elevator and elevator use, especially relate to a kind of be suitable for high-lift elevator elevator and the compensation wheel that uses of elevator.
Background technology
Existing hoist cable traction elevator adopts so-called well-bucket mode, and main hoist cable is wound on towing machine and leading sheave by it, and lift car is arranged on the end side of main hoist cable, counterweight is arranged on another side of main hoist cable.In this hoist cable traction elevator, the weight of lift car and the weight of counterweight add the deadweight of the main hoist cable of cage side and the deadweight of the main hoist cable of counterweight-side, work as the tension force acted on the main hoist cable of each side.
Therefore, when lift car moves to the superiors or orlop, the Tension Difference caused because of the length of main hoist cable reaches maxim.In order to reduce the Tension Difference of main hoist cable, the pulley (hereinafter referred to as " compensating wheel ") compensating tension force is being set as the pit bottom hoist trunk, by being wound on the end of the rope (hereinafter referred to as " compensates rope ") that this compensation is taken turns respectively with lift car with to reconnecting, thus the overbalance of the tension force of main hoist cable is compensated.
Patent Document 1 discloses the above-mentioned unbalanced method alleviating the tension force of main hoist cable.In the lift facility disclosed in this publication, by the upper end of compensation hawser and to reconnecting, the bottom compensating hawser is wound on the reel in the pit being arranged at hoist trunk bottom.In addition, in pit, be provided with electrical motor reel being carried out to rotary actuation, carry out the tension force of regulating action on compensation hawser by carrying out rotary actuation to this electrical motor.
Prior art document
Patent documentation
Patent documentation 1 Japanese Patent Laid-Open 2005-320105 publication
Summary of the invention
The problem that invention will solve
Have in the elevator of the hoist cable traction-type compensating wheel existing, the end side of compensates rope is installed on the elevator car, another side of compensates rope is arranged on counterweight, and the pars intermedia of compensates rope is wound on compensation wheel, alleviate the Tension Difference of main hoist cable thus.
, in existing hoist cable traction elevator, wheel must be compensated for every platform elevator design, cause manufacturing cost and man-hour to increase.That is, due to the rated passenger (weight of lift car) of elevator and lift equal-specification different because of building, so the compensation wheel of the best is also different because of building, and which hinders the normalisation compensating wheel.In addition, in order to high-lift and with in the elevator used at a high speed, the Tension Difference produced because of the deadweight of main hoist cable becomes large, cause compensating wheel must maximize, may make to compensate wheel and cannot be accommodated in pit.In addition, tension force due to compensates rope depends on the deadweight of compensates rope and compensates the weight of wheel, so the weight because of lift car occur to change or the size of building occur to change etc. and traction is occurred problem time, can cause cannot adjusting tension force.
The present invention makes in view of shortcoming existing in above-mentioned prior art, the object of the invention is to, even high-lift elevator, also can apply the tension force of main hoist cable easily, and can avoid compensating wheel maximization.Other objects of the present invention are the tension range being expanded main hoist cable by identical compensation wheel.
Solution
To achieve these goals, the invention is characterized in and provide a kind of elevator, it comprises: in hoist trunk, carry out the lift car that is elevated and counterweight; The main hoist cable driven by towing machine, one end thereof is connected with described lift car, another end and described to reconnecting; Connect the compensates rope between the bottom of described lift car and the bottom of described counterweight; Take turns with the compensation of the centre portion being arranged on described compensates rope, in described elevator, described compensation wheel has: rotating cylinder portion, and it can rotate freely, and is wound with described compensates rope; With a pair compensation wheel guide rail, it is fixed in described hoist trunk, described rotating cylinder portion is kept in the mode of above-below direction movement to allow described rotating cylinder portion, the tension adjustment mechanism applying tension force to the compensates rope being wound on described rotating cylinder portion is attached on described compensation wheel, described tension adjustment mechanism produces application force by being arranged on the described spring compensated between wheel guide rail and described rotating cylinder portion, comes to apply tension force to described compensates rope.
In addition, realize above-mentioned purpose other feature of the present invention and be that providing a kind of compensates wheel, it is for applying tension force with lift car with to the compensates rope reconnected respectively to two ends, the tension adjustment mechanism that can adjust the tension force being applied to described compensates rope is provided with in described compensation wheel, described tension adjustment mechanism comprises: a pair compensation wheel guide rail, and it is fixedly installed on and carries out in the hoist trunk that is elevated for described lift car; Wheel body, it has side plate and arranges rotating cylinder portion between the side plates rotationally; Cover the directing plate of the upper surface of described wheel body; Fixed support, it is arranged on described compensation wheel guide rail, is positioned at the position more closer to the top than described directing plate, is fixedly installed screw rod; The movable platen of the nut that subsidiary and described screw rod screws togather; And the spring for generation of application force be arranged between described directing plate and described movable platen, in described tension adjustment mechanism, by rotating described nut, movable platen is moved up and down, the application force produced by described spring is applied in described compensates rope as tension force.
Invention effect
According to the present invention, elevator has to compensate takes turns, and is provided with tension adjustment mechanism on this compensation wheel, even if so in high-lift elevator, also can apply the tension force of main hoist cable easily, and compensation wheel can be avoided to maximize.In addition, the load compensation scope of main hoist cable can be expanded by identical compensation wheel.
In addition, other object, effect and effect of the present invention is set forth in the detailed description of the present invention of the following stated.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the embodiment representing elevator involved in the present invention.
Fig. 2 is the front view of the compensation wheel that the elevator shown in Fig. 1 has.
Fig. 3 is the lateral plan of the compensation wheel shown in Fig. 2.
Fig. 4 is the birds-eye view of the compensation wheel shown in Fig. 2.
Fig. 5 is the enlarged drawing of the tension adjustment mechanism of the compensation wheel shown in Fig. 2.
Fig. 6 is the birds-eye view of the directing plate of the compensation wheel shown in Fig. 2.
Detailed description of the invention
Be described referring to the embodiment of accompanying drawing to elevator involved in the present invention.
Fig. 1 is the schematic diagram of the embodiment representing elevator 50 involved in the present invention.In elevator 50, in hoist trunk 28, be provided with the lift car 1 of lifting in this hoist trunk 28.Also be provided with in hoist trunk for keeping with the load of lift car 1 counterweight 2 that balances.
One end is connected with the top of lift car 1 and lift car 1 and counterweight 2 link together by the main hoist cable 5 that the other end is connected with the top of counterweight 2.Main hoist cable 5 is wound on leading sheave 4 and has on the towing machine 3 of electrical motor, driving motor and towing machine is rolled or send main hoist cable 5, makes lift car 1 be elevated thus.In addition, lift car 1 is also connected with not shown overspeed governor etc., overspeed governor is wound on velocity limiter, control the rising or falling speed of lift car 1.
Wherein, in elevator 50 involved in the present invention, according to the length L of the main hoist cable 5a from towing machine 3 to lift car 1 cA, on main hoist cable 5a, except effect has the weight W of lift car cAload beyond, also effect has the deadweight WR of main hoist cable 5a cAload, this even load acts on main hoist cable 5a as tension force.Equally, according to the length L of the main hoist cable 5b from towing machine 3 to counterweight 2 bW, on main hoist cable 5b, have the load W of counterweight 2 as tension force effect bWwith the deadweight WR of main hoist cable 5b bWload and.
The weight set of counterweight 2 be lift car 1 unloaded time load and the passenger of lift car 1 reach load when allowing load and about 1/2.Therefore, in the main hoist cable 5a of lift car 1 side and the main hoist cable 5b of counterweight 2 side, when lift car 1 is unloaded or when lift car 1 reaches maximum load load, the Tension Difference caused because of passenger's variation is maximum.But, suppose that this Tension Difference is to set the motor capacity of towing machine 3, and tension change can be absorbed, so the passenger's variation in lift car 1 brings impact to the traction of main hoist cable 5 hardly.
, the length L of the main hoist cable 5a of lift car 1 side produced because of the position of lift car 1 cAand the length L of the main hoist cable 5b of counterweight 2 side to move up in the side contrary with lift car 1 bWvariation main hoist cable 5 can be caused to produce large Tension Difference.Especially in order to high-lift and in the elevator 50 that is elevated at a high speed, due to the deadweight of main hoist cable 5 can not be ignored, so this situation becomes particularly remarkable.When main hoist cable 5 produces have a large Tension Difference time, in the towing machine 3 driving main hoist cable 5, can skidding be produced between main hoist cable 5 and the rope sheave being arranged on the output shaft of towing machine 3, cause traction to occur bad.
In order to eliminate this defect, between lift car 1 and counterweight 2, be connected with compensates rope 6.That is, one end of compensates rope 6 is connected to the bottom of lift car 1, and the other end of compensates rope 6 is connected to the bottom of counterweight 2.In addition, the pars intermedia of compensates rope 6 is wound on be fixedly installed on as in the pit 25 bottom hoist trunk 28 compensation wheel 7 on.The tension force acted in compensates rope 6 relaxes the overbalance of the tension force between main hoist cable 5a and main hoist cable 5b.
Fig. 2 is the front view of the compensation wheel 7 shown in Fig. 1, and Fig. 3 is the lateral plan of the compensation wheel 7 shown in Fig. 1, and Fig. 4 is the birds-eye view compensating wheel 7.Compensate wheel 7 have cylindrical shape rotating cylinder portion 8a, cover the side plate 10 of the square shape of two sides of rotating cylinder portion 8a and be arranged on the axle 9 at medial surface center of two side plates 10,10 via bearing 9a.Bearing 9a remains on side plate 10.Thus, rotating cylinder portion 8a and axle 9 can rotate freely relative to side plate 10.In addition, as shown in Figure 3, bearing 9a is arranged between rotating cylinder portion 8a and axle 9.Now, the two ends of axle 9 are fixed on side plate 10.No matter in any conjunction situation, the rotating part and the wheel body 8 that comprise rotating cylinder portion 8a all can rotate freely relative to side plate 10.
Central portion on the Width of the lateral surface of each side plate 10, is provided with at two positions of above-below direction and compensates Wheel-guiding part 11.Compensation Wheel-guiding part 11 is taken turns guide rail 12 with compensation and is engaged.Compensate wheel guide rail 12 as shown in the birds-eye view of Fig. 4, be the rail-like component extended in vertical direction that cross section is in T shape, bottom is fixed in the pit 25 that is formed at bottom hoist trunk 28.
Compensate wheel guide rail 12 to arrange in pairs to make the mode as the locking rail portion 12a of T-shaped lever part is relative.Use when compensating the rail clamp 18 of the tension adjustment mechanism 30 stated after mounting as the installation portion 12b of T-shaped crossbar sections of wheel guide rail 12.Take turns on face that guide rail engage what compensate Wheel-guiding part 11 with compensating, be formed with guiding groove 11a in above-below direction extension to clip the mode compensating the locking rail portion 12a taking turns guide rail 12.
Rotating cylinder portion 8a is wound with many compensates rope 6 (6a ~ 6c).Compensates rope 6 is applied with as tension force the deadweight comprising rotating cylinder portion 8a, be arranged on the stationary part such as the wheel body 8 of the axle 9 of 8a inside, rotating cylinder portion and bearing 9a etc. and side plate 10.According to the weight of wheel body 8 grade, wheel body 8 grade automatically adjusts the position of above-below direction under the guiding of locking with rail portion 12a.
In the prior art, main hoist cable 5a when reaching extreme higher position according to lift car 1 and the weight difference of main hoist cable 5b decide the weight compensating wheel 7.Therefore, the weight compensating wheel 7 reaches 1 ton of weight sometimes.
For this reason, in the present invention, the top compensating wheel 7 is provided with tension adjustment mechanism 30, and it can also apply tension force to compensates rope 6 except the weight of wheel body 8 grade.Referring to Fig. 2 to Fig. 6, the details of this tension adjustment mechanism 30 is described.Fig. 5 is the front elevation of the amplification of tension adjustment mechanism 30, and Fig. 6 is the birds-eye view of the directing plate 13 that tension adjustment mechanism 30 has.
Compensate the face of the side contrary with rotating cylinder portion of the installation portion 12b of wheel guide rail 12 at each, in the position more closer to the top than side plate 10, be provided with the fixed support 17 be made up of triangular steel (angle steel) that the Width along side plate 10 extends.Fixed support 17 fixes position by clamping with the pair of guide rails fixture 18 of the rear side being arranged on fixed support 17 the installation portion 12b being positioned at locking rail portion 12a both sides compensating wheel guide rail 12.In order to the position of fixing fixed support 17, rail clamp 18 has bolt clamp device.
On the other hand, be provided with directing plate 13 in the mode of the upper surface covering each side plate 10 compensating wheel 7, the length of the Width of this directing plate 13 is roughly the same with fixed support 17, and slightly shorter than the diameter of rotating cylinder portion 8a.The length of directing plate 13 on the direction (the Cylindorical rod direction of rotating cylinder portion 8a) orthogonal with Width as shown in Figure 5, extends to the end face being arranged on the fixed support 17 compensated on wheel guide rail 12.In addition, directing plate 13 covers the area marked by a pair fixed support 17, so namely compensate the part at wheel guide rail 12 place in two ends of directing plate 13, disturbing in order to avoid taking turns guide rail 12 with compensation, being formed with otch 16 (with reference to Fig. 6).
Through hole 15 is formed in 4 bights 22 ~ 25 of directing plate 13.Two ends of the length direction corresponding with this through hole 15 of directing plate 13 are formed with tapped bore, and screw rod 14 is fixedly mounted in each tapped bore.Or by welding etc., screw rod 14 is arranged on directing plate 13.
The bottom of each screw rod 14 is through through hole 15.In addition, spring 21 is wound on screw rod 14 around, and the upper end of spring 21 is fixed by the nut 19 screwed togather with screw rod 14 across the movable platen 20 having screw rod 14 to pass.Movable platen 20 and nut 19 also can be fixed together by welding etc.
The movable platen 20 being provided with nut 19 is moved up and down under the guiding of screw rod 14 by nutting 19, makes spring 21 compress or extend.Thus, spring 21 produces elastic force (application force).The application force produced acts on wheel body 8 via directing plate 13, and acts in compensates rope 6 as tension force.
As shown in Figure 6, spring 21 is arranged on roughly symmetrical position near 4 bights 22 ~ 25 of directing plate 13.Because the amount of compression of each spring 21 in 4 bights 22 ~ 25 can adjust respectively individually, so when there being unbalanced load to act on compensation wheel 7, can come to apply tension force to compensates rope 6 equably by carrying out adjustment to each spring 21.In figure 6,4 springs 21 are arranged on support bracket fastened lower surface, as long as but be arranged on symmetrically on the fixed support 17 of left and right, just can prevent application force from occurring overbalance.Therefore, spring 21 is not limited in 4, also can be 6,8 etc.
The Adjustment principle of spring 21 only need carry out when being imported in hoist trunk 28 by lift car 1, so setting is convenient.But along with ageing occurs for the main hoist cable of elevator 50 and various rope sheaves etc., tractive force etc. can change, so preferably adjust when periodic inspection and the maintenance of elevator.Now, only need by the nut 19 that is arranged on movable platen 20 towards left rotation and right rotation, even if so the tension adjustment operation of rope 6 also can be compensated easily in this narrow space of pit 25.
In the present embodiment, owing to can adjust the amount of compression of spring 21 according to the displacement of movable platen 20, so the tension force of compensates rope 6 can also be adjusted.In the prior art, compensation wheel 7 is changed according to the specification of elevator.; in the present embodiment; the application force that can be produced by spring 21 owing to compensating wheel 7 adjusts the tension force of compensates rope 6; so do not need the design and the replacing that compensate wheel for every platform elevator; only need prepare the specification product of standard, the deviation of standard items can be undertaken adjusting and compensating by spring.
In addition, according to the present embodiment, owing to the application force that spring produces can be applied in compensates rope as tension force, even if so use undersized compensation to take turns, also can apply large tension force by the application force adding big spring.Further, by using the nonlinear spring such as variable pitch spring or cylindrical-conical coil spring as the spring applying tension force, tension adjustment scope can be expanded.The application force applying the above-mentioned spring of tension force only need have about 1kN usually.But, application force is not limited thereto, and also can use the spring that can produce greater role power.
The present invention is not limited in above-described embodiment, can implement with other various forms.Above-described embodiment is exemplary embodiment in all respects.Scope of the present invention, as shown in technical scheme, belongs to and all comprises within the scope of the invention with the distortion in the scope of the scope equalization of technical scheme and changing.
Nomenclature
1 ... lift car, 2 ... counterweight, 3 ... towing machine, 4 ... leading sheave, 5 ... main hoist cable, 5a ... the main hoist cable of cage side, 5b ... the main hoist cable of counterweight-side, 6 ... compensates rope, 7 ... compensate wheel, 8 ... wheel body, 8a ... rotating cylinder portion, 9 ... axle, 9a ... bearing portions, 10 ... side plate, 11 ... compensate Wheel-guiding part, 11a ... guiding groove, 12 ... compensate wheel guide rail, 12a ... locking rail portion, 12b ... installation portion, 13 ... directing plate, 14 ... screw rod, 15 ... through hole, 16 ... otch, 17 ... fixed support, 18 ... rail clamp, 19 ... nut, 20 ... movable platen, 21 ... spring, 22 ~ 25 ... (directing plate) bight, 25 ... pit, 28 ... hoist trunk, 30 ... tension adjustment mechanism, 50 ... elevator

Claims (5)

1. an elevator, it comprises: in hoist trunk, carry out the lift car that is elevated and counterweight; The main hoist cable driven by towing machine, one end thereof is connected with described lift car, another end and described to reconnecting; Connect the compensates rope between the bottom of described lift car and the bottom of described counterweight; Take turns with the compensation of the pars intermedia being arranged on described compensates rope, the feature of described elevator is:
Described compensation wheel comprises: rotating cylinder portion, and it can rotate freely, and it is wound with described compensates rope; With a pair compensation wheel guide rail, it is fixed in described hoist trunk, described rotating cylinder portion is kept in the mode of above-below direction movement to allow described rotating cylinder portion, tension adjustment mechanism wheel being attached to and applying tension force to the compensates rope being wound on described rotating cylinder portion is compensated described, described tension adjustment mechanism produces application force by being arranged on the described spring compensated between wheel guide rail and described rotating cylinder portion, applies tension force thus to described compensates rope.
2. elevator as claimed in claim 1, is characterized in that:
The described wheel that compensates compensates the Tension Difference of the described main hoist cable that the difference of the deadweight by the deadweight of described main hoist cable between the described lift car of described lift car when extreme higher position and described towing machine and the described main hoist cable between described towing machine and described counterweight causes together with the described tension adjustment mechanism set up.
3. an elevator is with compensating wheel, and for applying tension force with lift car with to the compensates rope reconnected respectively to two ends, the feature that described elevator compensates wheel is:
Be provided with the tension adjustment mechanism that can adjust the tension force being applied to described compensates rope, described tension adjustment mechanism comprises: a pair compensation wheel guide rail, and it is fixedly installed on and carries out in the hoist trunk that is elevated for described lift car; Wheel body, it has side plate and arranges rotating cylinder portion between the side plates rotationally; Cover the directing plate of the upper surface of described wheel body; Fixed support, its be arranged on described compensation wheel guide rail on and be positioned at the position more closer to the top than described directing plate, be fixedly installed screw rod; With the movable platen of the nut screwed togather with described screw rod; And the spring for generation of application force be arranged between described directing plate and described movable platen, in described tension adjustment mechanism, by rotating described nut, movable platen being moved up and down, thus the application force that described spring produces being applied in described compensates rope as tension force.
4. elevator as claimed in claim 3 is with compensating wheel, it is characterized in that:
The described screw rod of described tension adjustment mechanism, described movable platen and described spring are arranged on 4 bights of described directing plate, separately can corrective action power independently.
5. elevator as claimed in claim 3 is with compensating wheel, it is characterized in that:
The described spring that described tension adjustment mechanism has is nonlinear spring.
CN201510087040.9A 2014-03-13 2015-02-25 Compensation wheel used in elevator and elevator Active CN104909244B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2014-050607 2014-03-13
JP2014050607A JP6215093B2 (en) 2014-03-13 2014-03-13 Elevator and compensator used for it

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Publication Number Publication Date
CN104909244A true CN104909244A (en) 2015-09-16
CN104909244B CN104909244B (en) 2018-01-23

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CN201510087040.9A Active CN104909244B (en) 2014-03-13 2015-02-25 Compensation wheel used in elevator and elevator

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107416648A (en) * 2016-05-23 2017-12-01 株式会社日立大厦系统 Lift appliance
CN107758470A (en) * 2016-08-18 2018-03-06 奥的斯电梯公司 For compensating the tensioning apparatus, compensation wheel and elevator of wheel

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JPH11228055A (en) * 1998-02-17 1999-08-24 Toshiba Corp Balanced rope tensioning wheel for elevator
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JP2002128419A (en) * 2000-10-19 2002-05-09 Toshiba Corp Safety device for vehicle for compensating pulley for elevator
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CN102897628A (en) * 2012-09-12 2013-01-30 昆山京都电梯有限公司 Spring type tension roller

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US1944772A (en) * 1932-09-10 1934-01-23 Westinghouse Elec Elevator Co Elevator compensating rope sheave
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11228055A (en) * 1998-02-17 1999-08-24 Toshiba Corp Balanced rope tensioning wheel for elevator
JP2001039648A (en) * 1999-07-30 2001-02-13 Mitsubishi Electric Building Techno Service Co Ltd Tension method and device for elevator governor rope
JP2002128419A (en) * 2000-10-19 2002-05-09 Toshiba Corp Safety device for vehicle for compensating pulley for elevator
JP2004010222A (en) * 2002-06-05 2004-01-15 Toshiba Elevator Co Ltd Locking releasing device for elevator tie down device
JP2005350190A (en) * 2004-06-09 2005-12-22 Hitachi Ltd Hoisting machine supporting device for elevator
CN102897628A (en) * 2012-09-12 2013-01-30 昆山京都电梯有限公司 Spring type tension roller

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107416648A (en) * 2016-05-23 2017-12-01 株式会社日立大厦系统 Lift appliance
CN107416648B (en) * 2016-05-23 2019-03-29 株式会社日立大厦系统 Lift appliance
CN107758470A (en) * 2016-08-18 2018-03-06 奥的斯电梯公司 For compensating the tensioning apparatus, compensation wheel and elevator of wheel

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JP2015174719A (en) 2015-10-05
JP6215093B2 (en) 2017-10-18
CN104909244B (en) 2018-01-23

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