CN101224844B - Belt teonsion mornitoring device for passenger conveying apparatus - Google Patents
Belt teonsion mornitoring device for passenger conveying apparatus Download PDFInfo
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- CN101224844B CN101224844B CN2008100015938A CN200810001593A CN101224844B CN 101224844 B CN101224844 B CN 101224844B CN 2008100015938 A CN2008100015938 A CN 2008100015938A CN 200810001593 A CN200810001593 A CN 200810001593A CN 101224844 B CN101224844 B CN 101224844B
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- torque instruction
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Abstract
The invention provides a belt tension monitoring device of a passenger conveying device for accurately determine the belt tension of a belt driver using cheap structure. The belt tension monitoring device comprises: a monitoring unit 9 for monitoring the drive information of a motor for driving output by a torque command for controlling the drive of the motor for driving; a brake unit 10 for braking the rotation of a speed reduction unit; a rotation detecting unit 11 for detecting the rotation of the speed reduction unit; a driving device control unit 12 for controlling the action of brake unit and monitoring the rotation detecting unit and monitoring device to control the toque command unit; and a belt tension monitoring unit 13. The motor is driven by the command sent by the torque command unit, when the belt driver does not rotate by the brake unit, if the output frequency of the monitoring unit is constant, it is determined that the belt does not slide; if the output frequency of the monitoring unit is variable, it is determined that the belt slides.
Description
Technical field
The present invention relates to the belt tension monitor unit of device of passenger conveyor.
Background technology
In the prior art, as the belt tension monitor unit, be known on the S. A. separately of strap drive body drive division and strap drive body follower speed detector is set, keeping by constraint component under the state of its S. A., electrical motor for strap drive body drive division gives torque, if this moment, the speed detector in the setting of strap drive body drive division side detected rotation, then judge the strap drive body because wearing and tearing worsen slide (for example with reference to patent documentation 1).
[patent documentation 1] spy opens the 2004-169854 communique
Summary of the invention
But in the belt tension monitor unit of above-mentioned device of passenger conveyor, because need on the S. A. separately of strap drive body drive division and strap drive body follower, speed detector be set, need to be provided with the rotation condition parts of the S. A. of restraint strap transmission body drive division simultaneously, so there is the problem that becomes the high price device.And, in the belt tension monitor unit of the device of passenger conveyor of above-mentioned prior art, sometimes because constraint component is bad, speed detector in the setting of strap drive body drive division side has detected rotation, existence can not be judged that constraint component is bad, still be that the wearing and tearing of strap drive body worsen, and worsens such problem and the bad erroneous judgement of constraint component is decided to be the wearing and tearing of strap drive body.
The present invention forms from above-mentioned actual state of the prior art, and its objective is provides a kind of belt tension of device of passenger conveyor monitor unit, and the structure of the enough cheapnesss of its energy is judged the belt tension of strap drive body accurately.
For implementing above-mentioned purpose, the invention provides a kind of belt tension monitor unit of device of passenger conveyor, the tension force of the strap drive body of the rotation of the drive motor that its supervision is provided with in reductor is delivered in the Machine Room of device of passenger conveyor, it is characterized in that, constitute and have: the torque instruction unit that sends the torque instruction of the driving that is used to control described drive motor; Monitor the monitor unit of the activation bit of the described drive motor of exporting by the torque instruction of this torque instruction unit; On the S. A. of described reductor, fixedly brake the brake unit of the rotation of described reductor; Detect the rotation detecting circuit of the slew mode of described reductor; Control the action of described brake unit and the information of described rotation detecting circuit and described monitor unit that monitors is controlled the driving device controls unit of described torque instruction unit; And belt tension monitor unit, this belt tension monitor unit, keeping by described brake unit under the non-rotary state of described strap drive body, by sending order driving described drive motor, do not have that band slides and the output frequency of described monitor unit changes then judge that having band to slide monitors the belt tension state of described strap drive body if judge if the output frequency of described monitor unit is constant from described driving device controls unit to described torque instruction unit.
And then, the invention is characterized in, be provided with: regularly monitor the belt tension state of described strap drive body and store it to monitor result and its supervision of implicating long-pending travel time constantly memory cell as a result; Need the tensioning again of described strap drive body or change the operation predicting unit in period in the period of operation from the timeliness changing value prediction of the belt tension state of described strap drive body; Operation calendar plan unit with the operation of the tensioning again schedule of the belt tension of the described strap drive body that before belt tension out of control value, plans sth. ahead according to the result of this operation predicting unit in period and next production plan information.
According to the present invention, do not carry out tension detection and maintenance operator by the visual belt tension of confirming the strap drive body because do not need maintenance operator by actual machine, and by controlling and driving electrical motor and control unit, can diagnose the belt tension state of strap drive body, so can lower the dependency degree of the decision-making ability of attended operation time and attenuating maintenance operator, can improve maintainability and reliability, simultaneously, because do not need to be arranged on the constraint element of rotation of the S. A. of the speed detector that is provided with on the S. A. of strap drive body drive division and restraint strap transmission body drive division, so can access the belt tension monitor unit of the device of passenger conveyor that can realize cheapization.
Description of drawings
Fig. 1 is the drive motor vitals front elevation on every side of the device of passenger conveyor of an example of the present invention.
Fig. 2 is the functional block diagram of belt tension monitor unit of the device of passenger conveyor of an example of the present invention.
Fig. 3 is the diagram of circuit of supervisory work process of belt tension monitor unit of the device of passenger conveyor of an expression example of the present invention.
Fig. 4 is the torque instruction output frequency characteristic figure of the drive motor of belt tension monitor unit of the device of passenger conveyor of an example of the present invention when not rotating.
Fig. 5 is the torque instruction output frequency characteristic figure in drive motor when rotation of belt tension monitor unit of the device of passenger conveyor of an example of the present invention.
Fig. 6 is the functional block diagram of belt tension monitor unit of the device of passenger conveyor of another example of the present invention.
Fig. 7 is the diagram of circuit of supervisory work process of belt tension monitor unit of the device of passenger conveyor of expression another example of the present invention.
1 device of passenger conveyor
2 drive motors
3 reductors
4 strap drive bodies
5 sprocket wheels
6 chains
7 belt tension monitor units (example)
8 torque instruction unit
9 monitor units
10 brake units
11 rotation detecting circuit
12 driving device controls unit
13 belt tension monitor units
70 belt tension monitor units (another example)
71 monitor memory cell as a result
72 operation predicting unit in period
73 operation calendar plan unit
The specific embodiment
An example of the belt tension monitor unit of device of passenger conveyor of the present invention below is described with reference to the accompanying drawings.Fig. 1 is the drive motor vitals front elevation on every side of the device of passenger conveyor of an example of the present invention.Fig. 2 is the functional block diagram of belt tension monitor unit of the device of passenger conveyor of an example of the present invention.Fig. 3 is the diagram of circuit of expression by the supervisory work process of the belt tension monitor unit of the device of passenger conveyor of an example of the present invention.Fig. 4 is the torque instruction output frequency characteristic figure of the drive motor of belt tension monitor unit of the device of passenger conveyor of an example of the present invention when not rotating.Fig. 5 is the torque instruction output frequency characteristic figure in drive motor when rotation of belt tension monitor unit of the device of passenger conveyor of an example of the present invention.Fig. 6 is the functional block diagram of belt tension monitor unit of the device of passenger conveyor of another example of the present invention.Fig. 7 is the diagram of circuit of supervisory work process of belt tension monitor unit of the device of passenger conveyor of expression another example of the present invention.
The device of passenger conveyor 1 of the example of the present invention that Fig. 1 represents is made up of escalator, and the drive division of this escalator has: drive motor 2, reductor 3, strap drive body 4, sprocket wheel 5, chain 6.The rotation of drive motor 2 is transmitted to reductor 3 by strap drive body 4.Drive motor 2 is made up of induction motor (IM), uses inverter to carry out speed control (inverter control).The output of reductor 3 passes to sprocket wheel 5 by chain.On the axle of sprocket wheel 5, the rotation of reeling drives the step chains of a plurality of steps (not shown) that are connected ring-type.
The supervision that is provided with in the Machine Room of device of passenger conveyor 1 is to the belt tension monitor unit 7 of the tension force of the strap drive body 4 of the rotation of reductor 3 transmission drive motors 2, as shown in Figure 2, have: the torque instruction unit 8 that sends the torque instruction of the driving that is used for controlling and driving usefulness electrical motor 2; Monitor the monitor unit 9 of the activation bit of the drive motor of exporting by the torque instruction of this torque instruction unit 82; On the S. A. of reductor 3, fixedly come the brake unit 10 of the rotation of braking deceleration machine 3; Detect the rotation detecting circuit 11 of the slew mode of reductor 3; The action of control brake unit 10 and supervision rotation detecting circuit 11 and monitor unit 9 information are come the driving device controls unit 12 of controlling torque command unit 8; And if if make the output frequency that drives drive motor 2 monitor units 9 constant then judge the belt tension monitor unit 13 that does not have that band slides and the output frequency of monitor unit 9 changes then judge the belt tension state that has band to slide to monitor strap drive body 4 making by brake unit 10 retainer belt transmission body 4 under the non-rotary state by sending order to torque instruction unit 8 from driving device controls unit 12.
The supervisory work process of the belt tension monitor unit 7 of an above-mentioned example is described according to Fig. 3～Fig. 5 below.
At first, after the close up shop and stop business such as shop that are provided with device of passenger conveyor 1 (escalator), shown in the step S1 of Fig. 5, judge whether its device of passenger conveyor 1 is the state that normally stops.Then, when device of passenger conveyor 1 is the state that normally stops, advance to the step S2 of Fig. 5, even the control command of sending also remains on brake unit 10 braking unmodified states so that drive order by driving device controls unit 12 for drive motor 2.Thus, by brake unit 10 rotation of reductor 3 is remained on braking mode.
Then, advance to the step S3 of Fig. 5, send torque instruction to drive motor 2 by torque instruction unit 8.The torque value of this moment need be set by the permission transfer capacity of strap drive body 4, but substantially 50%～400% of power taking motivation torque rating.
Then, use monitor unit 9 to measure the torque instruction output frequency of the part that obtains from the output information of drive motor 2, shown in the step S4 of Fig. 5, with belt tension monitor unit 13 judgement torque instruction output frequencies whether constant (whether not changing).Then, in the value of torque instruction output frequency shown in the torque instruction output frequency characteristic figure (inverter output frequency characteristic figure) of Fig. 4, the occasion of the constant passing of cardinal principle, advance to the step S5 of Fig. 5, because drive motor 2 does not rotate, so strap drive body 4 does not slide, judge that with belt tension monitor unit 13 the belt tension state of strap drive body 4 is normal, supervisory work finishes.
Step S4 at Fig. 5, in the value of judging the torque instruction output frequency shown in the torque instruction output frequency characteristic figure (inverter output frequency characteristic figure) of Fig. 5, (t) and the occasion that increases in time, because drive motor 2 is in rotation, so advance to the step S6 of Fig. 5, judge whether by rotation detecting circuit 11 detected rotating speeds be zero.
Step S6 at Fig. 5, being judged to be by rotation detecting circuit 11 detected rotating speeds are zero occasions, slide because of 4 wearing and tearing of strap drive body, so advance to the step S7 of Fig. 5, be judged to be the tensioning again that needs strap drive body 4 or the operation of replacing with belt tension monitor unit 13, supervisory work finishes.
Step S6 at Fig. 5, being judged to be by rotation detecting circuit 11 detected rotating speeds is not zero occasion, because brake unit 10 slides, so advance to the step S8 of Fig. 5, the braking force that is judged to be brake unit 10 with belt tension monitor unit 13 is unusual, and supervisory work finishes.
Belt tension monitor unit 7 by an above-mentioned example, can mechanically diagnose the braking force error state of belt tension state and the wear state and the brake unit 10 of strap drive body 4, the experience and the custom that can not rely on maintenance operator are implemented the belt tension supervisory work, can seek to alleviate the labour of maintenance operator and the reliability that improves supervisory work.
Below, the belt tension monitor unit 70 of above-mentioned another example is described according to Fig. 6.In Fig. 6, the content that the symbolic representation identical with Fig. 2 is identical.
The belt tension monitor unit 7 of the above-mentioned example that the belt tension monitor unit 70 of above-mentioned another example that Fig. 6 represents and Fig. 2 represent, the former is provided with and monitors memory cell 71 and operation predicting unit in period 72 and operation calendar plan unit 73 as a result, and the latter is not provided with supervision memory cell 71 and operation predicting unit in period 72 and operation calendar plan unit 73 as a result, and is different in this.
The supervision that Fig. 6 represents is memory cell 71 as a result, is regularly to monitor the belt tension state of strap drive body 4 and store the long-pending travel time of implicating that it monitors result and its moment by driving device controls unit 12 and belt tension monitor unit 13.Operation predicting unit in period 72 is from from monitoring tensioning again of the timeliness changing value prediction strap drive body 4 of the belt tension state of the information of memory cell 71 (monitor the result and implicate long-pending travel time) and strap drive body 4 as a result or the period of replacing operation necessity.Operation calendar plan unit 73 is according to the result of operation predicting unit in period 72 and the operation of the tensioning again schedule of next production plan information belt tension of (before the use boundary of strap drive body 4) the strap drive body 4 that plans sth. ahead before belt tension out of control value.
The supervisory work process of the belt tension monitor unit 70 of above-mentioned another example is described according to Fig. 7 below.
At first, after the close up shop and stop business such as shop that are provided with device of passenger conveyor 1 (escalator), shown in the step S11 of Fig. 7, judge whether its device of passenger conveyor 1 is the state that normally stops.Then, when device of passenger conveyor 1 is the state that normally stops, advance to the step S12 of Fig. 7, even the control command of sending is so that drive order by driving device controls unit 12 for drive motor 2 and also keep built in moving cell 10 braking unmodified states.Thus, by brake unit 10 rotation of reductor 3 is remained on braking mode.
Then, advance to the step S13 of Fig. 7, send the torque instruction that applies torque A% to drive motor 2 by torque instruction unit 8.The torque A% of this moment need be set by the permission transfer capacity of strap drive body 4, but substantially 200%～400% of the electrical motor torque rating of capping side.
Then, advance to the step S14 of Fig. 7, use monitor unit 9 to measure the torque instruction output frequency that obtains from the output information of drive motor 2, with belt tension monitor unit 13 judgement torque instruction output frequencies whether constant (whether not changing).Then, in the value of the torque instruction output frequency occasion of constant passing substantially shown in the torque instruction output frequency characteristic figure of Fig. 4, advance to the step S15 of Fig. 7, because drive motor 2 does not rotate, so strap drive body 4 does not slide, the belt tension state that is judged to be strap drive body 4 with belt tension monitor unit 13 is normal, advance to the step S16 of Fig. 7, monitor the supervisory work end behind the long-pending travel time T1 of implicating of the result of determination (supervision result) of the belt tension state of memory cell 71 file transmission body 4 as a result and its strap drive body 4 constantly.
In addition, step S14 at Fig. 7, in the value that is judged to be the torque instruction output frequency shown in the torque instruction output frequency characteristic figure of Fig. 5, (t) and the occasion that increases in time, because drive motor 2 is in rotation, so advance to the step S17 of Fig. 7, judge whether by rotation detecting circuit 11 detected rotating speeds be zero.
Step S17 at Fig. 7, being judged to be by rotation detecting circuit 11 detected rotating speeds are zero occasions, slide because of 4 wearing and tearing of strap drive body,, send the torque instruction that applies torque B% to drive motor 2 by torque instruction unit 8 so advance to the step S19 of Fig. 7.This moment torque B%, need set by the permission transfer capacity of strap drive body 4, but take off substantially the limit side the electrical motor torque rating 50%～200%.
Then, advance to the step S20 of Fig. 7, use monitor unit 9 to measure the torque instruction output frequency that obtains from the output information of drive motor 2, with belt tension monitor unit 13 judgement torque instruction output frequencies whether constant (whether not changing).Then, in the value of the torque instruction output frequency occasion of constant passing substantially shown in the torque instruction output frequency characteristic figure of Fig. 4, advance to the step S21 of Fig. 7, because drive motor 2 does not rotate, so strap drive body 4 does not slide, the belt tension state that is judged to be strap drive body 4 with belt tension monitor unit 13 is the by-level of administrative measure, and supervisory work finishes.
In addition, step S20 at Fig. 7, in the value of judging the torque instruction output frequency shown in the torque instruction output frequency characteristic figure of Fig. 5, (t) and the occasion that increases in time, because drive motor 2 is in rotation, shown in the step S22 of Fig. 7, the tension state that is judged to be band transmission biography 4 has the tendency of reduction, advance to the step S23 of Fig. 7, store long-pending travel time T2 of implicating of its result of determination (supervision result) and its strap drive body 4 constantly in the memory cell 71 as a result in supervision.
Then, according in long-pending travel time T2 of implicating of the step S23 of Fig. 7 storage, implicating long-pending travel time T1, give torque A% that drive motor 2 applies and the torque B% that applies for drive motor 2 at the step S19 of Fig. 7 in the step S16 of Fig. 7 storage at the step S13 of Fig. 7, shown in the step S24 of Fig. 7, use the empirical formula try to achieve in advance, calculate the time (to the time of use boundary) that time that is need of the operation of the tensioning again that need carry out strap drive body 4 or replacing checks with operation predicting unit in period 72.
Then, according to time to the needs inspection of calculating (to the time of using boundary) and next production plan information with operation predicting unit in period 72, shown in the step S25 of Fig. 7, with the inspection operation schedule of the belt tension of operation calendar plan unit 73 plan strap drive bodies 4, supervisory work finishes.
In addition, at the step S17 of Fig. 7, not zero occasion being judged to be by rotation detecting circuit 11 detected rotating speeds, because brake unit 10 slides, so advance to the step S18 of Fig. 7, the braking force that is judged to be brake unit 10 with belt tension monitor unit 13 is unusual, and supervisory work finishes.
As mentioned above, belt tension monitor unit 70 according to above-mentioned another example, because predict the time that changes to the use boundary from timeliness by the belt tension state of regular supervision strap drive body 4, can be in examination planning schedule and reception and registration before the use boundary for the indication of maintenance operator, so can carry out preventive maintenance.
Have again, belt tension monitor unit 7 according to above-mentioned each example, 70, because under the state of the braking that keeps brake unit 10, can mechanically monitor the belt tension state of strap drive body 4 from the variation of the torque instruction output frequency when drive motor 2 gives torque (inverter output frequency), do not need on the S. A. of strap drive body drive division, speed detector to be set as prior art, the constraint element of rotation of the S. A. of restraint strap transmission body drive division perhaps is set, so can seek the attenuating of cost and the raising of the homework precision that belt tension monitors.
Claims (1)
1. the belt tension monitor unit of a device of passenger conveyor, it monitors the rotation of the drive motor that is provided with in reductor is delivered in the Machine Room of device of passenger conveyor the tension force of strap drive body is characterized in that,
Have: the torque instruction unit that sends the torque instruction of the driving that is used to control described drive motor; Monitor the monitor unit of the activation bit of the described drive motor of exporting by the torque instruction of this torque instruction unit; On the S. A. of described reductor, fixedly brake the brake unit of the rotation of described reductor; Detect the rotation detecting circuit of the slew mode of described reductor; Control the action of described brake unit and the information of described rotation detecting circuit and described monitor unit that monitors is controlled the driving device controls unit of described torque instruction unit; And belt tension monitor unit, this belt tension monitor unit, keeping by described brake unit under the non-rotary state of described strap drive body, by sending order driving described drive motor, do not have that band slides and the output frequency of described monitor unit changes then judge that having band to slide monitors the belt tension state of described strap drive body if judge if the output frequency of described monitor unit is constant from described driving device controls unit to described torque instruction unit.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007-005746 | 2007-01-15 | ||
| JP2007005746 | 2007-01-15 | ||
| JP2007005746A JP4928278B2 (en) | 2007-01-15 | 2007-01-15 | Belt tension monitoring device for passenger conveyors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101224844A CN101224844A (en) | 2008-07-23 |
| CN101224844B true CN101224844B (en) | 2010-06-02 |
Family
ID=39697485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100015938A Active CN101224844B (en) | 2007-01-15 | 2008-01-14 | Belt teonsion mornitoring device for passenger conveying apparatus |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4928278B2 (en) |
| CN (1) | CN101224844B (en) |
| HK (1) | HK1124032A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5095791B2 (en) * | 2010-09-09 | 2012-12-12 | 株式会社日立ビルシステム | Passenger conveyor handrail driving force diagnosis device and handrail driving force diagnosis method |
| CN102167257A (en) * | 2011-05-31 | 2011-08-31 | 苏州富士电梯有限公司 | Host machine safety device of escalator or moving pavement |
| CN102602758A (en) * | 2011-12-09 | 2012-07-25 | 江南嘉捷电梯股份有限公司 | Braking distance overrun testing device on escalator or moving walk |
| JP2014105036A (en) * | 2012-11-22 | 2014-06-09 | Hitachi Building Systems Co Ltd | Elevator door control device |
| JP6537446B2 (en) * | 2015-12-10 | 2019-07-03 | 株式会社日立製作所 | Passenger conveyor |
| JP6806228B1 (en) * | 2019-12-25 | 2021-01-06 | トヨタ自動車株式会社 | Vehicle control device |
| JPWO2022079885A1 (en) * | 2020-10-16 | 2022-04-21 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001032909A (en) * | 1999-07-16 | 2001-02-06 | Nec Niigata Ltd | Belt driving device |
| CN1428282A (en) * | 2001-12-28 | 2003-07-09 | 宝山钢铁股份有限公司 | Method for controlling belt tension by using belt running speed rate |
| CN1657753A (en) * | 2004-02-03 | 2005-08-24 | 三菱扶桑卡客车株式会社 | Adjusting device of belt tension |
| WO2005109111A1 (en) * | 2004-05-06 | 2005-11-17 | Sortex Limited | Conveyor belt system |
| WO2006095045A1 (en) * | 2005-03-09 | 2006-09-14 | Kone Corporation | Handrail for a travelator, escalator or moving ramp and methods for mounting a handrail belt on a handrail and removing from a handrail |
| CN2841589Y (en) * | 2005-09-27 | 2006-11-29 | 中国矿业大学 | Numerical control winch and oil cylinder type hydraulic tensioning device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10337068A (en) * | 1997-05-30 | 1998-12-18 | Murata Mach Ltd | Drive system for thread working machine |
| JPH11310380A (en) * | 1998-04-27 | 1999-11-09 | Hitachi Building Systems Co Ltd | Belt tension abnormality diagnostic device for passenger conveyor |
| JP3330543B2 (en) * | 1998-07-17 | 2002-09-30 | 株式会社日立ビルシステム | Belt diagnostic device for passenger conveyor drive |
| JP4244620B2 (en) * | 2002-11-21 | 2009-03-25 | フジテック株式会社 | Drive unit maintenance device |
| JP4343024B2 (en) * | 2004-05-17 | 2009-10-14 | 三菱電機ビルテクノサービス株式会社 | Passenger conveyor equipment |
-
2007
- 2007-01-15 JP JP2007005746A patent/JP4928278B2/en active Active
-
2008
- 2008-01-14 CN CN2008100015938A patent/CN101224844B/en active Active
-
2009
- 2009-01-19 HK HK09100513.9A patent/HK1124032A1/en unknown
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001032909A (en) * | 1999-07-16 | 2001-02-06 | Nec Niigata Ltd | Belt driving device |
| CN1428282A (en) * | 2001-12-28 | 2003-07-09 | 宝山钢铁股份有限公司 | Method for controlling belt tension by using belt running speed rate |
| CN1657753A (en) * | 2004-02-03 | 2005-08-24 | 三菱扶桑卡客车株式会社 | Adjusting device of belt tension |
| WO2005109111A1 (en) * | 2004-05-06 | 2005-11-17 | Sortex Limited | Conveyor belt system |
| WO2006095045A1 (en) * | 2005-03-09 | 2006-09-14 | Kone Corporation | Handrail for a travelator, escalator or moving ramp and methods for mounting a handrail belt on a handrail and removing from a handrail |
| CN2841589Y (en) * | 2005-09-27 | 2006-11-29 | 中国矿业大学 | Numerical control winch and oil cylinder type hydraulic tensioning device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4928278B2 (en) | 2012-05-09 |
| CN101224844A (en) | 2008-07-23 |
| HK1124032A1 (en) | 2009-07-03 |
| JP2008169020A (en) | 2008-07-24 |
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