WO2006022292A1 - 乗客コンベアの踏段移動検出装置 - Google Patents
乗客コンベアの踏段移動検出装置 Download PDFInfo
- Publication number
- WO2006022292A1 WO2006022292A1 PCT/JP2005/015341 JP2005015341W WO2006022292A1 WO 2006022292 A1 WO2006022292 A1 WO 2006022292A1 JP 2005015341 W JP2005015341 W JP 2005015341W WO 2006022292 A1 WO2006022292 A1 WO 2006022292A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- detection device
- detector
- movement
- wheel
- drive wheel
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B29/00—Safety devices of escalators or moving walkways
Definitions
- the present invention relates to a step movement detection device for passenger conveyors such as walkways that move escalators.
- Passenger conveyors such as moving escalators move a passenger from one boarding gate to the other boarding gate by connecting and circulating a plurality of steps endlessly with a step chain. is there.
- a failure occurs in the movement status of a step, that is, when the step accelerates or decelerates unexpectedly due to the influence of any force, for the safety of passengers or to prevent damage to passenger conveyor components, It is desirable to be able to detect automatically.
- a conventional step movement detection device that immediately detects an abnormality in order to stop the traveling of the passenger conveyor when an abnormality occurs in the traveling speed of the passenger conveyor (step) will be described.
- a conventional step movement detection device is described in Japanese Patent Laid-Open No. 7-315746.
- This step movement detection device includes a motor as a driving source for the passenger conveyor at one end of the truss of the passenger conveyor. Adjacent to the motor, a reduction gear having an input shaft coaxial with the output shaft of the motor and an output shaft parallel to the input shaft is provided. A small drive sprocket that uses this output shaft as a rotating shaft is attached and fixed to the output shaft of this reducer. A drive chain is engaged with the small drive sprocket, and the drive force is transmitted to the drive wheels via the drive chain force drive large sprocket to circulate the steps.
- a detection shaft for detecting the traveling speed is attached and fixed coaxially with the input shaft of the speed reducer, and a detector that operates by centrifugal force using the rotation of the detection shaft is provided, and the rotational speed of the detection shaft It was the structure which detects.
- the vehicle travels coaxially with the input shaft of the speed reducer.
- a detection shaft for detecting the traveling speed is fixedly mounted, and the rotation speed of the detection shaft is detected by a detector that operates by centrifugal force using the rotation of the detection shaft. Therefore, since it is detected by a detector mounted coaxially with the output shaft of the motor, which is different from the rotation shaft of the step drive wheel that drives the step chain connecting the steps, the gap between the step drive wheel and the step chain is not detected. Due to errors caused by the installed speed reducer and drive chain, the actual speed of the step may not match, and the detection error was significant.
- the detector is a detector that operates by centrifugal force, the detection accuracy is always high in this respect as well. Furthermore, it is necessary to newly attach and fix the detection shaft for detection by the detector so as to be coaxial with the rotation shaft of the driving machine, resulting in an increase in cost. Furthermore, since the detection shaft is not provided in the existing passenger conveyor, it is necessary to remodel the installation of the detection shaft later, and it is practically difficult to provide the detection device. there were.
- the present invention advantageously solves the above-described problem, and can be easily attached to an existing passenger conveyor with a small detection error.
- An object of the present invention is to provide a passenger conveyor step movement detection device capable of detecting the abnormality.
- the step movement detection device for a passenger conveyor includes a step drive wheel around which an endless step chain that connects a plurality of steps is wound, or a rotation that is coaxially attached and fixed to the rotation shaft of the step drive wheel.
- a detector provided close to the member for detecting the rotational movement of the step drive wheel or the rotary member, and a detection for detecting a change in the rotational speed of the step drive wheel or the rotary member based on a signal of the detector force.
- an apparatus main body is provided close to the member for detecting the rotational movement of the step drive wheel or the rotary member, and a detection for detecting a change in the rotational speed of the step drive wheel or the rotary member based on a signal of the detector force.
- the passenger conveyor step movement detecting device of the present invention includes a step drive wheel that drives a step chain that connects steps, or a rotating member that is coaxially mounted and fixed to the rotation shaft of the step drive wheel. Since the rotational movement is detected! /, The detection error is small because there is no step chain or speed reducer between the step and the detector.
- a detector that detects the rotational movement of the drive wheels can be a simple detector such as a proximity sensor, it can be easily attached to an existing passenger conveyor.
- FIG. 1 is a plan view showing a main part of a machine room of a passenger conveyor provided with a step movement detecting device according to an embodiment of the present invention.
- FIG. 2 is a front view of FIG.
- FIG. 1 is a plan view showing a main part of a machine room of a passenger conveyor provided with a step movement detecting device according to an embodiment of the present invention
- FIG. 2 is a front view of FIG. 1 and 2
- a motor 2 as a drive source of the escalator is provided at one end of the upper truss 1 of the escalator as a passenger conveyor.
- a speed reducer 3 is provided adjacent to the motor 2.
- the speed reducer 3 includes an input shaft 3a that is coaxial with the output shaft of the motor 2 and an output shaft 3b.
- a drive small sprocket 4 that uses the output shaft 3b as a rotation shaft is connected to the output shaft of the speed reducer 3. It is fixed to 3b.
- a drive chain 6 is applied to the drive small sprocket 4 and the drive large sprocket 5 provided in parallel with the drive small sprocket 4 so as to drive the drive force from the motor 2 to the drive chain 6 Is transmitted to the driving large sprocket 5 via.
- a step sprocket 10 as a step drive wheel that is driven by winding a step chain 9 connected to the step roller 8a of the step 8 is fixedly attached to the rotating shaft 7 to which the large driving sprocket 5 is attached and fixed.
- the driving force from the motor 2 is transmitted by rotating together with the large driving sprocket 5.
- the rotating shaft 7 is a component of a driving chain safety device that mechanically stops the rotation of the step sprocket 10 and prevents the step 8 from dropping when the drive chain 6 is loosened or broken.
- a ratchet wheel 11 is attached and fixed near the end of the rotary shaft 7. As shown in FIG. 2, the ratchet wheel 11 is provided with a tooth-like notch on the outer peripheral portion thereof, and engages with the brake latch 12 when a rotational force in the direction opposite to the normal driving direction is generated on the rotary shaft 7. At the same time, the rotation of the rotating shaft 7 in the direction opposite to the normal driving direction is prevented.
- a proximity sensor 21 is brought close to the teeth provided on the outer peripheral portion of the ratchet wheel 11.
- the support 22 is fixed to the longitudinal beam la of the truss 1.
- the proximity sensor 21 outputs a detection signal to the main body of the step movement detection device each time a plurality of teeth provided at an equal pitch on the outer periphery approach the proximity sensor 21 by the rotational movement of the ratchet wheel 11.
- the step movement detection device body counts the detection signal, and counts the number of teeth of the ratchet wheel 11 obtained in advance and the detection signal for the number of teeth of the ratchet wheel 11. From the time required, the rotational speed of the ratchet wheel 11 is calculated. Then, the rotational speed of the ratchet wheel 11 is monitored to detect that the rotational speed value has changed or that the rotational speed value has increased or decreased.
- the main body of the detection device can be provided in a control panel provided in the machine room, and can also be provided as a single function device in the operation control device of the passenger conveyor.
- the proximity sensor 21 is provided in the vicinity of the ratchet wheel 11 that is a rotating member attached to the rotating shaft 7 of the drive wheel. Since the tooth of the check wheel 11 is used as a detection piece to detect the rotational movement of the ratchet wheel 11, the movement speed of the step 8 can be detected without interposing the drive chain 6 or the speed reducer 3. It can be detected directly, and the detection error can be reduced.
- the proximity sensor 21 as a detector does not require extensive modification to be attached, and can be easily attached to an existing passenger conveyor.
- the force using the proximity sensor 21 as a detector.
- the detector of the present embodiment is not limited to the one using the proximity sensor 21, and for example, a photoelectric sensor may be used. it can. From the viewpoint of the life of the detector, a non-contact type detector such as a proximity sensor or a photoelectric sensor is preferable to a contact type detector such as a limit switch.
- a proximity sensor 21 as a detector is provided close to the teeth of the ratchet wheel 11, and the approach of each tooth by the rotational movement of the ratchet wheel 11 is performed.
- the object to be detected or the detection piece for detecting the rotational movement is not limited to the ratchet wheel 11.
- Proximity sensor 21 can be arranged in proximity, and the proximity sensor 21 can detect the rotational movement of the teeth of step sprocket 10.
- the movement speed of the step 8 is detected by the drive chain 6 and the speed reducer 3. Detection can be performed directly without intervening, and detection errors can be reduced. If the proximity sensor 21 is mounted at a radial position where the peripheral speed of the step sprocket 10 is equal to the movement speed of the step 8, the movement speed of the step 8 itself can be easily measured by a signal from the proximity sensor 21. It becomes possible.
- the proximity sensor 21 may be disposed in proximity to the driving large sprocket 5 so that the proximity sensor 21 can detect the rotational movement of the teeth of the driving large sprocket 5.
- the movement speed of the step 8 can be detected directly without interposing the drive chain 6 or the speed reducer 3, and the detection error can be reduced. can do.
- the proximity sensor 21 is disposed in proximity to the step roller 8a of the step 8 that moves together with the step chain 9 that is driven by being driven by the step driving wheel 10, so that the step opening roller 8a It is also possible to detect the rotational movement of the step roller 8a by using as a detection piece. By detecting the rotational movement of the step roller 8a, it is possible to directly detect the movement speed of the step 8 and fluctuations in the movement speed.
- the large driving sprocket 5 and the step sprocket 10 are fastened and fixed to each other using bolts and nuts, and the ratchet wheel 11 and the step sprocket 10 are similarly bolted to each other. It may be fastened and fixed using a nut. Therefore, the bolt or nut that fastens and fixes the adjacent sprocket is used as a detection piece, and the proximity sensor 21 is arranged close to the bolt or nut to detect the rotational movement of the bolt or nut. You can also.
- the bolts or nuts that fasten and fix the sprockets are also provided on existing passenger conveyors, so the rotational speed of the rotating shaft 7 can be detected without newly installing a detection piece for detecting rotational movement.
- the step movement detection device of the present invention has newly added detection pieces of the proximity sensor 21 and other detectors. Needless to say, it can be installed on ratchet wheels, 11-step sprockets 10 and drive sprockets 5! / ⁇ .
- the present invention relates to a step movement detection device for a passenger conveyor such as a moving walkway.
- the detector detects the rotational movement of a step driving wheel that drives a step chain that connects the steps or a rotating member that is coaxially mounted and fixed to the rotation shaft of the step driving wheel. Therefore, the detection error is small because there is no step chain or speed reducer between the step and the detector.
- the detector that detects the rotational movement of the drive wheels can use a simple detector such as a proximity sensor, it can be easily attached to an existing passenger conveyor.
Landscapes
- Escalators And Moving Walkways (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2005800276491A CN101006005B (zh) | 2004-08-24 | 2005-08-24 | 乘客输送机的阶梯移动检测装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004244011A JP2006062766A (ja) | 2004-08-24 | 2004-08-24 | 乗客コンベアの踏段移動検出装置 |
JP2004-244011 | 2004-08-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006022292A1 true WO2006022292A1 (ja) | 2006-03-02 |
Family
ID=35967501
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/015341 WO2006022292A1 (ja) | 2004-08-24 | 2005-08-24 | 乗客コンベアの踏段移動検出装置 |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP2006062766A (ja) |
CN (1) | CN101006005B (ja) |
TW (1) | TW200610724A (ja) |
WO (1) | WO2006022292A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102838035A (zh) * | 2012-09-18 | 2012-12-26 | 广州市特种机电设备检测研究院 | 扶梯运行速度和运行方向监测装置 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101264843B (zh) * | 2008-03-05 | 2010-06-02 | 上海中业电梯有限公司 | 自动扶梯运行安全监控方法及装置 |
JP2012144351A (ja) * | 2011-01-13 | 2012-08-02 | Toshiba Elevator Co Ltd | 乗客コンベア |
CN102659013A (zh) * | 2012-05-15 | 2012-09-12 | 大连连港电扶梯成套设备有限公司 | 一种自动扶梯/自动人行道的安全监测及控制系统 |
CN103010920B (zh) * | 2012-12-25 | 2015-03-18 | 江南嘉捷电梯股份有限公司 | 自动扶梯或自动人行道的防逆转及防电机超速装置 |
CN103010919B (zh) * | 2012-12-25 | 2014-08-20 | 江南嘉捷电梯股份有限公司 | 自动扶梯或自动人行道上的防逆转及防电机超速装置 |
JP7362562B2 (ja) * | 2020-08-03 | 2023-10-17 | 東芝エレベータ株式会社 | 乗客コンベアのチェーン伸び検出装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63272771A (ja) * | 1987-04-30 | 1988-11-10 | 三菱電機株式会社 | 乗客コンベアの安全装置 |
JPS63315483A (ja) * | 1987-06-16 | 1988-12-23 | 三菱電機株式会社 | エスカレ−タの主軸ブレ−キ装置 |
JPH09510170A (ja) * | 1994-03-14 | 1997-10-14 | オーチス エレベータ カンパニー | 通行人運搬装置内の特定点を通過する踏段の回数の不規則性を検出するための装置 |
JP2001089059A (ja) * | 1999-09-20 | 2001-04-03 | Hitachi Ltd | エスカレータ |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3018915B2 (ja) * | 1994-08-26 | 2000-03-13 | 株式会社日立製作所 | 傾斜型乗客コンベア装置 |
-
2004
- 2004-08-24 JP JP2004244011A patent/JP2006062766A/ja active Pending
-
2005
- 2005-08-24 WO PCT/JP2005/015341 patent/WO2006022292A1/ja active Application Filing
- 2005-08-24 TW TW094128976A patent/TW200610724A/zh not_active IP Right Cessation
- 2005-08-24 CN CN2005800276491A patent/CN101006005B/zh not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63272771A (ja) * | 1987-04-30 | 1988-11-10 | 三菱電機株式会社 | 乗客コンベアの安全装置 |
JPS63315483A (ja) * | 1987-06-16 | 1988-12-23 | 三菱電機株式会社 | エスカレ−タの主軸ブレ−キ装置 |
JPH09510170A (ja) * | 1994-03-14 | 1997-10-14 | オーチス エレベータ カンパニー | 通行人運搬装置内の特定点を通過する踏段の回数の不規則性を検出するための装置 |
JP2001089059A (ja) * | 1999-09-20 | 2001-04-03 | Hitachi Ltd | エスカレータ |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102838035A (zh) * | 2012-09-18 | 2012-12-26 | 广州市特种机电设备检测研究院 | 扶梯运行速度和运行方向监测装置 |
Also Published As
Publication number | Publication date |
---|---|
CN101006005B (zh) | 2010-05-05 |
TWI299319B (ja) | 2008-08-01 |
CN101006005A (zh) | 2007-07-25 |
JP2006062766A (ja) | 2006-03-09 |
TW200610724A (en) | 2006-04-01 |
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