WO2007080890A1 - Dispositif pour detecter une direction de fonctionnement d’un transporteur de passagers - Google Patents

Dispositif pour detecter une direction de fonctionnement d’un transporteur de passagers Download PDF

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Publication number
WO2007080890A1
WO2007080890A1 PCT/JP2007/050166 JP2007050166W WO2007080890A1 WO 2007080890 A1 WO2007080890 A1 WO 2007080890A1 JP 2007050166 W JP2007050166 W JP 2007050166W WO 2007080890 A1 WO2007080890 A1 WO 2007080890A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotating
rotating machine
rotating body
passenger conveyor
outer peripheral
Prior art date
Application number
PCT/JP2007/050166
Other languages
English (en)
Japanese (ja)
Inventor
Kouji Sugiura
Original Assignee
Toshiba Elevator Kabushiki Kaisha
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Elevator Kabushiki Kaisha filed Critical Toshiba Elevator Kabushiki Kaisha
Priority to CN2007800019684A priority Critical patent/CN101365644B/zh
Publication of WO2007080890A1 publication Critical patent/WO2007080890A1/fr
Priority to HK09106304.9A priority patent/HK1127329A1/xx

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B25/00—Control of escalators or moving walkways

Definitions

  • the present invention relates to an improvement in a driving direction detection device for a passenger conveyor.
  • Passenger conveyors such as escalators often employ rotating machines such as electric motors that can rotate forward and reverse as drive devices.
  • rotating machines such as electric motors that can rotate forward and reverse as drive devices.
  • switching from ascending operation to descending operation or from descending operation to ascending operation is performed depending on the time zone and the flow direction of passengers. As a result, operational efficiency is improved.
  • an operation direction detection device is incorporated in the rotating shaft of the rotating machine, that is, the output shaft.
  • a conventional driving direction detection device has a circular rotating body that rotates in conjunction with the rotation of a rotating machine, and one end surface of a rotatable detection piece is in sliding contact with the outer peripheral surface of the rotating body. Switch.
  • the operation direction is detected by utilizing the fact that the direction of the contact piece that rotates and tilts differs between normal rotation and reverse rotation of the rotating machine. If the switcher detects that the rotating machine is rotating in the direction opposite to the intended direction, the safety device is activated immediately and the operation is controlled to be stopped by turning off the power. (See Patent Document 1.) o
  • FIG. 1 is a side view of an escalator provided with a conventional driving direction detection device.
  • the step chain 2 is connected to the upper floor and the lower floor in an endless manner.
  • the step chain 2 functions to circulate and move the step 1 by being wound around the step sprockets 31 and 32 on the upper and lower floors.
  • the step sprockets 31, 32 are driven by a rotating machine 4 which is a driving device arranged on the upper floor side.
  • Drive sprocket 5 connected to output shaft 4a of rotating machine 4 and upper step
  • the drive sprocket 6 linked to the procket 31 is connected by a drive chain 7.
  • the output shaft 4a of the rotating machine 4 is rotated by being decelerated by the speed reducer.
  • step 1 By the reversing operation of the rotating machine 4 capable of forward and reverse rotation, the step 1 is switched in the opposite direction and proceeds.
  • FIG. 2 is an enlarged view of the main part of FIG. 1
  • FIG. 3 is an enlarged right side view of FIG. 4 is a cross-sectional view taken along line AA in FIG.
  • the driving direction detection device 8 incorporated in the output shaft 4 a of the rotating machine 4 rotates in conjunction with the rotation of the rotating machine 4.
  • the driving direction detection device 8 is incorporated coaxially with the rotation center P of the rotating machine 4.
  • the driving direction detection device 8 is composed of a drum-shaped rotating body 81 and a switch 82 having a circular outer peripheral shape and a concave portion 8 la toward a part of the outer surface.
  • the switch 82 has a detection piece 821 that can rotate in the direction of the arrow X while sliding opposite to the outer peripheral surface of the rotating body 81.
  • the detection piece 821 of the switch 82 is rotatable in the arrow X direction around a rotation shaft 821a provided at the center in the longitudinal direction.
  • the detection piece 821 has a roller 821b at the upper end of one end thereof, which is in contact with the outer peripheral surface of the rotating body 81 and rotates as the rotating body 81 rotates.
  • the detection piece 821 is locked by the recess 81a and rotates, so that it is guided and tilted in the rotating direction of the rotating body 81. Therefore, the detection piece 821 is tilted in either the right direction or the left direction corresponding to the rotation direction of the rotating body 81, that is, the rotation direction of the rotating machine 4, and the state (posture) continues thereafter.
  • Limit switches 823a and 823b are arranged on the base 822 so as to form a pair at the left and right positions of the lower end of the detection piece 821 as shown in the figure. Since it is operated by the tilted detection piece 821, the corresponding limit switches 823a and 823b are operated according to the rotation direction of the rotating body 81.
  • the detection piece 821 is the limit switch 823a. Actuated Rotate in the direction of Therefore, it is possible to know that the rotating machine 4 rotates in the R direction in the figure by the signal output from the limit switch 823a.
  • the detection piece 821 slidably contacting the rotating body 81 at the tip is urged by a biasing means such as a weak spring member so that the longitudinal direction is always perpendicular. It has been.
  • the step 1 on which the passenger is placed moves up and down due to the circular movement of the step chain 2.
  • the escalator performs an ascending operation due to the rotation in the direction indicated by the arrow R shown in FIG. From the output signal, it is detected that the operation is started in a direction different from the commanded operation direction. For this reason, it is controlled so that the safety device is activated and stopped immediately for safety.
  • Patent Document 1 Japanese Patent Laid-Open No. 3-279183
  • a conventional passenger conveyor driving direction detection device includes a switch 82 and a rotatable detection piece 821.
  • the tip (821b) force of the detection piece 821 rotates while being locked by the recess 81a of the rotating rotating body 81, and performs a switching operation corresponding to the rotating direction.
  • the rotating body 81 Since the rotating body 81 is integrally formed with the output shaft 4a via the speed reducer, it rotates relatively slowly. However, the tip end of the detection piece 821 that continues to tilt falls into the concave portion 81a that rotates every rotation of the rotating body 81 at the tilted position, and generates an impact sound. Therefore, the conventional passenger conveyor driving direction detection device generates noise by the impact sound that the tip of the detection piece 821 falls into the recess 81a. For this reason, improvement has been desired.
  • an object of the present invention is to provide a passenger conveyor driving direction detection device capable of reducing noise generation.
  • the present invention has been made to solve the above-described conventional problems, and a first aspect of the present invention is connected to a rotating machine that drives a plurality of endless treads to circulate and move.
  • the rotating machine rotates in conjunction with the rotation of the rotating machine and has a biased center position with respect to the rotating shaft of the rotating machine.
  • a rotating body having a circular outer peripheral shape in a direction orthogonal to the rotating shaft, and one end surface of the rotatable detection piece are in sliding contact with the outer peripheral surface of the rotating body, the center position of the rotating body and the rotating shaft
  • a switch that performs an operation corresponding to the switching of the rotation direction of the rotating machine.
  • a second aspect of the present invention is a driving direction detection device for a passenger conveyor that is connected to a rotating machine that drives a plurality of endless treads to circulate and can detect the rotating direction of the rotating machine. It rotates in conjunction with the rotation of the rotating machine, and the outer peripheral shape in the direction perpendicular to the rotating shaft of the rotating machine is rotatable around the rotating shaft and the outer peripheral surface of the rotating body. And a switch that performs an operation corresponding to switching of the rotating direction of the rotating machine based on a difference in diameter to the outer periphery of the rotating body.
  • a third aspect of the present invention is a driving direction detection device for a passenger conveyor that is connected to a rotating machine that drives a plurality of endless treads to circulate and can detect the rotating direction of the rotating machine.
  • a rotating body that rotates in conjunction with the rotation of the rotating machine, and whose outer peripheral shape in a direction perpendicular to the rotating shaft of the rotating machine is a part of the circumference centered on the rotating shaft cut out linearly;
  • One end of a rotatable detection piece is in sliding contact with the outer peripheral surface of the rotating body, and performs an operation corresponding to the switching of the rotating direction of the rotating machine based on the difference in diameter to the outer periphery of the rotating body. It comprises.
  • a fourth aspect of the present invention is a driving direction detection device for a passenger conveyor that is connected to a rotating machine that drives a plurality of endless treads so as to circulate and that can detect the rotating direction of the rotating machine.
  • the outer periphery of the rotating machine rotates in conjunction with the rotation of the rotating machine, and the outer peripheral shape in the direction perpendicular to the rotating shaft of the rotating machine is rotatable about the rotating shaft and the outer peripheral surface of the rotating body.
  • One end of the detection piece is in sliding contact with the outer diameter of the rotating body.
  • a switch that performs an operation corresponding to switching of the rotating direction of the rotating machine based on the difference.
  • the rotating body is eccentric and rotates because the rotating center of the rotating body and the rotating center of the rotating shaft are offset. .
  • the detection piece whose one end faces and slides on the outer peripheral surface of the rotating body rotating eccentrically is inclined in accordance with the rotation of the rotating body. Since the inclination direction differs depending on the rotation direction of the rotating body, the rotation direction of the rotating machine, that is, the operation direction of the passenger conveyor can be detected.
  • the one end of the detection piece smoothly slides oppositely while closely contacting along the circular outer peripheral surface of the rotator with no irregularities, so that conventional noise generation is avoided.
  • the passenger conveyor driving direction detecting device includes a rotating body that rotates coaxially with the rotating shaft, an elliptical shape, or a portion on a circumference. It was formed into a linearly cut shape or a polygonal shape. For this reason, as in the first aspect of the invention, the detection piece that inclines in the direction corresponding to the rotation direction of the rotating body slides smoothly with its one end in close contact with the outer peripheral surface. As a result, noise generation is avoided.
  • FIG. 1 is an overall configuration diagram of an escalator equipped with a conventional rotation direction detection device.
  • FIG. 2 is an enlarged cross-sectional view showing a portion of the escalator shown in FIG. 1 where a rotation direction detection device is mounted.
  • FIG. 3 is an enlarged right side view of the main part of FIG.
  • FIG. 4 is a cross-sectional view taken along the line AA in FIG.
  • FIG. 5 Fig. 5 (a) is a block diagram showing an embodiment of a passenger conveyor rotation direction detecting device according to the present invention, and Fig. 5 (b) is a cross-sectional view taken along line BB in Fig. 5 (a).
  • FIG. 5 is a block diagram showing an embodiment of a passenger conveyor rotation direction detecting device according to the present invention, and Fig. 5 (b) is a cross-sectional view taken along line BB in Fig. 5 (a).
  • FIGS. 6 (a) and 6 (b) are operation explanatory diagrams of the apparatus shown in FIGS. 5 (a) and 5 (b).
  • FIG. 7 is a sectional view showing a state in which the apparatus shown in FIGS. 5 (a) and 5 (b) is attached with another rotating body.
  • FIG. 8 is a cross-sectional view showing a state in which the apparatus shown in FIGS. 5 (a) and 5 (b) is mounted with another rotating body.
  • FIG. 9 is a cross-sectional view showing a state in which the apparatus shown in FIGS. 5 (a) and 5 (b) is mounted with another rotating body.
  • FIG. 5 (a) is an enlarged right side view of the main part corresponding to FIG. 3, and FIG. 5 (b) is a cross-sectional view taken along line BB in FIG. 5 (a).
  • the driving direction detection device 8 of this embodiment is similar to the conventional case in that the output shaft 4a of the rotating machine 4 via the speed reducer, that is, the rotation Built into the shaft.
  • the driving direction detection device 8 is configured so that a drum-shaped rotating body 81 that rotates in conjunction with the rotation of the rotating machine 4 and one end portion of the detection piece 821 are in sliding contact with the outer peripheral surface of the rotating body 81. It consists of 82 switches.
  • a rotating body 81 having a circular outer peripheral shape is attached in a direction orthogonal to the axial direction of the output shaft 4a of the rotating machine 4. ing.
  • the rotating body 81 is attached such that its center p is offset from the center P of the output shaft 4a of the rotating machine 4 by a distance ⁇ P.
  • the peripheral portion of the rotating body 81 that comes into contact with the detection piece 821 is bordered by a synthetic resin member 81b.
  • the detection piece 821 of the switch 82 can rotate or swing in the direction of the arrow X around the rotation shaft 821a. Then, the center of the rotating body 81 deviated from the rotational center P of the rotating machine 4 by a distance ⁇ p position force When positioned right above the rotational center P (upward in the figure), the posture of the detection piece 821 is The longitudinal direction is vertical. At this time, the tip of the detection piece 821 (that is, the roller 821b) is disposed so as to contact the outer peripheral surface of the rotating body 81.
  • FIG. 6 is an explanatory diagram of the operation of the driving direction detection device 8. From the state shown in FIG. 6 (a), the rotating body 8 1 (that is, the rotating machine 4) moves in the direction indicated by the arrow R (counterclockwise). ), The detection piece 821 rotates and the limit switch 823a is activated (ON) as shown in Fig. 6 (b).
  • the limit switch 823a repeats the ON-OFF operation with the detection piece 821 swinging, and transmits the repeated signal. To do. For this reason, the receiving side that has received the signal from the limit switch 823a can detect that the rotating machine 4 is rotating counterclockwise (arrow R direction).
  • one end of the detection piece 821 is in close contact with the circular outer peripheral surface of the rotator 81 with no irregularities, and operates the limit switches 823a and 823b with smooth opposing sliding. For this reason, conventional noise generation is avoided.
  • the output ON-OFF signal from the limit switch 8 23a should be transmitted and supplied, but if the output from the limit switch 82 3b is ON-OFF If a signal is transmitted and supplied, it is detected that operation has started in a direction different from the commanded operation direction. For this reason, the safety device is controlled to operate and stop immediately for safety.
  • the swing direction of the detection piece 821 is different corresponding to the rotation direction of the rotating body 81 (rotating machine 4). For this reason, the center p of the circular rotating body 81 and the center P of the output shaft 4a, which is the rotating shaft, are attached so as to be deviated by ⁇ . However, even when the center p of the rotating body 81 is aligned with the center P of the output shaft 4a, it is assumed that the swing direction of the detection piece 821 differs depending on the rotating direction of the rotating body 81 (rotating machine 4). Can be output.
  • FIGS. 7 to 9 are cross-sectional views corresponding to FIG. 5 (b).
  • FIG. 7 shows that the rotating body 81 has an elliptical shape, and its center p is defined as the output shaft 4a. It shows the state of being attached in a state where it is aligned with the center P.
  • FIG. 8 shows a case where the rotating body 81 has a shape obtained by cutting out a part of the circumference in a straight line
  • FIG. 8 shows a case where the rotating body 81 has a polygonal shape.
  • the center p of the rotating body 81 is attached so as to coincide with the center P of the output shaft 4a.
  • the center p of the rotator 81 coincides with the center P of the output shaft 4a.
  • one end portion of the rotatable detection piece 821 is in sliding contact with the outer peripheral surface of the rotating body 81 and periodically changes in the difference in diameter from the center p (P) to the outer periphery of the rotating body 81. In response to this, smooth swinging corresponding to the rotating direction of the rotating body 81 is performed. In either case, a switch output signal in a direction corresponding to the rotation direction of the rotating machine 4 can be transmitted.
  • the rotating body 81 is configured such that the contact portion with the detection piece 821 is bordered by the synthetic resin member 81b. Furthermore, the roller 821b at the tip of the detection piece 821 that slides and rotates opposite to the synthetic resin member 81b is also formed of the synthetic resin member in the same manner, so that noise generation can be further reduced.
  • the rotation body is eccentric and rotates because the rotation center of the rotation body and the rotation center of the rotation shaft are offset.
  • the detecting piece whose one end faces and slides on the outer peripheral surface of the rotating body rotating eccentrically is inclined in accordance with the rotation of the rotating body. Since the inclination direction differs depending on the rotation direction of the rotating body, the rotation direction of the rotating machine, that is, the operation direction of the passenger conveyor can be detected.
  • the one end of the detection piece smoothly slides oppositely while closely contacting along the circular outer peripheral surface of the rotator with no irregularities, so that conventional noise generation is avoided.

Landscapes

  • Escalators And Moving Walkways (AREA)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)

Abstract

Dans le cadre de la présente invention, le centre (p) d’un corps rotatif (81) d’un dispositif de détection de direction de fonctionnement (8) et le centre (P) de rotation d’un arbre de sortie (arbre rotatif)(4a) relié à une machine rotative (4) sont séparés (ΔP) l’un de l’autre. Ceci force le corps rotatif (81) à tourner de façon excentrique et une pièce de détection (821) oscille dans la direction qui correspond à la direction de la rotation. L’oscillation permet la détection de la direction de rotation de la machine rotative (4). Une extrémité de la pièce de détection (821) fait face et coulisse sur la surface périphérique extérieure circulaire du corps rotatif (81). Du fait que la surface périphérique extérieure ne possède aucune irrégularité et l’extrémité de la pièce de détection (821) coulisse sans heurts le long de la surface tout en restant en contact intime avec la surface, le bruit est réduit.
PCT/JP2007/050166 2006-01-10 2007-01-10 Dispositif pour detecter une direction de fonctionnement d’un transporteur de passagers WO2007080890A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2007800019684A CN101365644B (zh) 2006-01-10 2007-01-10 乘客输送机的运行方向检测装置
HK09106304.9A HK1127329A1 (en) 2006-01-10 2009-07-14 Device for detecting operation direction of passenger conveyor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006-002527 2006-01-10
JP2006002527A JP4986455B2 (ja) 2006-01-10 2006-01-10 乗客コンベアの運転方向検出装置

Publications (1)

Publication Number Publication Date
WO2007080890A1 true WO2007080890A1 (fr) 2007-07-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/050166 WO2007080890A1 (fr) 2006-01-10 2007-01-10 Dispositif pour detecter une direction de fonctionnement d’un transporteur de passagers

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JP (1) JP4986455B2 (fr)
CN (1) CN101365644B (fr)
HK (1) HK1127329A1 (fr)
WO (1) WO2007080890A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3569559A1 (fr) * 2018-05-16 2019-11-20 Otis Elevator Company Dispositif de sécurité de courroie et dispositif de transport de personnes comportant un dispositif de sécurité de courroie

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103407870B (zh) * 2013-07-15 2015-04-22 苏州新达电扶梯部件有限公司 一种手扶带走向检测装置
CN104340835B (zh) 2013-07-26 2016-12-07 上海三菱电梯有限公司 乘客输送设备的安全检测装置及其实现方法
CN104528507B (zh) * 2014-12-26 2016-11-02 广东省特种设备检测研究院珠海检测院 自动扶梯综合检测方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6188978U (fr) * 1984-11-16 1986-06-10
JPH03264493A (ja) * 1990-03-14 1991-11-25 Toshiba Corp エスカレータの駆動装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6188978U (fr) * 1984-11-16 1986-06-10
JPH03264493A (ja) * 1990-03-14 1991-11-25 Toshiba Corp エスカレータの駆動装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3569559A1 (fr) * 2018-05-16 2019-11-20 Otis Elevator Company Dispositif de sécurité de courroie et dispositif de transport de personnes comportant un dispositif de sécurité de courroie
US10689231B2 (en) 2018-05-16 2020-06-23 Otis Elevator Company Belt safety device and people conveyor with a belt safety device

Also Published As

Publication number Publication date
JP4986455B2 (ja) 2012-07-25
HK1127329A1 (en) 2009-09-25
JP2007182315A (ja) 2007-07-19
CN101365644A (zh) 2009-02-11
CN101365644B (zh) 2010-06-02

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