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WO2008068839A1 - Appareil ascenseur - Google Patents

Appareil ascenseur Download PDF

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Publication number
WO2008068839A1
WO2008068839A1 PCT/JP2006/324210 JP2006324210W WO2008068839A1 WO 2008068839 A1 WO2008068839 A1 WO 2008068839A1 JP 2006324210 W JP2006324210 W JP 2006324210W WO 2008068839 A1 WO2008068839 A1 WO 2008068839A1
Authority
WO
WIPO (PCT)
Prior art keywords
brake
control means
braking
brake control
emergency stop
Prior art date
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.)
Ceased
Application number
PCT/JP2006/324210
Other languages
English (en)
Japanese (ja)
Inventor
Takaharu Ueda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to KR1020097006786A priority Critical patent/KR101080601B1/ko
Priority to PCT/JP2006/324210 priority patent/WO2008068839A1/fr
Priority to JP2008548128A priority patent/JP5172695B2/ja
Priority to CN2006800560897A priority patent/CN101522553B/zh
Priority to EP06833965.4A priority patent/EP2058261B1/fr
Publication of WO2008068839A1 publication Critical patent/WO2008068839A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
    • B66B1/28—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical
    • B66B1/32—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on braking devices, e.g. acting on electrically controlled brakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/04—Driving gear ; Details thereof, e.g. seals
    • B66B11/08—Driving gear ; Details thereof, e.g. seals with hoisting rope or cable operated by frictional engagement with a winding drum or sheave
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures

Definitions

  • the present invention relates to an elevator apparatus that lifts and lowers one car by a plurality of hoisting machines.
  • Patent Document 1 Japanese Patent Publication No. 7-42063
  • the present invention has been made to solve the above-described problems, and provides an elevator apparatus capable of more appropriately decelerating and stopping a plurality of hoisting machines during emergency braking. With the goal.
  • An elevator apparatus includes a plurality of hoisting machines each having a brake device, a car that is lifted and lowered by the hoisting machine, and a plurality of brake control means for individually controlling the corresponding brake devices, Each brake control means detects the rotational state of the corresponding lifting machine during emergency braking, and controls the braking force of the corresponding brake device according to the detected rotational state.
  • the elevator apparatus according to the present invention includes a plurality of hoisting machines each having a brake device, a car that is lifted / lowered by the hoisting machine, and a brake control unit that controls the brake device. Then, the rotation state of any one lifting machine is detected, and the braking force of the braking device of at least two lifting machines is controlled according to the detected rotation state.
  • the elevator apparatus includes a plurality of hoisting machines each having a brake device, a car that is lifted and lowered by the hoisting machine, and a brake control means for controlling the brake device, and the brake control means includes an emergency brake. Occasionally, the driving state of the force is detected, and the braking force of at least two hoisting machine braking devices is controlled according to the detected driving state.
  • the elevator apparatus also includes a plurality of hoisting machines each having a brake device, a car that is lifted and lowered by the hoisting machine, a brake control means that controls the brake device, and an emergency stop command that detects the occurrence of an emergency stop command.
  • the emergency stop detection means disconnects the brake control means force of at least one lifting machine and immediately brakes the brake control means.
  • the braking force of the braking device of the hoisting machine that is the controlled object is controlled so that the deceleration of at least one hoisting machine that is the controlled object becomes the predetermined deceleration.
  • FIG. 1 A configuration diagram illustrating an elevator apparatus according to Embodiment 1 of the present invention.
  • FIG. 2 is a graph showing the rotational speed, deceleration, energizing command to the electromagnetic coil, and time variation of the electromagnetic coil current during emergency braking of one of the hoisting machines in FIG.
  • ⁇ 3 It is a block diagram showing an elevator apparatus according to Embodiment 2 of the present invention.
  • Fig. 4 shows the temporal change of the rotational speed, the energizing command to the electromagnetic coil, and the current of the electromagnetic coil of one of the hoisting machines of the elevator apparatus according to Embodiment 3 of the present invention. It is a graph.
  • FIG. 5 is a configuration diagram showing an elevator apparatus according to Embodiment 4 of the present invention.
  • FIG. 6 is a configuration diagram showing an elevator apparatus according to Embodiment 5 of the present invention.
  • FIG. 7 A configuration diagram illustrating an elevator apparatus according to Embodiment 6 of the present invention.
  • FIG. 8 is a configuration diagram showing an elevator apparatus according to Embodiment 7 of the present invention.
  • FIG. 1 is a configuration diagram showing an elevator apparatus according to Embodiment 1 of the present invention.
  • the force 1 and the counterweight 2 are suspended in the hoistway by the suspension means 3 and are lifted and lowered by the driving force of the first and second lifting machines 4 and 5.
  • the suspension means 3 includes at least one first main rope 6 and at least one second main rope 7. As the first and second main ropes 6 and 7, a rope having a circular cross section or a belt-like rope is used.
  • the first lifting machine 4 includes a first drive sheave 8, a first motor 9 that rotates the first drive sheave 8, and a first drive sheave 8 that is rotated together with the first drive sheave 8. And the first brake device 11 that brakes the rotation of the first brake wheel 10 and the first drive sheave 8.
  • the first brake device 11 includes a first brake shoe that is brought into contact with and separated from the first brake wheel 10, and a first brake spring that presses the first brake shoe against the first brake wheel 10. And a first electromagnet that is piled on the first brake spring and separates the first brake shoe from the first brake wheel 10.
  • the first electromagnet is provided with a first electromagnetic coil.
  • the second hoisting machine 5 includes a second drive sheave 12, a second motor 13 that rotates the second drive sheave 12, and a second brake that rotates together with the second drive sheave 12.
  • a second brake device 15 is provided for braking the rotation of the vehicle 14, the second brake vehicle 14, and the second drive sheave 12.
  • the second brake device 15 includes a second brake shoe that is brought into contact with and separated from the second brake wheel 14, a second brake spring that presses the second brake shoe against the second brake wheel 14, and And a second electromagnet that is piled on the second brake spring and separates the second brake shoe from the second brake wheel 14.
  • the second electromagnet is provided with a second electromagnetic coil.
  • a first main rope 6 is wound around the first drive sheave 8.
  • Second drive sheave 12 The second main rope 7 is wound around.
  • the first and second brake wheels 10 and 14 for example, a brake disc or a brake drum is used.
  • the first motor 9 is provided with a first speed detector 16.
  • the signal of the first speed detector 16 is input to the first brake control means 17.
  • the first brake control means 17 controls the first brake device 11 based on the signal from the first speed detector 16. That is, the first brake control means 17 energizes and deactivates the first electromagnetic coil of the first brake device 11 according to the signal from the first speed detector 16.
  • the second motor 9 is provided with a second speed detector 18.
  • the signal of the second speed detector 18 is input to the second brake control means 19.
  • the second brake control means 19 controls the second brake device 15 based on the signal from the second speed detector 18. That is, the second brake control means 19 energizes / deactivates the second electromagnetic coil of the second brake device 15 according to the signal from the second speed detector 18.
  • Fig. 2 shows the rotational speed, deceleration, energization command to the electromagnetic coil, and time variation of the electromagnetic coil current during emergency braking of one of the hoisting machines 4, 5 in Fig. 1. It is a graph.
  • the first and second brake control means 17, 19 perform the ONZOFF operation of such an urging command independently of each other until time T3 when the first and second lifting machines 4, 5 stop. Execute. As a result, the first and second hoisting machines 4 and 5 are decelerated and stopped at a deceleration close to a predetermined deceleration ⁇ .
  • the brake control means 17, 19 detect the rotation state of the corresponding lifting machines 4, 5 at the time of emergency braking, that is, the deceleration, and according to the detected deceleration, versus Since the braking force of the corresponding brake devices 11 and 15 is controlled, the hoisting machines 4 and 5 can be decelerated and stopped more appropriately during emergency braking.
  • FIG. 3 is a block diagram showing an elevator apparatus according to Embodiment 2 of the present invention.
  • an emergency stop detection means 20 is connected to the first and second brake control means 17 and 19.
  • the emergency stop detection means 20 detects the occurrence of an emergency stop command and activates the braking force control by the first and second brake control means 17 and 19 synchronously.
  • Other configurations are the same as those in the first embodiment.
  • the emergency stop detecting means 20 synchronizes the start of the braking force control operation by the first and second brake control means 17, 19.
  • the difference in tension between the main ropes 6 and 7 can be reduced and damage to the main ropes 6 and 7 can be prevented.
  • the deceleration of the lifting machines 4 and 5 is detected by the brake control means 17 and 19, but in the third embodiment, the rotational speed of the lifting machines 4 and 5 is detected. That is, the brake control means 17 and 19 generate a control target speed that decelerates at a predetermined deceleration with the rotation speed when the emergency stop command of the corresponding lifting machine 4 and 5 is generated as an initial value, and the corresponding lifting machine The braking force of the brake devices 11 and 15 of the corresponding lifting machines 4 and 5 is controlled so that the rotational speeds of the machines 4 and 5 follow the control target speed.
  • Other configurations are the same as those in the second embodiment.
  • FIG. 4 is a graph showing a temporal change in the rotational speed, the energizing command to the electromagnetic coil, and the current of the electromagnetic coil of one of the lifting machines 4 and 5 in FIG.
  • time T 1 is the time when the occurrence of an emergency stop command is detected
  • the rotational speed of the hoisting machines 4 and 5 at this time is VO.
  • the brake control means 17 and 19 execute the following calculation, assuming that the upper and lower limits of the control speed are VI, the predetermined deceleration is ⁇ , and the elapsed time from time T1 is t.
  • V2 (t) (V0 + Vl)-y X t (1)
  • V3 (t) (VO— VI) — ⁇ X t ⁇ ⁇ ⁇ (2)
  • Equation 1 above is the upper limit control target speed pattern
  • Equation 2 is the lower limit control target speed pattern.
  • the brake control means 17 and 19 compare the rotational speed V (t) of the hoisting machines 4 and 5 at that time with the control target speed pattern, and if V (t) ⁇ V3 (t), Energize the electromagnetic coil. If V (t) ⁇ V2 (t), the electromagnetic coil is deactivated.
  • the lifting machines 4 and 5 are decelerated and stopped at a deceleration in the vicinity of a predetermined deceleration ⁇ .
  • the hoisting machines 4 and 5 can be more appropriately decelerated and stopped during emergency braking by controlling the braking force according to the rotational speed that is not the deceleration of the hoisting machines 4 and 5. be able to
  • FIG. 5 is a block diagram showing an elevator apparatus according to Embodiment 4 of the present invention.
  • the brake devices 11 and 15 are controlled by a common brake control means 21.
  • the brake control means 21 detects the deceleration of the second lifting machine 5 during emergency braking, and controls the braking force of the first and second brake devices 11 and 15 according to the detected deceleration. .
  • the specific method for controlling the braking force is the same as in the first embodiment.
  • the brake control means 21 detects the deceleration of the second lifting machine 5 during emergency braking, and the braking of the brake apparatuses 11 and 15 according to the detected deceleration. Because the force is controlled, the hoisting machines 4 and 5 can be decelerated and stopped more appropriately during emergency braking. In addition, since one brake control means 21 is used for the first and second lifting machines 4, 5, the number of brake control means 21 and speed detectors 18 can be reduced, thereby reducing the cost. can do.
  • the deceleration of the second lifting machine 5 is detected and the braking force of the brake devices 11 and 15 is controlled, but as shown in the third embodiment, the second The braking force of the brake devices 11 and 15 may be controlled according to the rotational speed of the lifting machine 5.
  • FIG. 6 is a block diagram showing an elevator apparatus according to Embodiment 5 of the present invention.
  • the brake devices 11 and 15 are controlled by a common brake control means 22.
  • the brake control means 22 detects the deceleration that is the running state of the car 1 during emergency braking, and controls the braking force of the first and second brake devices 11 and 15 according to the detected deceleration. To do.
  • the specific method for controlling the braking force is the same as in the first embodiment.
  • the brake control means 22 detects the deceleration of the car 1 based on the signal of the speed detector 23 that generates a signal corresponding to the speed of the car 1.
  • the speed detector 23 is provided in the speed governor 24, for example.
  • the counterweight is divided into a first counterweight 2a suspended by the first main measure 6 and a second counterweight 2b suspended by the second main measure 7. ing.
  • the brake control means 21 detects the deceleration of the car 1 during emergency braking, and controls the braking force of the brake apparatuses 11 and 15 according to the detected deceleration.
  • the hoisting machines 4, 5 can be decelerated and stopped more appropriately.
  • the deceleration of the car 1 is detected and the braking force of the brake devices 11 and 15 is controlled.
  • the braking force may be controlled.
  • the brake control means 22 generates a control target speed that decelerates at a predetermined deceleration with the traveling speed of the car 1 when the emergency stop command is generated as an initial value, and the traveling speed of the force 1 follows the control target speed.
  • the braking force of the brake devices 11 and 15 is controlled.
  • FIG. 7 is a block diagram showing an elevator apparatus according to Embodiment 6 of the present invention.
  • the brake devices 11 and 15 are controlled by a common brake control means 21.
  • a brake control stop means (switch) 25 is provided between the brake control means 21 and the first brake device 11.
  • An emergency stop detection means 26 is connected to the brake control means 21 and the brake control stop means 25.
  • the emergency stop detection means 26 detects the occurrence of an emergency stop command, activates the braking force control by the brake control means 19, and disconnects the first brake device 11 from the brake control means 21 and immediately starts the braking operation.
  • the brake control means 21 controls the braking force of the second brake device 15 to be controlled so that the deceleration of the second lifting machine 5 to be controlled becomes a predetermined deceleration during emergency braking. To do.
  • the brake device 11 of the lifting machine 4 is disconnected from the brake control means 21 and immediately braked during emergency braking, so the brake control means 21 Even when a failure occurs in the braking force control by the brake device 11, the car 1 can be more reliably stopped by the brake device 11. That is, in the sixth embodiment, as an appropriate deceleration stop method for the hoisting machines 4 and 5 at the time of emergency braking, there is a method for controlling the deceleration of the hoisting machine 5 while the hoisting machine 4 is immediately braked. Is selected. Therefore, by such a control method, the hoisting machines 4 and 5 can be more appropriately decelerated and stopped during emergency braking.
  • FIG. 8 is a block diagram showing an elevator apparatus according to Embodiment 7 of the present invention.
  • the seventh embodiment is a combination of the fifth embodiment and the sixth embodiment. That is, the brake control stop means 25 is provided between the brake control means 22 and the first brake device 11 of the fifth embodiment, and the first brake device 11 is braked by the emergency stop detection means 26 during emergency braking. It was made to separate from 22.
  • the hoisting machines 4, 5 can be more appropriately decelerated and stopped during emergency braking.
  • the brake control means can be configured by a circuit including a microcomputer, for example.
  • an emergency stop command may be detected by a signal from the elevator control device, or may be detected independently by a brake control means. For example, it may be determined that an emergency stop command has been issued by detecting the approach or contact of the brake shoe to the brake vehicle. It is also possible to determine that an emergency stop command has been issued if the current value of the electromagnetic coil of the brake device is less than the predetermined value even though the force speed is above the predetermined value!
  • the deceleration or speed is detected by the signal from the speed detector provided on the hoisting machine or speed governor, but the speed sensor of the force provided in the car or hoistway A signal may be used.
  • the brake control means may perform both the brake control during normal operation and the brake control when an emergency stop command is generated, or only the brake control when an emergency stop command is generated. In the latter case, the brake control during normal operation is performed by the operation control means, and the brake control means independent of the operation control means force is used.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Elevator Control (AREA)

Abstract

Dans un appareil ascenseur, le mouvement vertical d'une cabine est possible par le biais de multiples machines de levage. Chacune des machines de levage est équipée d'une unité de frein. Les unités de frein sont commandées individuellement par des moyens de commande de frein respectifs. Chacun des moyens de commande de frein lors d'un freinage d'urgence détecte l'état de rotation de la machine de levage correspondante et commande la force de freinage de l'unité de frein correspondante en fonction de l'état de rotation détecté.
PCT/JP2006/324210 2006-12-05 2006-12-05 Appareil ascenseur Ceased WO2008068839A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1020097006786A KR101080601B1 (ko) 2006-12-05 2006-12-05 엘리베이터 장치
PCT/JP2006/324210 WO2008068839A1 (fr) 2006-12-05 2006-12-05 Appareil ascenseur
JP2008548128A JP5172695B2 (ja) 2006-12-05 2006-12-05 エレベータ装置
CN2006800560897A CN101522553B (zh) 2006-12-05 2006-12-05 电梯装置
EP06833965.4A EP2058261B1 (fr) 2006-12-05 2006-12-05 Appareil ascenseur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2006/324210 WO2008068839A1 (fr) 2006-12-05 2006-12-05 Appareil ascenseur

Publications (1)

Publication Number Publication Date
WO2008068839A1 true WO2008068839A1 (fr) 2008-06-12

Family

ID=39491759

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2006/324210 Ceased WO2008068839A1 (fr) 2006-12-05 2006-12-05 Appareil ascenseur

Country Status (5)

Country Link
EP (1) EP2058261B1 (fr)
JP (1) JP5172695B2 (fr)
KR (1) KR101080601B1 (fr)
CN (1) CN101522553B (fr)
WO (1) WO2008068839A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010110080A (ja) * 2008-10-29 2010-05-13 Okuma Corp モータ制御装置
WO2010113356A1 (fr) * 2009-04-03 2010-10-07 三菱電機株式会社 Dispositif d'ascenseur
RU2535956C2 (ru) * 2009-03-16 2014-12-20 Отис Элевэйтор Компани Конфигурация лифтовых приводных механизмов

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009128139A1 (fr) * 2008-04-15 2009-10-22 三菱電機株式会社 Dispositif élévateur
DE102010038432A1 (de) * 2010-07-26 2012-01-26 Thyssenkrupp Aufzugswerke Gmbh Aufzugsteuereinrichtung
WO2017076793A1 (fr) * 2015-11-02 2017-05-11 Inventio Ag Freinage échelonné d'un ascenseur
CN105460730A (zh) * 2016-01-14 2016-04-06 张明 一种用于曳引式电梯的监控制动系统及方法
DE102019200375A1 (de) * 2019-01-15 2020-07-16 Thyssenkrupp Ag Aufzugsanlage mit einer ersten Aufhängung und einer zweiten Aufhängung an einem Fahrkorb
CN113415701A (zh) * 2021-08-02 2021-09-21 美迪斯电梯有限公司 一种双驱动电梯

Citations (5)

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Publication number Priority date Publication date Assignee Title
JPH0742063B2 (ja) 1992-07-17 1995-05-10 三菱電機株式会社 エレベータ駆動システム
JPH08198542A (ja) * 1995-01-30 1996-08-06 Otis Elevator Co 制動力調節装置付エレベーター
JP2002003095A (ja) * 2000-06-22 2002-01-09 Mitsubishi Electric Corp エレベータの制御装置
JP2006168978A (ja) * 2004-12-20 2006-06-29 Hitachi Ltd エレベータシステム
WO2006092967A1 (fr) * 2005-03-01 2006-09-08 Mitsubishi Denki Kabushiki Kaisha Ascenseur

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ATE201380T1 (de) * 1995-03-10 2001-06-15 Inventio Ag Einrichtung und verfahren zur schwingungsdämpfung an einer aufzugskabine
US6786304B2 (en) * 2001-04-10 2004-09-07 Mitsubishi Denki Kabushiki Kaisha Guide for elevator
JP4107480B2 (ja) * 2002-07-29 2008-06-25 三菱電機株式会社 エレベータの振動低減装置
US6802395B1 (en) * 2003-03-28 2004-10-12 Kone Corporation System for control and deceleration of elevator during emergency braking
JP4850708B2 (ja) * 2004-07-12 2012-01-11 三菱電機株式会社 エレベータの制御システム
US20100018810A1 (en) * 2005-03-01 2010-01-28 Mitsubishi Electric Corporation Elevator apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0742063B2 (ja) 1992-07-17 1995-05-10 三菱電機株式会社 エレベータ駆動システム
JPH08198542A (ja) * 1995-01-30 1996-08-06 Otis Elevator Co 制動力調節装置付エレベーター
JP2002003095A (ja) * 2000-06-22 2002-01-09 Mitsubishi Electric Corp エレベータの制御装置
JP2006168978A (ja) * 2004-12-20 2006-06-29 Hitachi Ltd エレベータシステム
WO2006092967A1 (fr) * 2005-03-01 2006-09-08 Mitsubishi Denki Kabushiki Kaisha Ascenseur

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010110080A (ja) * 2008-10-29 2010-05-13 Okuma Corp モータ制御装置
RU2535956C2 (ru) * 2009-03-16 2014-12-20 Отис Элевэйтор Компани Конфигурация лифтовых приводных механизмов
WO2010113356A1 (fr) * 2009-04-03 2010-10-07 三菱電機株式会社 Dispositif d'ascenseur
CN102325713A (zh) * 2009-04-03 2012-01-18 三菱电机株式会社 电梯装置

Also Published As

Publication number Publication date
KR101080601B1 (ko) 2011-11-04
EP2058261B1 (fr) 2018-03-07
CN101522553B (zh) 2012-02-01
JP5172695B2 (ja) 2013-03-27
EP2058261A1 (fr) 2009-05-13
EP2058261A4 (fr) 2013-04-17
KR20090057084A (ko) 2009-06-03
JPWO2008068839A1 (ja) 2010-03-11
CN101522553A (zh) 2009-09-02

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