EP1512656A1 - Contrepoids - Google Patents

Contrepoids Download PDF

Info

Publication number
EP1512656A1
EP1512656A1 EP02738691A EP02738691A EP1512656A1 EP 1512656 A1 EP1512656 A1 EP 1512656A1 EP 02738691 A EP02738691 A EP 02738691A EP 02738691 A EP02738691 A EP 02738691A EP 1512656 A1 EP1512656 A1 EP 1512656A1
Authority
EP
European Patent Office
Prior art keywords
counterweight
car
separated
elevator system
rotating body
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.)
Granted
Application number
EP02738691A
Other languages
German (de)
English (en)
Other versions
EP1512656A4 (fr
EP1512656B1 (fr
Inventor
Kazumasa c/o Mitsubishi Denki K.K. ITO
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
Publication of EP1512656A1 publication Critical patent/EP1512656A1/fr
Publication of EP1512656A4 publication Critical patent/EP1512656A4/fr
Application granted granted Critical
Publication of EP1512656B1 publication Critical patent/EP1512656B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B17/00—Hoistway equipment
    • B66B17/12—Counterpoises

Definitions

  • the present invention relates to a counterweight. More particularly, the present invention relates to a counterweight for elevator system, which rises and lowers by being connected to a car rising and lowering in an elevator system.
  • Figure 7 is a schematic view showing an outline of a traction type elevator system 200.
  • the elevator system 200 has an elevator shaft 2.
  • the upper part of the elevator shaft 2 is closed by a machine room floor 4, and a machine room 6 is provided above the floor 4.
  • a hoisting machine 24 In the machine room 6 is provided a hoisting machine 24, and a rope 26 is wound around the hoisting machine 24. Both ends of the rope 26 hang from the machine room 4 into the elevator shaft 2. One end of the rope 26 is fixed to the car 8, and hangs the car 8 in the elevator shaft 2. The other end thereof is fixed to the counterweight 10, and hangs the counterweight 10 in the elevator shaft 2.
  • the car 8 and the counterweight 10 are raised and lowered in the elevator shaft 2 by the movement of rope caused by the rotation of the hoisting machine 24.
  • the car 8 and the counterweight 10 rise and lower with a some degree of weight balance in a state in which they are fixed to both ends of the rope 26. Also, the weight of the counterweight 10 is usually set at a half of the rated load of the car 8 considering the system efficiency.
  • a buffer 60 is provided in the elevator system 200 at the lower part of the elevator shaft 2 on the counterweight 10 side.
  • a shock can be absorbed to some degree, so that the shock can be eased as compared with the case where the counterweight 10 collides directly with the bottom of the elevator shaft 2.
  • the counterweight 10 lowers in the elevator shaft 2 at a speed higher than the rated speed, it collides with the buffer 60 at a speed higher than the rated speed. In such a case, a great shock is given to the counterweight 10 as well as the car 8.
  • an emergency stopper is installed under the car 8 or the counterweight 10, and a speed governor is provided in the machine room 6. Thereby, rapid movement of the car 8 at a speed higher than the rated speed is detected, and if the car 8 moves at a speed higher than the rated speed, a brake is applied to stop the car 8. Further, as another precaution, a rope brake such as to hold a main rope directly is sometimes provided. In operating the elevator system, various safety precautions are taken.
  • the elevator system requires some degree of space. In installing the elevator system, however, space saving is often demanded strongly. Therefore, a safety device requiring a space for installation is not necessarily suitable. Also, when a device for directly holding the main rope to stop the elevator is used, the main rope may be worn early. Further, the safety devices of these types have complicated construction, so that a malfunction is liable to occur. Also, these devices are high in cost in most cases. In addition, when these devices are used, the braking force depends on the frictional force, so that the deceleration force during braking fluctuates greatly. Also, when the operation speed is high, the braking distance increases, and hence a shoe is worn, which may make braking operation impossible.
  • the present invention proposes a counterweight for elevator system, which has been improved to solve the above problems and to easily prevent the moving speed of a car from becoming a speed higher than the rated speed.
  • the present invention provides a counterweight which rises and lowers by being connected to a car rising and lowering in an elevator system, characterized in that the counterweight has an upper counterweight and a lower counterweight, and the upper counterweight and the lower counterweight can be separated from each other.
  • the balance between the car and the counterweight can be adjusted by separating a part of the counterweight. Therefore, the rising and lowering speed can be alleviated, and hence a collision of the car or the counterweight with the bottom of an elevator shaft can be prevented, or the shock of collision can be eased.
  • the upper counterweight when the counterweight is separated, the upper counterweight has an upper brake device for stopping the upper counterweight, and the lower counterweight has a lower brake device for stopping the lower counterweight.
  • the upper counterweight and the lower counterweight that rise or lower are separated from each other and can be stopped individually. Therefore, the car can be stopped more easily, and the safety of elevator system can be ensured.
  • the counterweight for elevator system in accordance with the present invention has a resetting means for connecting the upper counterweight and the lower counterweight to each other when the upper counterweight and the lower counterweight have been separated from each other. Thereby, even after the upper counterweight and the lower counterweight have been separated from each other, the connection can be resetting easily.
  • Figure 1 is a schematic view of an elevator system 100 in accordance with an embodiment of the present invention.
  • Figure 2 is a schematic view for illustrating a construction of a counterweight 10 in the elevator system 100, in which Figure 2A being a front view and Figure 2B being a side view.
  • Figure 2 shows an emergency brake arranged on the right-hand side in Figure 1 and a surrounding portion thereof.
  • the elevator system 100 has an elevator shaft 2.
  • the upper part of the elevator shaft 2 is closed by a machine room floor 4, and a machine room 6 is provided above the floor 4.
  • the counterweight 10 is designed so as to have a weight that is a half of the rated load of the car 8.
  • On the car 8 side of the elevator shaft 2 are provided guide rails 12, and the car 8 is connected to the guide rails 12 so as to be movable vertically.
  • On the counterweight 10 side thereof are provided guide rails 14, and the counterweight 10 is connected to the guide rails 14 so as to be movable vertically.
  • the machine room floor 4 is formed with two rope penetrating holes 20 and 22. Also, a hoisting machine 24 is provided in the machine room 6.
  • a rope 26 is wound around the hoisting machine 24.
  • One end of the rope 26 hangs from the machine room 6 into the elevator shaft 2 through the rope penetrating hole 20 formed in the machine room floor 4, and is fixed to the car 8 to hang the car 8 in the elevator shaft 2.
  • the other end of the rope 26 hangs from the machine room 6 into the elevator shaft 2 through the rope passage 22 formed in the machine room floor 4, and is fixed to the counterweight 10 to hang the counterweight 10 in the elevator shaft 2.
  • the counterweight 10 has an upper counterweight 30 and a lower counterweight 32.
  • the lower counterweight 32 has a slightly lighter weight than the unmanned weight of the car 8.
  • the weight of the upper counterweight 30 is set so that the weight of the whole of the counterweight 10 is a half of the rated load of the car 8 in a state where it is connected to the lower counterweight 32.
  • an emergency brake Between the upper counterweight 30 and the lower counterweight 32 is provided an emergency brake.
  • the upper counterweight 30 and the lower counterweight 32 are connected to the emergency brake.
  • the rope 26 penetrates the upper counterweight 30 and is fixed to the upper part of the lower counterweight 32 only.
  • the emergency brake includes a brake central portion 34, an upper brake element 36, and a lower brake element 38.
  • the brake central portion 34 has a solenoid coil 40.
  • the solenoid coil 40 is connected to a current source so that a current flows as necessary.
  • a plunger 42 In the center of the solenoid coil 40 is provided a plunger 42.
  • the upper brake element 36 is installed and fixed in the upper counterweight 30.
  • the upper brake element 36 has a connecting rod 44.
  • the connecting rod 44 has a through hole, and the plunger 42 of the brake central portion 34 passes through the through hole.
  • the operating elastic member 46 is a spring-shaped elastic member formed by a strong wire.
  • a roller 48 At one end of the connecting rod 44 is provided a roller 48.
  • the roller 48 is a columnar member having a circular shape when viewed from the side.
  • the upper brake element 36 has a wedge-shaped groove 50 formed above the roller 48.
  • the groove 50 has a tapered shape such that the distance to the guide rail 14 decreases upward when viewed from the side.
  • the lower brake element 38 is installed and fixed in the lower counterweight 32.
  • the lower brake element 38 has a connecting rod 52.
  • the connecting rod 52 has a through hole, and the plunger 42 of the brake central portion 34 passes through the through hole.
  • the operating elastic member 54 is a spring-shaped elastic member formed by a strong wire.
  • a roller 56 At one end of the connecting rod 52 is provided a roller 56.
  • the roller 56 is a columnar member having a circular shape when viewed from the side.
  • the upper brake element 38 has a wedge-shaped groove 58 formed below the roller 56.
  • the groove 58 has a tapered shape such that the distance to the guide rail 14 decreases downward when viewed from the side.
  • Figure 3 is a schematic view of the resetting plate.
  • Figure 3A shows the resetting plate 16
  • Figure 3B shows the resetting plate 18.
  • the upper resetting plate 16 has a downward tapered shape
  • the lower resetting plate 18 inversely has an upward tapered shape
  • Figure 4 is a schematic view showing a state in which the emergency brake is operated in the elevator system 100.
  • Figure 5 is a schematic view showing the state of the upper counterweight 30 at the time when the emergency brake is operated
  • Figure 6 is a schematic view showing the state of the lower counterweight 32 at the time when the emergency brake is operated.
  • Figures 5 and 6 each show the emergency brake arranged on the right-hand side in Figure 4 and a portion around the emergency brake.
  • Figures 5A and 6A are front views
  • Figures 5B and 6B are side views.
  • the weight of the counterweight 10 is set so as to be a half of the rated load of the car 8. Therefore, for example, in the case where the hoisting machine 24 becomes uncontrollable due to a failure of the hoisting machine 24, breakage of a shaft, etc. during the time when the car 8 rises in a state such that the load in the car 8 is lower than a half load, that is, the counterweight 10 is heavier than the car 8, the rising speed of the car 8 increases, and the car 8 rises at a speed higher than the rated speed.
  • the operation of the emergency brake in the case where the car 8 rises at an abnormal speed higher than the rated speed will be described.
  • the counterweight 10 lowers at the same speed.
  • the abnormality is detected, and a current flows in the solenoid coil 40 from a source current.
  • the plunger 42 moves in the inside direction when viewed from the front, and the plunger 42 is pulled out of the through holes in the connecting rods 44 and 52.
  • the upper brake element 36 and the lower brake element 38 are disconnected from each other. Therefore, as shown in Figure 4, the upper counterweight 30 is separated from the lower counterweight 32. At this time, the brake central portion 34 moves together with the lower brake element 38.
  • the roller 48 When the upper counterweight 30 continues lowering, the roller 48 is subjected to the upward elastic force of the operating elastic member 46 and an upward frictional force generated between the roller 48 and the guide rail 14, so that the roller 48 is further pushed upward. Thereby, the roller 48 is gradually fitted and pressed between the wedge-shaped groove 50 having a tapered shape such that the distance to the guide rail 14 decreases upward and the guide rail 14.
  • the upper brake element 36 When the roller 48 is fitted in the groove 50 completely, the upper brake element 36 is fixed to the guide rail 14, so that the upper counterweight 30 stops at an upper portion of the elevator shaft 2.
  • the lower counterweight 32 continues lowering in a state in which the lower counterweight 32 and the car 8 are connected to each other by the rope 26.
  • the lower counterweight 32 stops lowering after lowering to some degree, and inversely the lower counterweight 32 begins rising by being pulled by the car 8.
  • the frictional force generated between the roller 56 and the guide rail 14 becomes a downward force, so that the roller 56 is pushed downward by this downward frictional force and the downward elastic force applied by the operating elastic member 54. Therefore, the roller 56 is gradually fitted in the groove 58 and is pressed between the groove 58 and the guide rail 14.
  • the lower brake element 38 is fixed to the guide rail 14. Thereby, the lower counterweight 32 is stopped in an intermediate portion of the elevator shaft 2, whereby the car 8 is also stopped.
  • the lower counterweight 32 is pushed down to a position at which the lower resetting plate 18 is provided by moving the elevator system 100 manually.
  • an upward tapered portion of the resetting plate 18 automatically pushes up the roller 56 and removes it from the groove 58, so that the roller 56 is pushed back to the original position at which the lower counterweight 32 is connected to the upper counterweight 30.
  • the plunger 42 can be reconnected to the connecting rod 52 automatically.
  • the lower counterweight 32 is pushed up in this state together with the lower brake element 38 to the position at which the upper counterweight 30 stops, and successively the upper counterweight 30, i.e., the upper brake element 38 is pushed up together with the lower counterweight 32 to the position at which the upper resetting plate 16 is installed.
  • a downward tapered portion of the resetting plate 16 automatically pushes down the roller 48 and removes it from the groove 50, so that the roller 28 is pushed back to the original position at which the upper counterweight 30 is connected to the lower counterweight 32.
  • the plunger 42 is automatically connected to the connecting rod 52, by which the upper counterweight 30 can be connected to the lower counterweight 32.
  • the lower counterweight 32 continues rising while being pulled by the car 8, by which the roller 56 is pushed downward by a downward elastic force of the operating elastic member 54 and a downward frictional force generated between the roller 56 and the guide rail 14. Therefore, the roller 56 fits in the groove 58, whereby the lower counterweight 32 is stopped.
  • the unmanned load of the car 8 is set so as to be heavier than the weight of the lower counterweight 32, even if a failure occurs either when the load of the car 8 is lower than a half load or when the load thereof is higher than a half load, or either during the time when the car 8 rises or during the time when it lowers, the lower counterweight 32 is raised finally by being pulled to the car 8 side by the disconnection of the counterweight 10. Therefore, the roller 56 fits in the groove 58 during rising, whereby the lower counterweight 32 is stopped.
  • the car 8 can be stopped by a simple device. Also, according to this device, the counterweight 10 can be separated easily by a simple mechanism, so that a machine malfunction is less liable to occur, and thus a highly reliable emergency brake can be installed.
  • the shape, construction, and the like of the elevator system and the members thereof are not limited to those described in the above embodiment in the scope of the present invention.
  • the plunger 42 and the connecting rods 44 and 52 are used as means for disconnecting the upper counterweight 30 and the lower counterweight 32 from each other.
  • the present invention is not limited to the construction explained in this embodiment.
  • the upper counterweight 30 and the lower counterweight 32 may be disconnected from each other, for example, by a device that is electrically controlled from the outside.
  • a wedge effect using the rollers 48 and 56 and the grooves 50 and 58 is utilized as means for stopping the upper counterweight 30 and the lower counterweight 32.
  • the present invention is not limited to the construction explained in this embodiment.
  • the present invention is not limited to the elevator system having the emergency brake. Even in the case where the emergency brake is not provided, if the counterweight 10 can be separated into two, by setting the car 8 and the upper and lower counterweights so as to be imbalanced, the rising and lowering speed higher than the rated speed can be alleviated. Also, if such a counterweight and a buffer etc. having been used conventionally are used combinedly, a further safety precaution can be taken.
  • upper and lower brake devices mean means for stopping the upper and lower counterweights, respectively.
  • they correspond to the upper and lower brake elements 36 and 38 in this embodiment, respectively.
  • upper and lower rotating bodies correspond to, for example, the rollers 48 and 56 in this embodiment, respectively.
  • Upper and lower elastic members correspond to, for example, the operating elastic members 46 and 54, respectively.
  • Upper and lower grooves correspond to, for example, the grooves 50 and 58, respectively.
  • connecting means indicates means for connecting the upper and lower counterweights to each other, and corresponds to, for example, the brake central portion 34 in this embodiment.
  • a connecting portion corresponds to, for example, the connecting rods 44 and 52 in this embodiment.
  • a penetrating shaft corresponds to the plunger 42.
  • a control unit corresponds to, for example, a portion including the solenoid coil 40 in this embodiment.
  • resetting means indicates means for reconnecting the upper counterweight and the lower counterweight to each other when the upper counterweight and the lower counterweight have been disconnected from each other, and corresponds to, for example, the resetting plates 16 and 18 in this embodiment.
  • the counterweight for elevator system can be separated into an upper part and a lower part. Therefore, during the time when the elevator system rises or lowers, by separating the counterweight as necessary, the balance between the car and the counterweight can be adjusted to decrease the rising and lowering speed.
  • the elevator system can be stopped by a simple device, and safety in elevator operation can be ensured.
  • the counterweights can easily be resetting to the original connected state after they have been separated. Therefore, the operation of the elevator system can be resetting rapidly without preparing complicated equipment, so that improvement in service and reduction in cost can be achieved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
EP02738691A 2002-06-13 2002-06-13 Contrepoids Expired - Lifetime EP1512656B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2002/005905 WO2003106321A1 (fr) 2002-06-13 2002-06-13 Contrepoids

Publications (3)

Publication Number Publication Date
EP1512656A1 true EP1512656A1 (fr) 2005-03-09
EP1512656A4 EP1512656A4 (fr) 2008-11-12
EP1512656B1 EP1512656B1 (fr) 2010-03-17

Family

ID=29727350

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02738691A Expired - Lifetime EP1512656B1 (fr) 2002-06-13 2002-06-13 Contrepoids

Country Status (6)

Country Link
EP (1) EP1512656B1 (fr)
JP (1) JPWO2003106321A1 (fr)
KR (1) KR100569799B1 (fr)
CN (1) CN1285500C (fr)
DE (1) DE60235727D1 (fr)
WO (1) WO2003106321A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010081935A1 (fr) * 2009-01-15 2010-07-22 Kone Corporation Ascenseur
WO2011032582A1 (fr) * 2009-09-16 2011-03-24 Manuela Widmann Dispositif d'évacuation d'urgence notamment destiné à des ascenseurs
US20130248299A1 (en) * 2010-12-01 2013-09-26 Kone Corporation Elevator arrangement and method

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7656641B2 (en) * 2006-12-21 2010-02-02 General Electric Company Apparatus and method for controlling a solenoid
JP5354898B2 (ja) * 2007-12-26 2013-11-27 株式会社日立製作所 エレベータのつり合いおもり
CN101407301A (zh) * 2008-11-17 2009-04-15 吕安文 无能耗升降装置
CN102126663A (zh) * 2011-03-07 2011-07-20 邬建勋 一种无轨对重装置及无轨轿厢
JP5777742B2 (ja) * 2014-01-14 2015-09-09 株式会社東芝 エレベータ装置
JP6716038B2 (ja) * 2017-07-14 2020-07-01 三菱電機株式会社 エレベータの釣合おもり装置
JP2019183214A (ja) * 2018-04-06 2019-10-24 光洋サーモシステム株式会社 熱処理装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1073700A (en) * 1913-02-20 1913-09-23 Neenan Elevator Company Rope elevator.
WO2002034658A1 (fr) * 2000-10-20 2002-05-02 Kabushiki Kaisha Toshiba Ascenseur sans local de machinerie

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06263368A (ja) * 1993-03-12 1994-09-20 Otis Elevator Co エレベーターの釣り合い重り装置
JPH0797161A (ja) * 1993-09-27 1995-04-11 Fuji Hensokuki Kk 昇降装置のバランスウエート
US5495919A (en) * 1994-04-25 1996-03-05 Otis Elevator Company Safety brake apparatus for an elevator car or counterweight
JP2001080837A (ja) * 1999-09-13 2001-03-27 Hitachi Ltd エレベータ装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1073700A (en) * 1913-02-20 1913-09-23 Neenan Elevator Company Rope elevator.
WO2002034658A1 (fr) * 2000-10-20 2002-05-02 Kabushiki Kaisha Toshiba Ascenseur sans local de machinerie

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO03106321A1 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010081935A1 (fr) * 2009-01-15 2010-07-22 Kone Corporation Ascenseur
WO2011032582A1 (fr) * 2009-09-16 2011-03-24 Manuela Widmann Dispositif d'évacuation d'urgence notamment destiné à des ascenseurs
US20130248299A1 (en) * 2010-12-01 2013-09-26 Kone Corporation Elevator arrangement and method

Also Published As

Publication number Publication date
JPWO2003106321A1 (ja) 2005-10-13
DE60235727D1 (de) 2010-04-29
CN1285500C (zh) 2006-11-22
WO2003106321A1 (fr) 2003-12-24
CN1549789A (zh) 2004-11-24
KR100569799B1 (ko) 2006-04-10
EP1512656A4 (fr) 2008-11-12
KR20040021694A (ko) 2004-03-10
EP1512656B1 (fr) 2010-03-17

Similar Documents

Publication Publication Date Title
JP6012596B2 (ja) エレベータ装置
US9637348B2 (en) Elevator apparatus
US9505587B2 (en) Elevator with acceleration detection
EP3674247A1 (fr) Ascenseur comprenant un moteur electrique lineair
KR20140042769A (ko) 비상정지장치를 구동시키고 리셋시키기 위한 장치
EP3643666B1 (fr) Système d'ascenseur
EP1512656B1 (fr) Contrepoids
US10773923B2 (en) Method for avoiding unwanted safety gear tripping in an elevator system, controller adapted to perform such a method, governor brake and elevator system each having such a controller
US9663325B2 (en) Braking apparatus and elevator hoisting machine that uses same
EP3456674B1 (fr) Système de detection de mou d'un element de tension d'ascenseur et procede pour effectuer une operation d'arret d'urgence d'un ascenseur
JP6062009B2 (ja) エレベータ装置
US20140202798A1 (en) Elevator monitoring arrangement and method for monitoring an elevator
US11597633B2 (en) Elevator safety brake, elevator and method for testing elevator safety brakes
US7419033B2 (en) Emergency brake device for elevator
JP2016204061A (ja) エレベータ装置
US1727432A (en) Elevator safety
EP3689804A1 (fr) Frein de sécurité d'ascenseur, ascenseur et procédé pour tester des freins de sécurité d'ascenseur
JP6172082B2 (ja) ダブルデッキエレベータ
JPH05338959A (ja) リニアモータ駆動エレベーター装置

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20040120

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

RBV Designated contracting states (corrected)

Designated state(s): DE

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: MITSUBISHI DENKI KABUSHIKI KAISHA

A4 Supplementary search report drawn up and despatched

Effective date: 20081013

17Q First examination report despatched

Effective date: 20090204

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE

REF Corresponds to:

Ref document number: 60235727

Country of ref document: DE

Date of ref document: 20100429

Kind code of ref document: P

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20101220

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20130605

Year of fee payment: 12

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 60235727

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 60235727

Country of ref document: DE

Effective date: 20150101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150101