EP1456492A1 - Door closure apparatus - Google Patents

Door closure apparatus

Info

Publication number
EP1456492A1
EP1456492A1 EP02804953A EP02804953A EP1456492A1 EP 1456492 A1 EP1456492 A1 EP 1456492A1 EP 02804953 A EP02804953 A EP 02804953A EP 02804953 A EP02804953 A EP 02804953A EP 1456492 A1 EP1456492 A1 EP 1456492A1
Authority
EP
European Patent Office
Prior art keywords
door
hinge
magnetic means
plate
hinge plate
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
EP02804953A
Other languages
German (de)
French (fr)
Other versions
EP1456492B1 (en
Inventor
Derek Alfred Ward
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.)
Environmental Seals Ltd
Original Assignee
Environmental Seals Ltd
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 Environmental Seals Ltd filed Critical Environmental Seals Ltd
Publication of EP1456492A1 publication Critical patent/EP1456492A1/en
Application granted granted Critical
Publication of EP1456492B1 publication Critical patent/EP1456492B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/002—Closers or openers for wings, not otherwise provided for in this subclass controlled by automatically acting means
    • E05F1/006—Closers or openers for wings, not otherwise provided for in this subclass controlled by automatically acting means by emergency conditions, e.g. fire
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
    • E05C17/56—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by magnetic or electromagnetic attraction or operated by electric or electromagnetic means
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D11/00—Additional features or accessories of hinges
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/002—Closers or openers for wings, not otherwise provided for in this subclass controlled by automatically acting means
    • E05F1/008—Closers or openers for wings, not otherwise provided for in this subclass controlled by automatically acting means by time control
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/218—Holders
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/404—Function thereof
    • E05Y2201/41—Function thereof for closing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/46—Magnets
    • E05Y2201/462—Electromagnets
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Type of wing
    • E05Y2900/132—Doors

Definitions

  • This invention relates to door closure apparatus.
  • Conventional devices for controlling the movement of a door from its open to closed positions tend to comprise some form of pivotable bracket which extends between an attachment to an upper door face and an attachment to the headrail of the frame in which the door is mounted. Movement of the bracket arms is then controlled through a hydraulic, pneumatic or spring operated cylinder mounted on the door itself or on the headrail of the frame.
  • Such closure devices are unsightly, cumbersome and difficult to instal and adjust.
  • One object of this invention is to provide an improved door closure apparatus which overcomes, or at least alleviates, many of the disadvantages of conventional door closure devices.
  • door closure apparatus comprising a hinge having a first hinge plate for attachment to one upstanding side edge of a door, a second hinge plate for attachment to an upstanding side edge of a doorpost and means for enabling relative rotation between the two hinge plate; and magnetic means comprising a first element which includes a magnet and a second element which includes a keeper plate to which the magnet is attracted; one of the elements of the magnetic means being supported from the second hinge plate and the other of the elements being supported by the first hinge plate or the door, the arrangement being such that the elements of the magnetic means co-operate to or control movement of the door between its open and closed position.
  • a housing may form part of, be secured to or be supported by the second flange plate, the housing being dimensional to receive and retain the said one element of the magnetic means.
  • the side of the housing closest to the door may be formed with an opening through which one end of the said one element is exposed.
  • the said one element of the magnetic means is the magnet.
  • the said other element of the magnetic means may be secured to a door face surface which, when the door is in its open position, lies directly opposite and possibly in contact with said one element of the magnetic means.
  • the said second element of the magnetic means is the keeper plate.
  • the first element of the magnetic means may comprise an electromagnet or a permanent magnet.
  • the electromagnet may be powered by mains electricity.
  • a switching mechanism may be provided which enables powerto be maintained to the electric magnet to retain the door in its open position for a set period of time or until re-operation of the switching mechanism.
  • the switching mechanism is positioned within the housing.
  • a smoke and/or fire detector may be provided to automatically deactivate power to the magnet in response to an electrical or electronic signal generated by the detector upon smoke or fire being detected.
  • an electric motor may be provided which operates to effect movement of the first hinge plate relative to the second hinge plate about the pin on which the two hinge plates are supported.
  • the electric motor may be operated remotely in response to an electrical signal, for example an RF signal received from a hand-held signal initiating device.
  • the invention provides door closure apparatus comprising a hinge having a first hinge plate for attachment to one upstanding side edge of a door, a second hinge plate for attachment to an upstanding side edge of a doorpost and means for enabling relative rotation between the two hinge plates; a housing forming part of or supported by the second hinge plate; and means located within the housing for controlling movement of the door between its open and closed positions.
  • the invention provides door closure apparatus including a hinge having first and second flange plates supported for relative rotation about a pin, a housing connected to one flange plate, a magnet located within the housing, and a keeper plate separate from the housing.
  • the magnet may be a permanent magnet or a mains-connected electromagnet.
  • the illustrated apparatus comprises a hinge 1 including a spindle about which can rotate a first hinge plate 2 formed with screw receiving holes to enable it to be secured to a side edge of a door (not shown) and a second hinge plate 3 formed with screw receiving holes to enable it to be secured to a doorpost (not shown).
  • the first hinge plate 2 carries a metallic keeper plate 4 having a screw receiving hole 5 to enable it to be attached to one face of the door.
  • the keeper plate may be formed integrally with the first hinge plate 2. Generally, the keeper plate 4 will subtend a right angle to the first hinge plate. In an alternative arrangement, the keeper plate 4 is separate from the hinge plate 2.
  • the screws of the second hinge plate 3 pass through suitably aligned holes 6 formed in a flange 7 of a housing 8.
  • the opposing faces of the second hinge plate 3 and the housing flange 7 are in contact one with the other and are secured to the doorpost by the same screw set.
  • the housing 8 comprises a backing plate 9 from which protrudes an electromagnet 10 connected through switches or electrical connections 11 to a mains source of electricity.
  • the housing includes a removable cover 12 connectable to the backing plate 9 by screws which pass through holes 14 formed in one side wall 15 of the housing and holes 16 formed in angled projections 17 attached to the backing plate 9.
  • the cover includes a front opening 18 by which the face end of the electromagnet 10 is exposed.
  • the keeper plate 4 is sited opposite the exposed end of the electromagnet 10 when the door is in its open position, these two elements co-operating to hold the door in its open position by the force of attraction between the electromagnet 10 and the keeper plate 4.
  • the switches 11 may operate to switch off power to the electromagnet after a set period of time thereby imposing a delay on closure of the door.
  • the force of attraction can readily be selected to control the speed of movement of the door between its open and closed positions.
  • the switches 11 may operate in response to an electrical or electronic signal received from a smoke and/or fire detecting device. Thus, upon smoke or fire being detected, power to the electromagnet is switched off to cause the door immediately to move to its closed position.
  • An electric motor may be provided selectively to impart movement of the hinge plate 2 and therefore the door.
  • the motor may be operated remotely via a hand-held RF signal generator.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Special Wing (AREA)
  • Electrotherapy Devices (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

Door closure apparatus has a hinge 1 having a first hinge plate 2 for attachment to one upstanding side edge of a door. A second hinge plate 3 for attachment to an upstanding side edge of a doorpost and means for enabling relative rotation between the two hinge plates 2, 3. Magnetic means have a first element which includes a magnet 10 and a second element which includes a keeper plate 4 to which the magnet is attracted. At least one element of the magnetic means is supported from the second hinge plate 3 and the other elements are supported by the first hinge plate 2 or the door. The arrangement being such that the elements of the magnetic means co-operate to or control movement of the door between its open and closed position. The magnet may be an electromagnet controlled by a switching mechanism. An electric motor may also be included to operate the first hinge plate 2 and can be controlled remotely by an electric RF signal from a hand held device.

Description

DOOR CLOSURE APPARATUS
This invention relates to door closure apparatus.
Conventional devices for controlling the movement of a door from its open to closed positions tend to comprise some form of pivotable bracket which extends between an attachment to an upper door face and an attachment to the headrail of the frame in which the door is mounted. Movement of the bracket arms is then controlled through a hydraulic, pneumatic or spring operated cylinder mounted on the door itself or on the headrail of the frame. Such closure devices are unsightly, cumbersome and difficult to instal and adjust.
One object of this invention is to provide an improved door closure apparatus which overcomes, or at least alleviates, many of the disadvantages of conventional door closure devices.
According to the present invention in one aspect, there is provided door closure apparatus comprising a hinge having a first hinge plate for attachment to one upstanding side edge of a door, a second hinge plate for attachment to an upstanding side edge of a doorpost and means for enabling relative rotation between the two hinge plate; and magnetic means comprising a first element which includes a magnet and a second element which includes a keeper plate to which the magnet is attracted; one of the elements of the magnetic means being supported from the second hinge plate and the other of the elements being supported by the first hinge plate or the door, the arrangement being such that the elements of the magnetic means co-operate to or control movement of the door between its open and closed position. A housing may form part of, be secured to or be supported by the second flange plate, the housing being dimensional to receive and retain the said one element of the magnetic means. The side of the housing closest to the door may be formed with an opening through which one end of the said one element is exposed. In a preferred arrangement, the said one element of the magnetic means is the magnet.
The said other element of the magnetic means may be secured to a door face surface which, when the door is in its open position, lies directly opposite and possibly in contact with said one element of the magnetic means.
In a preferred arrangement, the said second element of the magnetic means is the keeper plate.
The first element of the magnetic means may comprise an electromagnet or a permanent magnet. In the former case, the electromagnet may be powered by mains electricity.
In the arrangement in which an electromagnet is employed, a switching mechanism may be provided which enables powerto be maintained to the electric magnet to retain the door in its open position for a set period of time or until re-operation of the switching mechanism. In a preferred arrangement, the switching mechanism is positioned within the housing.
A smoke and/or fire detector may be provided to automatically deactivate power to the magnet in response to an electrical or electronic signal generated by the detector upon smoke or fire being detected.
Additionally or alternatively, an electric motor may be provided which operates to effect movement of the first hinge plate relative to the second hinge plate about the pin on which the two hinge plates are supported. The electric motor may be operated remotely in response to an electrical signal, for example an RF signal received from a hand-held signal initiating device.
In another aspect, the invention provides door closure apparatus comprising a hinge having a first hinge plate for attachment to one upstanding side edge of a door, a second hinge plate for attachment to an upstanding side edge of a doorpost and means for enabling relative rotation between the two hinge plates; a housing forming part of or supported by the second hinge plate; and means located within the housing for controlling movement of the door between its open and closed positions.
In a further aspect, the invention provides door closure apparatus including a hinge having first and second flange plates supported for relative rotation about a pin, a housing connected to one flange plate, a magnet located within the housing, and a keeper plate separate from the housing.
The magnet may be a permanent magnet or a mains-connected electromagnet.
The invention will now be described by way of example only with reference to the accompanying diagrammatic drawing in which the sole Figure is an exploded view of door closure apparatus in accordance with the invention.
The illustrated apparatus comprises a hinge 1 including a spindle about which can rotate a first hinge plate 2 formed with screw receiving holes to enable it to be secured to a side edge of a door (not shown) and a second hinge plate 3 formed with screw receiving holes to enable it to be secured to a doorpost (not shown).
The first hinge plate 2 carries a metallic keeper plate 4 having a screw receiving hole 5 to enable it to be attached to one face of the door. The keeper plate may be formed integrally with the first hinge plate 2. Generally, the keeper plate 4 will subtend a right angle to the first hinge plate. In an alternative arrangement, the keeper plate 4 is separate from the hinge plate 2.
The screws of the second hinge plate 3 pass through suitably aligned holes 6 formed in a flange 7 of a housing 8. Thus, on assembly the opposing faces of the second hinge plate 3 and the housing flange 7 are in contact one with the other and are secured to the doorpost by the same screw set.
The housing 8 comprises a backing plate 9 from which protrudes an electromagnet 10 connected through switches or electrical connections 11 to a mains source of electricity. The housing includes a removable cover 12 connectable to the backing plate 9 by screws which pass through holes 14 formed in one side wall 15 of the housing and holes 16 formed in angled projections 17 attached to the backing plate 9. The cover includes a front opening 18 by which the face end of the electromagnet 10 is exposed.
In use, the keeper plate 4 is sited opposite the exposed end of the electromagnet 10 when the door is in its open position, these two elements co-operating to hold the door in its open position by the force of attraction between the electromagnet 10 and the keeper plate 4. The switches 11 may operate to switch off power to the electromagnet after a set period of time thereby imposing a delay on closure of the door. Alternatively or additionally, the force of attraction can readily be selected to control the speed of movement of the door between its open and closed positions.
The switches 11 may operate in response to an electrical or electronic signal received from a smoke and/or fire detecting device. Thus, upon smoke or fire being detected, power to the electromagnet is switched off to cause the door immediately to move to its closed position.
An electric motor may be provided selectively to impart movement of the hinge plate 2 and therefore the door. The motor may be operated remotely via a hand-held RF signal generator. It will be appreciated that the foregoing is merely exemplary of door closure apparatus in accordance with the invention and that changes can readily be made thereto without departing from the invention described above.

Claims

1. door closure apparatus comprising a hinge having a first hinge plate for attachment to one upstanding side edge of a door, a second hinge plate for attachment to an upstanding side edge of a doorpost and means for enabling relative rotation between the two hinge plate; and magnetic means comprising a first element which includes a magnet and a second element which includes a keeper plate to which the magnet is attracted; one of the elements of the magnetic means being supported from the second hinge plate and the other of the elements being supported by the first hinge plate or the door, the arrangement being such that the elements of the magnetic means co-operate to or control movement of the door between its open and closed position.
2. Apparatus as claimed in claim 1 wherein a housing forms part of, is secured to or is supported by the second flange plate, the housing being dimensioned to receive and retain the said one element of the magnetic means.
3. Apparatus as claimed in claim 2 wherein the side of the housing closest to the door is formed with an opening through which one end of the said one element is exposed.
4. Apparatus as claimed in any one of the preceding claims wherein the said one element of the magnetic means is the magnet.
5. Apparatus as claimed in any one of the preceding claims wherein the said other element of the magnetic means is secured to a door face surface which, when the door is in its open position, lies directly opposite and possibly in contact with said one element of the magnetic means.
6. Apparatus as claimed in any one of the preceding claims wherein the said second element of the magnetic means is the keeper plate.
7. Apparatus as claimed in any one of the preceding claims wherein the first element of the magnetic means comprises an electromagnet.
8 Apparatus as claimed in any one of the preceding claims wherein the first element of the magnetic means comprises a permanent magnet.
9. Apparatus as claimed in claim 7 wherein a switching mechanism is provided which enables power to be maintained to the electric magnet to retain the door in its open position for a set period of time or until re-operation of the switching mechanism.
10. Apparatus as claimed in claim 9 wherein the switching mechanism is positioned within the housing.
11. Apparatus as claimed in any one of the preceding claims wherein an electric motor is provided which operates to effect movement of the first hinge plate relative to the second hinge plate about the pin on which the two hinge plates are supported.
12. Apparatus as claimed in claim 11 wherein the electric motor is operated remotely in response to an electrical signal.
13. Apparatus as claimed in claim 12 wherein the signal is an RF signal received from a hand-held signal initiating device.
14. Door closure apparatus comprising a hinge having a first hinge plate for attachment to one upstanding side edge of a door, a second hinge plate for attachment to an upstanding side edge of a doorpost and means for enabling relative rotation between the two hinge plates; a housing forming part of or supported by the second hinge plate; and means located within the housing for controlling movement of the door between its open and closed positions.
5. Door closure apparatus including a hinge having first and second flange plates supported for relative rotation about a pin, a housing connected to one flange plate, a magnet located within the housing, and a keeper plate separate from the housing.
EP02804953A 2001-12-19 2002-12-11 Door closure apparatus Expired - Lifetime EP1456492B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0130247 2001-12-19
GB0130247A GB2383377B (en) 2001-12-19 2001-12-19 Door closure apparatus
PCT/GB2002/005621 WO2003052225A1 (en) 2001-12-19 2002-12-11 Door closure apparatus

Publications (2)

Publication Number Publication Date
EP1456492A1 true EP1456492A1 (en) 2004-09-15
EP1456492B1 EP1456492B1 (en) 2005-09-28

Family

ID=9927849

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02804953A Expired - Lifetime EP1456492B1 (en) 2001-12-19 2002-12-11 Door closure apparatus

Country Status (7)

Country Link
EP (1) EP1456492B1 (en)
AT (1) ATE305556T1 (en)
AU (1) AU2002356287A1 (en)
DE (1) DE60206415T2 (en)
ES (1) ES2261790T3 (en)
GB (1) GB2383377B (en)
WO (1) WO2003052225A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006114612A1 (en) * 2005-04-26 2006-11-02 Mark Batt-Rawden Door retainer
CN109098563A (en) * 2018-09-14 2018-12-28 漯河市宏力电器有限公司 A kind of self-locking gear of batch meter

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1029259C2 (en) * 2005-06-15 2006-12-18 Joseph Hubertus Antoni Maussen Hinge with three part construction, useful for doors for e.g. bars and nightclubs, has parts arranged parallel and two of these parts can be fixed together magnetically
DE102006019087B4 (en) * 2006-04-23 2008-11-06 Nt Neue Technik Elektronik Gmbh Method and device for fixing and locating an object in an end position and for releasing from this end position
CN102112692B (en) 2007-08-06 2014-08-06 迈克尔·克里斯多佛·斯图尔特 Hinge
AU201612445S (en) 2016-05-05 2016-08-05 Hinge
EP4076201B1 (en) * 2019-12-19 2023-05-24 Koninklijke Philips N.V. Breakaway hinge for a portable medical device access door

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3016563A (en) * 1959-03-04 1962-01-16 Jong George Edward De Combined hinge and catch
FR1391119A (en) * 1964-01-23 1965-03-05 Improvement of the hinges
US5235933A (en) * 1992-12-07 1993-08-17 Robert Pare Indicator device
US5930954A (en) * 1994-05-16 1999-08-03 Hebda; Thomas J. Remote control door operating device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03052225A1 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006114612A1 (en) * 2005-04-26 2006-11-02 Mark Batt-Rawden Door retainer
CN109098563A (en) * 2018-09-14 2018-12-28 漯河市宏力电器有限公司 A kind of self-locking gear of batch meter
CN109098563B (en) * 2018-09-14 2021-07-09 漯河汇力实业(集团)有限公司 Automatic locking device of metering box

Also Published As

Publication number Publication date
GB0130247D0 (en) 2002-02-06
GB2383377B (en) 2005-02-02
WO2003052225A1 (en) 2003-06-26
GB2383377A (en) 2003-06-25
DE60206415T2 (en) 2006-06-22
EP1456492B1 (en) 2005-09-28
DE60206415D1 (en) 2006-02-09
ATE305556T1 (en) 2005-10-15
AU2002356287A1 (en) 2003-06-30
ES2261790T3 (en) 2006-11-16

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