EP0894932B1 - Arrangement for door closers and/or door openers - Google Patents

Arrangement for door closers and/or door openers Download PDF

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Publication number
EP0894932B1
EP0894932B1 EP98850090A EP98850090A EP0894932B1 EP 0894932 B1 EP0894932 B1 EP 0894932B1 EP 98850090 A EP98850090 A EP 98850090A EP 98850090 A EP98850090 A EP 98850090A EP 0894932 B1 EP0894932 B1 EP 0894932B1
Authority
EP
European Patent Office
Prior art keywords
teeth
force transmitting
transmitting device
arrangement
rotatable
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.)
Expired - Lifetime
Application number
EP98850090A
Other languages
German (de)
French (fr)
Other versions
EP0894932A2 (en
EP0894932A3 (en
Inventor
Göran Nilsson Bengt
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.)
Assa Abloy IP AB
Original Assignee
Besam AB
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 Besam AB filed Critical Besam AB
Publication of EP0894932A2 publication Critical patent/EP0894932A2/en
Publication of EP0894932A3 publication Critical patent/EP0894932A3/en
Application granted granted Critical
Publication of EP0894932B1 publication Critical patent/EP0894932B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
    • E05F3/10—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction
    • E05F3/102—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction with rack-and-pinion transmission between driving shaft and piston within the closer housing
    • 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
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/22—Additional arrangements for closers, e.g. for holding the wing in opened or other position
    • E05F3/224—Additional arrangements for closers, e.g. for holding the wing in opened or other position for assisting in opening the wing
    • 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
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
    • E05F15/63—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by swinging arms
    • 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
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/22—Additional arrangements for closers, e.g. for holding the wing in opened or other position
    • 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
    • E05Y2201/404—Function thereof
    • E05Y2201/422—Function thereof for opening
    • 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
    • E05Y2201/43—Motors
    • E05Y2201/434—Electromotors; Details thereof
    • 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
    • E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/10—Electronic control
    • E05Y2400/30—Electronic control of motors
    • E05Y2400/3013—Electronic control of motors during manual wing operation
    • E05Y2400/3015—Power assistance
    • 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

  • the invention refers to an arrangement used with mechanically operated doors, preferably doors where the movement of a linearly operating motor such as a piston cylinder unit or similar actuates a rotating component that is in turn coupled together with a mechanism that actuates the door.
  • a linearly operating motor such as a piston cylinder unit or similar actuates a rotating component that is in turn coupled together with a mechanism that actuates the door.
  • door openers utilise, together with a pressure-operated cylinder, a displaceable component body that is furnished with a gear or teeth, plus a gear wheel arranged with its axis of rotation across the direction of movement of this body, and that is in turn joined to a mechanism that operates the doorleaf (see WO-A-9502107). Arrangements of this type are on their manufacturing set to rotate the teeth wheel in a specific direction. This means that two different door opening units must be supplied, even if - when space permits - one can in emergencies use a left-handed door opener for a right-handed door and vice versa by turning the opener upside down.
  • the essential objective of the invention is to accomplish an arrangement that can be set up at the point of installation to operate together with a right-handed or a left-handed door according to need.
  • a pressure-operated piston or the like displaceable body provided with double rows of teeth that are opposite to each other, and a toothed wheel supported by a bearing device so arranged that the axis of rotation of the wheel can be displaced between two positions located on either side of a centre plane running between the rows of teeth, whereby in one of these positions, the toothed wheel engages the rack or row of teeth arranged to bring about movement of the toothed wheel in the one direction, while in the opposite position, the toothed wheel engages the rack or row of teeth arranged to bring about movement of the toothed wheel in the opposite direction.
  • the displacement of the toothed wheel is accomplished in that its axle is eccentrically mounted in the bearing device in turn arranged to be supported and rotate in a circular seat at the frame of the arrangement.
  • the operating mechanism proper is designated 2. It includes a frame 3 with a cylinder 4, fig 4, in which one part, as an unit designated 6, is movable in order to turn an axle 7.
  • a system of arms 8, 9 (Fig. 1) is connected to the axle 7, of which an outer arm 9 is intended to be connected to the doorleaf whose movement is to be controlled by the unit 1.
  • the closing movement is accomplished by a spring 10 partly shown in fig 4 and biassing part 6, whereas the opening movement is accomplished by hydraulic means in that a motor 11, with the help of a pump 12, generates a pressure in the cylinder 4. This pressure, working against the closing spring 10, displaces the piston device on part 6 in the opening direction.
  • the piston part 6 is rigidly connected to a part 13 and from this the linear reciprocating movement of part 6 is transferred to the arm system 8, 9 by means of a toothed wheel 14, the axle 7 of which is carried by the frame 3 as described below, by its teeth engaging one row of teeth 15 on the portion 13 of part 6.
  • two opposite rows of teeth, 15a and 15b respectively, are arranged on the displaceable part 13 of part 6.
  • the axle 7 supporting the toothed wheel 14, the free end of which is intended to be connected to the arm system 8,9, is eccentrically mounted with at the bearing parts 16 cooperating therewith.
  • These bearing parts have cylindrical circumferential contact surfaces resting in cylindrical seats arranged in frame 3. This means that the bearing parts with the bearings in which the toothed wheel 14 axle 7 is housed, together with the axle and toothed wheel, can be moved into different turning positions relative to the frame.
  • a turning of the said bearing parts 16 means results in a shifting of the rotation axis of the toothed wheel relative to the rows of teeth 15a, 15b. This means that by turning to a first position, the toothed wheel 14 can be made engage the one row of teeth 15a, and by turning to a second position, be made engage the other row of teeth 15b.
  • the part 6 including the piston section and part 13 are made as a unit and the latter part has an elongated opening 18 extending in the axial direction. Along the opposing sides of the opening, the teeth 15a and 15b are arranged.
  • the bearing parts have protruding flanges 16 that rest against the exterior of the frame 3 and that are furnished with slot-shaped cavities for locking screws 20. By loosening the locking screws 20, the bearing units are freed from the frame 3 and can be turned in one direction or the other and then be re-secured by means of the screws. The eccentricity of the position of the bearing parts is then adjusted so that a shifting or, more correctly, a turning of the bearing parts between their outer or end positions causes a shifting of the bearing parts and the toothed wheel 14 from engaging the row of teeth on the one side to the row of teeth of the other side.
  • this arrangement can also be used with apparatuses only function of which is to close doors where the opening causes an accumulation of force in a spring or similar device to utilised to give a driving force for a closing movement suitably controlled in a per se known way by a hydraulic system of control.
  • the arrangement can naturally be used for other types of operating mechanisms than hydraulic ones, for example linear motors and the like.

Landscapes

  • Power-Operated Mechanisms For Wings (AREA)
  • Refrigerator Housings (AREA)
  • Wing Frames And Configurations (AREA)

Abstract

Arrangement for operating devices for mechanically operated doors with a driving mechanism and a manoeuvring mechanism including a rotatable device in the form of a cog wheel and a linear device furnished with cogs that interact with the cog wheel. The novel aspect is that two linear devices furnished with cogs are arranged with a distance between one another with the cog wheel between them, whereby the size of the cog wheel is adapted to this distance so that it is only able to engage with one row of cogs at a time, and that the cog wheel is mounted in a housing (17) that is displaceable relative to the frame on which the rows of cogs are mounted to allow the displacement of the cog wheel to engage in an operating position with one row of cogs at a time. <IMAGE>

Description

    Technical field
  • The invention refers to an arrangement used with mechanically operated doors, preferably doors where the movement of a linearly operating motor such as a piston cylinder unit or similar actuates a rotating component that is in turn coupled together with a mechanism that actuates the door.
    • The prior art
  • It is known that door openers utilise, together with a pressure-operated cylinder, a displaceable component body that is furnished with a gear or teeth, plus a gear wheel arranged with its axis of rotation across the direction of movement of this body, and that is in turn joined to a mechanism that operates the doorleaf (see WO-A-9502107). Arrangements of this type are on their manufacturing set to rotate the teeth wheel in a specific direction. This means that two different door opening units must be supplied, even if - when space permits - one can in emergencies use a left-handed door opener for a right-handed door and vice versa by turning the opener upside down.
    • The objective of the invention
  • The essential objective of the invention is to accomplish an arrangement that can be set up at the point of installation to operate together with a right-handed or a left-handed door according to need.
    • Summary of the invention
  • According to the invention, a pressure-operated piston or the like displaceable body provided with double rows of teeth that are opposite to each other, and a toothed wheel supported by a bearing device so arranged that the axis of rotation of the wheel can be displaced between two positions located on either side of a centre plane running between the rows of teeth, whereby in one of these positions, the toothed wheel engages the rack or row of teeth arranged to bring about movement of the toothed wheel in the one direction, while in the opposite position, the toothed wheel engages the rack or row of teeth arranged to bring about movement of the toothed wheel in the opposite direction. The displacement of the toothed wheel is accomplished in that its axle is eccentrically mounted in the bearing device in turn arranged to be supported and rotate in a circular seat at the frame of the arrangement.
    • Brief description of the drawings
  • The invention now will be described in greater detail with reference to the attached drawings where:
  • Fig 1 shows a door opener/closer according to the invention from above,
  • fig 2 shows a door opener/closer as seen from the front
  • fig 3 shows one end of the operating mechanism at a larger scale, and
  • fig 4 shows the same as fig 3 but in a longitudinal cross-section.
    • Description of a preferred embodiment
  • In the unit 1 for the opening and closing of a door shown in full in fig 1 and 2, the operating mechanism proper is designated 2. It includes a frame 3 with a cylinder 4, fig 4, in which one part, as an unit designated 6, is movable in order to turn an axle 7. A system of arms 8, 9 (Fig. 1) is connected to the axle 7, of which an outer arm 9 is intended to be connected to the doorleaf whose movement is to be controlled by the unit 1.
  • The closing movement is accomplished by a spring 10 partly shown in fig 4 and biassing part 6, whereas the opening movement is accomplished by hydraulic means in that a motor 11, with the help of a pump 12, generates a pressure in the cylinder 4. This pressure, working against the closing spring 10, displaces the piston device on part 6 in the opening direction. The piston part 6 is rigidly connected to a part 13 and from this the linear reciprocating movement of part 6 is transferred to the arm system 8, 9 by means of a toothed wheel 14, the axle 7 of which is carried by the frame 3 as described below, by its teeth engaging one row of teeth 15 on the portion 13 of part 6.
  • According to the invention, two opposite rows of teeth, 15a and 15b respectively, are arranged on the displaceable part 13 of part 6. The axle 7 supporting the toothed wheel 14, the free end of which is intended to be connected to the arm system 8,9, is eccentrically mounted with at the bearing parts 16 cooperating therewith.These bearing parts have cylindrical circumferential contact surfaces resting in cylindrical seats arranged in frame 3. This means that the bearing parts with the bearings in which the toothed wheel 14 axle 7 is housed, together with the axle and toothed wheel, can be moved into different turning positions relative to the frame. Since the toothed wheel and its axle 7 are eccentrically positioned relatively to the common axis of rotation of the bearing parts, a turning of the said bearing parts 16 means results in a shifting of the rotation axis of the toothed wheel relative to the rows of teeth 15a, 15b. This means that by turning to a first position, the toothed wheel 14 can be made engage the one row of teeth 15a, and by turning to a second position, be made engage the other row of teeth 15b.
  • In the practical embodiment, the part 6 including the piston section and part 13 are made as a unit and the latter part has an elongated opening 18 extending in the axial direction. Along the opposing sides of the opening, the teeth 15a and 15b are arranged.
  • The bearing parts have protruding flanges 16 that rest against the exterior of the frame 3 and that are furnished with slot-shaped cavities for locking screws 20. By loosening the locking screws 20, the bearing units are freed from the frame 3 and can be turned in one direction or the other and then be re-secured by means of the screws. The eccentricity of the position of the bearing parts is then adjusted so that a shifting or, more correctly, a turning of the bearing parts between their outer or end positions causes a shifting of the bearing parts and the toothed wheel 14 from engaging the row of teeth on the one side to the row of teeth of the other side.
  • This means that the installation engineer, by a simple manipulation can, set the door opening arrangement for a right hand or a left hand door on the installation of the door at its place.
  • It is obvious that this arrangement can also be used with apparatuses only function of which is to close doors where the opening causes an accumulation of force in a spring or similar device to utilised to give a driving force for a closing movement suitably controlled in a per se known way by a hydraulic system of control.
  • Even if the described off-centre arrangement is the best and simplest solution, a similar effect can be obtained by, for example, arranging guides for the bearing parts so that they together by means of screws or similar can displaced across the position of the two rows of teeth.
  • The arrangement can naturally be used for other types of operating mechanisms than hydraulic ones, for example linear motors and the like.

Claims (7)

  1. Arrangement for operating devices for mechanically operated doors including an operating mechanism (6), a first and a second force transmitting device (13, 14); and a control mechanism (2) arranged in a frame (3), wherein the operating mechanism (6) is arranged to give the first force transmitting device (13) a linear movement and said first force transmitting device in turn gives the second force transmitting device (14) a rotating or turning movement, and wherein the first force transmitting device (13) has at least one portion including a gear or a row of teeth (15a, 15b) in the direction of the linear movement, while the second force transmitting device (14), along at least part of its periphery, is provided with teeth that mesh with the teeth of the row of teeth arranged in the direction of linear movement, essentially rigidly connected with the operating mechanism(6)characterised in, that the first in linear directions movable force transmitting device (13) has two linear portions provided with teeth (15a,15b), the portions beeing opposed to and at a distance from each other,
    that the turnable or rotatable force transmitting device (14) which is provided with teeth is rotatable about an axis (7) that is essentially in parallel with and is extending between the planes of the two linear portions provided with teeth (15a,15b) and is mounted in transversally movably bearings between said planes,
    that the rotatable or turnable second force transmitting device (14) provided with teeth is localised between the linear portions (15a, 15b) provided with teeth and has a radial extension that allows meshing engagement with only one of the these linear portions at a time, and
    that a movable mounting (16, 17) allows the moving of the rotatable or turnable second force transmitting device (14) provided with teeth towards or away, respectively, from the linear portions provided with teeth (15a,15b), at each side thereof for engaging or disengaging one of said portions at a time.
  2. Arrangement according to claim 1 characterised in that the rotatable second force transmitting device provided with teeth (14) is mounted in a bearing device (16) that has circular supporting surfaces arranged to interact with a rotatable seat means arranged in the frame (3), that the axis of rotation of said second force transmitting device (14) is eccentrically arranged relatively to the axis of the bearing device and that the eccentrical arrangement between axis of said second force transmitting device (14) and the axis of the bearing device (16) is so adjusted that on turning of the bearing device (16) results in a displacement of the second force transmitting device (14) towards and away from the linear portions provided with teeth.
  3. Arrangement according to claim 1 or 2 characterised in that a locking mechanism (19) coacting with the bearing device (16) is arranged to keep the bearing device (16) in a specified set position or, after releasing, allow its rotating thereof to another position.
  4. Arrangement according to claim 1 or 2 characterised in that the second force transmitting device (14) has a diameter so defined that it in a first displacement position engages one of the two linear portions provided with teeth (15a) and in a second displacement position, engages the other of the two linear portions provided with teeth (15b) and that the eccentrical arrangement of the devices is so set, that by the turning of the bearing device (16), displacement of the mounting in devices (17) and thus of the second force transmitting device (14) from one position to the other is achieved.
  5. Arrangement according to claim 1, 2 or 3 characterised in that the operating mechanism includes a spring (10).
  6. Arrangement according to claim 1, 2 or 3 characterised in that the operating mechanism includes a pressure-affected piston cylinder arrangement (6).
  7. Arrangement according to claim 1, 2 or 3 characterised in that the operating mechanism includes a spring (10) for displacement of the first force transmitting device in one direction and a pressure-affected piston cylinder arrangement for displacement in the other direction.
EP98850090A 1997-06-02 1998-05-28 Arrangement for door closers and/or door openers Expired - Lifetime EP0894932B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9702085 1997-06-02
SE9702085A SE509527C2 (en) 1997-06-02 1997-06-02 Device for control system for power-operated doors

Publications (3)

Publication Number Publication Date
EP0894932A2 EP0894932A2 (en) 1999-02-03
EP0894932A3 EP0894932A3 (en) 1999-04-14
EP0894932B1 true EP0894932B1 (en) 2003-01-02

Family

ID=20407205

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98850090A Expired - Lifetime EP0894932B1 (en) 1997-06-02 1998-05-28 Arrangement for door closers and/or door openers

Country Status (4)

Country Link
EP (1) EP0894932B1 (en)
AT (1) ATE230461T1 (en)
DE (1) DE69810397T2 (en)
SE (1) SE509527C2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7152718B2 (en) 2002-04-16 2006-12-26 Illinois Tool Works Inc Damper
DE10325027B4 (en) * 2003-06-02 2007-04-05 Dorma Gmbh + Co. Kg Revolving door drive for an at least single-leaf door

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3059268A (en) * 1959-07-02 1962-10-23 Independent Lock Co Door closer
DE4323150B4 (en) * 1993-07-10 2004-09-23 Geze Gmbh Swing door drive

Also Published As

Publication number Publication date
EP0894932A2 (en) 1999-02-03
EP0894932A3 (en) 1999-04-14
SE509527C2 (en) 1999-02-08
DE69810397D1 (en) 2003-02-06
ATE230461T1 (en) 2003-01-15
SE9702085L (en) 1998-12-03
SE9702085D0 (en) 1997-06-02
DE69810397T2 (en) 2003-08-21

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