EP2993292A1 - Concealed door operator - Google Patents

Concealed door operator Download PDF

Info

Publication number
EP2993292A1
EP2993292A1 EP14003053.7A EP14003053A EP2993292A1 EP 2993292 A1 EP2993292 A1 EP 2993292A1 EP 14003053 A EP14003053 A EP 14003053A EP 2993292 A1 EP2993292 A1 EP 2993292A1
Authority
EP
European Patent Office
Prior art keywords
door operator
housing
concealed door
cover plate
mounting
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.)
Withdrawn
Application number
EP14003053.7A
Other languages
German (de)
French (fr)
Inventor
Thomas Salutzki
Egbert Becker
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.)
Dorma Deutschland GmbH
Original Assignee
Dorma Deutschland GmbH
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 Dorma Deutschland GmbH filed Critical Dorma Deutschland GmbH
Priority to EP14003053.7A priority Critical patent/EP2993292A1/en
Priority to CN201410667901.6A priority patent/CN105649458A/en
Priority to CN201420700343.4U priority patent/CN204457233U/en
Publication of EP2993292A1 publication Critical patent/EP2993292A1/en
Withdrawn legal-status Critical Current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
    • 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
    • E05F3/225—Additional arrangements for closers, e.g. for holding the wing in opened or other position mounted at the bottom of wings, e.g. details related to seals, covers, connections to the wings, embedding in the floor
    • 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
    • E05F3/04—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
    • E05F3/104—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 cam-and-slide transmission between driving shaft and piston within the closer housing
    • 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
    • E05Y2201/10—Covers; Housings
    • 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
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/40—Mounting location; Visibility of the elements
    • E05Y2600/41—Concealed
    • 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
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/40—Mounting location; Visibility of the elements
    • E05Y2600/46—Mounting location; Visibility of the elements in or on the wing

Definitions

  • the present invention regards concealed door operators. Such door operators are used for providing an opening or closing force to a door.
  • concealed door operators are well-known from the prior art. Concealed door operators are hidden within a door leaf or a floor or a wall, such that no visible unit needs to be provided on the door.
  • Conventional concealed door operators comprise a cast housing and a mounting plate. The housing is connected to the mounting plate via mounting screws. The resulting unit is then installed in a cavity of a door leaf. The final connection of the concealed door operator to the door leaf is realized via the mounting plate.
  • the mounting plate comprises holes such that additional mounting screws can be used for fixing the mounting plate to the door leaf. Therefore, a lot of steps are necessary to install the concealed door operator within the door leaf.
  • a concealed door operator comprising an operating unit and a housing.
  • the operating unit is provided within the housing.
  • the concealed door operator comprises a mounting plate having mounting features for fixing the concealed door operator to a door leaf or a floor or a wall.
  • the mounting features can be flanges or boreholes for mounting the concealed door operator.
  • the mounting features are integrally mounted with the housing.
  • the concealed door operator further comprises a cover plate.
  • the mounting plate comprises a cutout. In the cutout said cover plate is provided.
  • the cover plate is fixed only to the mounting plate or the housing.
  • the cover plate is smaller than the mounting plate such that the mounting plate functions as frame for the cover plate.
  • the mounting plate is preferably formed integrally with the housing. Therefore, the production time is decreased since only one element has to be produced. Any prior art concealed door operator requires a production of two elements, the mounting plate and the housing.
  • the cover plate fills the cutout completely. Therefore, no cavity is accessible from outside the housing and/or the mounting plate such that debris infiltration is effectively prevented.
  • the cover plate only functions as cover of the cutout.
  • the cover plate comprises at least one through hole for fixing the cover plate on the housing. Said fixing is especially realized with mounting screws. There is no mounting functionality of the cover plate since the concealed door operator is fixed to a door leaf or a ground or a wall via the housing itself.
  • the housing particularly comprises a cavity.
  • the cavity is especially consistent with the cutout of the mounting plate. Therefore, the cover plate covers the cavity and the cutout. This allows reducing the manufacturing costs of the concealed door operator, since less material is required for manufacturing as compared with the prior art.
  • the concealed door operator is preferably characterized in that the housing is a cast housing.
  • the cast housing can be provided with stiffening means or enhanced wall sections. Further, any cast housing is simple to manufacture and low in cost. Nevertheless, the cast housing is designed to provide maximum durability during the lifecycle of the concealed door operator.
  • the cover plate is made of plastics.
  • the cover plate is made of metal, in particular anodized or non anodized aluminum, galvanized steel or stainless steel.
  • the top cover, the mounting plate or the housing can be painted with different colors.
  • the operating unit has a square pinion allowing transmittal of torque from or to the operating unit.
  • the square pinion protrudes from the mounting plate and/or the cover plate.
  • the whole operating unit is provided within the housing with the square pinion being the only part of the operating unit which is accessible from outside the housing.
  • the operating unit is a door closing unit. Therefore, the door can be opened manually and is closed by the concealed door operator. Since the door operator is concealed, there is no visible unit provided on the door such that an esthetic appeal is maintained.
  • the operating unit comprises an operating piston and a damping piston. Both, the operating piston and the damping piston are engaged with a pinion cam for transforming the longitudinal movement of the pistons into a rotational movement of the pinion cam.
  • the concealed door operator can be installed in any door independent from the opening direction of the door.
  • the pinion cam can be rotated clockwise or counterclockwise while in both cases load is provided to the operating unit.
  • the operating unit also comprises an operating piston and a damping piston.
  • the operating piston and the damping piston are connected to a rack with a pinion engaged with the rack for transforming the longitudinal movement of the pistons and the rack into a rotational movement of the pinion.
  • This design allows an installation of the concealed door operator only in doors having a predetermined opening direction. Therefore, the concealed door operator is preferably provided in two versions, in the one version the pinion needs to be rotated clockwise for providing load to the operating unit, in the other version the pinion needs to be rotated counterclockwise for providing load to the operating unit.
  • the housing particularly comprises an opening for removing and/or inserting at least parts of the operating unit.
  • the opening is preferably covered by an end cap.
  • the end cap is designed to withstand loads applied by the operating unit when moving the door.
  • the housing comprises a reinforced wall section around the opening. This is to enhance the durability of the housing to withstand the pressure loads applied to the end cap.
  • Figure 1 shows a concealed door operator 1 according to an exemplary embodiment of the present invention.
  • the concealed door operator 1 comprises a housing 2, in which an operating unit 3 is provided.
  • the operating unit 3 is adapted to operate a door equipped with the concealed door operator 1.
  • the concealed door operator 1 can be provided within a cavity of a door leaf.
  • the operating unit 3 For operating the door, i.e. for opening or closing the door, the operating unit 3 comprises a square pinion 4, which is the only part of the operating unit 3 being accessible from outside the housing.
  • the square pinion 4 can be connected to a level arm which is supported on a wall.
  • the square pinion 4 When opening or closing the door, the square pinion 4 is rotated and a load is applied to the operating unit 3.
  • This energy is stored within the operating unit 3 and can be used for operating the door.
  • energy is stored within the operating unit 3 when opening the door such that the concealed door closer 1 can use the stored energy for closing the door.
  • the concealed door operator 1 further comprises a mounting plate 11. On the mounting plate 11, mounting features 5 are provided.
  • the mounting features 5 comprise flanges and through holes for mounting the concealed door operator 1 on a door leaf or a wall or a floor.
  • the concealed door operator 1 is installed within a cavity of the door leaf, while the flanges of the mounting features 5 are disposed on surfaces outside the cavity. Mounting screws can be used for fixing the flanges via the holes of the mounting features 5.
  • the mounting plate 11 is formed integrally with the housing 2.
  • the housing 2 and the mounting plate 11 are preferably a single cast piece, which can be made from aluminum or iron.
  • the housing 2 comprises a cavity, which is located underneath a cutout 10 (see figure 2 ) of the mounting plate 11.
  • the cutout 10 is not an opening of the housing 2 such that the operating is not accessible from the cutout.
  • the cutout 10 is covered by a cover plate 12.
  • the cover plate 12 is provided within the cutout 10, such that the mounting plate 11 functions as frame of the cover plate 12.
  • the cover plate 12 can be made from metal such as aluminum or from plastics.
  • the cover plate 12 comprises through holes 12.
  • the through holes 12 are provided for fixing the cover plate 12 to the housing 2 via fixing screws.
  • the cover plate 12 is only connected to the housing.
  • the cover plate 12 does not provided any mounting features for mounting the concealed door operator, since the mounting features 5 are all provided with the housing 2 itself.
  • the square pinion 4 is protruding from the mounting plate 11 and from the cover plate 12.
  • the cover plate 12 comprises a hole for inserting the square pinion 4 through.
  • Figure 2 shows the concealed door operator 1 of figure 1 without the cover plate 12.
  • the housing comprises a cavity which is located underneath the cutout 10 of the mounting plate 11.
  • the inventive concealed door operator 1 is simple to manufacture and low in cost. Therefore, the concealed door operator 1 provides several advantages compared with commonly known concealed door operators.

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

Abstract

The invention regards a concealed door operator (1), comprising a housing (2), an operating unit (3) provided within the housing (2), a mounting plate (11) comprising mounting features (5) for fixing the concealed door operator (1) to a door leaf or a floor or a wall, and wherein said mounting plate (11) has a cutout (10) in which a cover plate (12) is provided.

Description

  • The present invention regards concealed door operators. Such door operators are used for providing an opening or closing force to a door.
  • In general, concealed door operators are well-known from the prior art. Concealed door operators are hidden within a door leaf or a floor or a wall, such that no visible unit needs to be provided on the door. Conventional concealed door operators comprise a cast housing and a mounting plate. The housing is connected to the mounting plate via mounting screws. The resulting unit is then installed in a cavity of a door leaf. The final connection of the concealed door operator to the door leaf is realized via the mounting plate. The mounting plate comprises holes such that additional mounting screws can be used for fixing the mounting plate to the door leaf. Therefore, a lot of steps are necessary to install the concealed door operator within the door leaf.
  • It is an object underlying the present invention to provide a low-maintenance concealed door operator which is simple to manufacture and install.
  • The solution of this object is achieved by the features of claim 1. Therefore, the object is solved by a concealed door operator comprising an operating unit and a housing. The operating unit is provided within the housing. Further, the concealed door operator comprises a mounting plate having mounting features for fixing the concealed door operator to a door leaf or a floor or a wall. The mounting features can be flanges or boreholes for mounting the concealed door operator. In particular, the mounting features are integrally mounted with the housing. The concealed door operator further comprises a cover plate. In order to save material, the mounting plate comprises a cutout. In the cutout said cover plate is provided. Preferably, the cover plate is fixed only to the mounting plate or the housing. In particular, the cover plate is smaller than the mounting plate such that the mounting plate functions as frame for the cover plate.
  • The dependent claims comprise advantageous embodiments of the present invention.
  • The mounting plate is preferably formed integrally with the housing. Therefore, the production time is decreased since only one element has to be produced. Any prior art concealed door operator requires a production of two elements, the mounting plate and the housing.
  • In a preferred embodiment, the cover plate fills the cutout completely. Therefore, no cavity is accessible from outside the housing and/or the mounting plate such that debris infiltration is effectively prevented.
  • The cover plate only functions as cover of the cutout. In particular, the cover plate comprises at least one through hole for fixing the cover plate on the housing. Said fixing is especially realized with mounting screws. There is no mounting functionality of the cover plate since the concealed door operator is fixed to a door leaf or a ground or a wall via the housing itself.
  • In order to save material, the housing particularly comprises a cavity. The cavity is especially consistent with the cutout of the mounting plate. Therefore, the cover plate covers the cavity and the cutout. This allows reducing the manufacturing costs of the concealed door operator, since less material is required for manufacturing as compared with the prior art.
  • The concealed door operator is preferably characterized in that the housing is a cast housing. The cast housing can be provided with stiffening means or enhanced wall sections. Further, any cast housing is simple to manufacture and low in cost. Nevertheless, the cast housing is designed to provide maximum durability during the lifecycle of the concealed door operator.
  • Particularly, the cover plate is made of plastics. In an alternative embodiment, the cover plate is made of metal, in particular anodized or non anodized aluminum, galvanized steel or stainless steel. Further, the top cover, the mounting plate or the housing can be painted with different colors.
  • In a preferred embodiment, the operating unit has a square pinion allowing transmittal of torque from or to the operating unit. The square pinion protrudes from the mounting plate and/or the cover plate. In a preferred embodiment, the whole operating unit is provided within the housing with the square pinion being the only part of the operating unit which is accessible from outside the housing.
  • In a preferred embodiment of the concealed door operator, the operating unit is a door closing unit. Therefore, the door can be opened manually and is closed by the concealed door operator. Since the door operator is concealed, there is no visible unit provided on the door such that an esthetic appeal is maintained.
  • Preferably, the operating unit comprises an operating piston and a damping piston. Both, the operating piston and the damping piston are engaged with a pinion cam for transforming the longitudinal movement of the pistons into a rotational movement of the pinion cam. With such a design, the concealed door operator can be installed in any door independent from the opening direction of the door. The pinion cam can be rotated clockwise or counterclockwise while in both cases load is provided to the operating unit.
  • In another preferred embodiment, the operating unit also comprises an operating piston and a damping piston. The operating piston and the damping piston are connected to a rack with a pinion engaged with the rack for transforming the longitudinal movement of the pistons and the rack into a rotational movement of the pinion. This design allows an installation of the concealed door operator only in doors having a predetermined opening direction. Therefore, the concealed door operator is preferably provided in two versions, in the one version the pinion needs to be rotated clockwise for providing load to the operating unit, in the other version the pinion needs to be rotated counterclockwise for providing load to the operating unit.
  • The housing particularly comprises an opening for removing and/or inserting at least parts of the operating unit. The opening is preferably covered by an end cap. The end cap is designed to withstand loads applied by the operating unit when moving the door. Further, the housing comprises a reinforced wall section around the opening. This is to enhance the durability of the housing to withstand the pressure loads applied to the end cap. Such an optimal design with selective stiffness enhancing integrally incorporated to the housing minimizes part and material usage while enhancing the stability and durability of the concealed door operator.
  • In the following, preferred exemplary embodiments of the invention are explained with reference to the drawings. In the drawings:
    • Fig. 1
    is a schematic drawing showing an exemplary embodiment of the concealed door operator according to the invention.
    Fig. 2
    is another schematic drawing showing an exemplary embodiment of the concealed door operator according to the invention.
  • Figure 1 shows a concealed door operator 1 according to an exemplary embodiment of the present invention.
  • The concealed door operator 1 comprises a housing 2, in which an operating unit 3 is provided. The operating unit 3 is adapted to operate a door equipped with the concealed door operator 1. In particular, the concealed door operator 1 can be provided within a cavity of a door leaf.
  • For operating the door, i.e. for opening or closing the door, the operating unit 3 comprises a square pinion 4, which is the only part of the operating unit 3 being accessible from outside the housing. The square pinion 4 can be connected to a level arm which is supported on a wall. When opening or closing the door, the square pinion 4 is rotated and a load is applied to the operating unit 3. This energy is stored within the operating unit 3 and can be used for operating the door. For example, energy is stored within the operating unit 3 when opening the door such that the concealed door closer 1 can use the stored energy for closing the door.
  • The concealed door operator 1 further comprises a mounting plate 11. On the mounting plate 11, mounting features 5 are provided. The mounting features 5 comprise flanges and through holes for mounting the concealed door operator 1 on a door leaf or a wall or a floor. In one embodiment, the concealed door operator 1 is installed within a cavity of the door leaf, while the flanges of the mounting features 5 are disposed on surfaces outside the cavity. Mounting screws can be used for fixing the flanges via the holes of the mounting features 5.
  • To provide a concealed door operator 1 which is simple to manufacture, the mounting plate 11 is formed integrally with the housing 2. The housing 2 and the mounting plate 11 are preferably a single cast piece, which can be made from aluminum or iron.
  • In order to save material, the housing 2 comprises a cavity, which is located underneath a cutout 10 (see figure 2) of the mounting plate 11. The cutout 10 is not an opening of the housing 2 such that the operating is not accessible from the cutout.
  • The cutout 10 is covered by a cover plate 12. The cover plate 12 is provided within the cutout 10, such that the mounting plate 11 functions as frame of the cover plate 12. The cover plate 12 can be made from metal such as aluminum or from plastics.
  • Further, the cover plate 12 comprises through holes 12. The through holes 12 are provided for fixing the cover plate 12 to the housing 2 via fixing screws. As can be seen from figure 1, the cover plate 12 is only connected to the housing. In particular, the cover plate 12 does not provided any mounting features for mounting the concealed door operator, since the mounting features 5 are all provided with the housing 2 itself.
  • As can be further seen from figure 1, the square pinion 4 is protruding from the mounting plate 11 and from the cover plate 12. Hence, the cover plate 12 comprises a hole for inserting the square pinion 4 through.
  • Figure 2 shows the concealed door operator 1 of figure 1 without the cover plate 12. As can be seen from figure 2, the housing comprises a cavity which is located underneath the cutout 10 of the mounting plate 11.
  • The inventive concealed door operator 1 is simple to manufacture and low in cost. Therefore, the concealed door operator 1 provides several advantages compared with commonly known concealed door operators.
    • Reference numerals
    • 1
    concealed door operator
    2
    housing
    3
    operating unit
    4
    square pinion
    5
    mounting feature
    6
    top face
    7
    bottom face
    8
    side face
    9
    end cap
    10
    cutout
    11
    mounting plate
    12
    cover plate
    13
    through hole

Claims (10)

  1. Concealed door operator (1), comprising
    - a housing (2),
    - an operating unit (3) provided within the housing (2),
    - a mounting plate (11) comprising mounting features (5) for fixing the concealed door operator (1) to a door leaf or a floor or a wall, and
    - wherein said mounting plate (11) has a cutout (10) in which a cover plate (12) is provided.
  2. Concealed door operator (1) according to claim 1, characterized in that the mounting plate (11) is formed integrally with the housing (2).
  3. Concealed door operator (1) according to claim 1 or 2, characterized in that the cover plate (12) fills the cutout completely.
  4. Concealed door operator (1) according to one of claims 1 to 3, characterized in that the cover plate (12) comprises at least one through hole (13) for mounting the cover plate (12) on the housing (2), in particular via a mounting screw.
  5. Concealed door operator (1) according to one of claims 1 to 4, characterized in that the housing (2) comprises a cavity, wherein the cover plate (12) covers the cavity.
  6. Concealed door operator (1) according to one of claims 1 to 5, characterized in that the housing (2) is a cast housing.
  7. Concealed door operator (1) according to one of claims 1 to 6, characterized in that the cover plate (12) is made of plastics.
  8. Concealed door operator (1) according to one of claims 1 to 6, characterized in that the cover plate (12) is made of metal, in particular anodized or non anodized aluminum, galvanized steel or stainless steel.
  9. Concealed door operator (1) according to one of the claims 1 to 8, characterized in that the operating unit (3) has a square pinion (4) allowing transmittal of torque from or to the operating unit (3), wherein square pinion (4) protrudes from the mounting plate (11) and/or the cover plate (12).
  10. Concealed door operator (1) according to one of the claims 1 to 9, characterized in that the operating unit (3) is a door closing unit.
EP14003053.7A 2014-09-04 2014-09-04 Concealed door operator Withdrawn EP2993292A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP14003053.7A EP2993292A1 (en) 2014-09-04 2014-09-04 Concealed door operator
CN201410667901.6A CN105649458A (en) 2014-09-04 2014-11-17 Concealed door operator
CN201420700343.4U CN204457233U (en) 2014-09-04 2014-11-17 Hidden door controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14003053.7A EP2993292A1 (en) 2014-09-04 2014-09-04 Concealed door operator

Publications (1)

Publication Number Publication Date
EP2993292A1 true EP2993292A1 (en) 2016-03-09

Family

ID=51690173

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14003053.7A Withdrawn EP2993292A1 (en) 2014-09-04 2014-09-04 Concealed door operator

Country Status (2)

Country Link
EP (1) EP2993292A1 (en)
CN (2) CN204457233U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US799342A (en) * 1904-08-06 1905-09-12 Yale & Towne Mfg Co Combined floor-hinge, door check and closer.
EP2345788A2 (en) * 2010-01-19 2011-07-20 Taiwan Daedalus Door Control, Co., Ltd. Door closer kit for double swing door

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US799342A (en) * 1904-08-06 1905-09-12 Yale & Towne Mfg Co Combined floor-hinge, door check and closer.
EP2345788A2 (en) * 2010-01-19 2011-07-20 Taiwan Daedalus Door Control, Co., Ltd. Door closer kit for double swing door

Also Published As

Publication number Publication date
CN204457233U (en) 2015-07-08
CN105649458A (en) 2016-06-08

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