EP3333348A1 - Stellantrieb für motorisierte schwenktüren - Google Patents

Stellantrieb für motorisierte schwenktüren Download PDF

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Publication number
EP3333348A1
EP3333348A1 EP17205708.5A EP17205708A EP3333348A1 EP 3333348 A1 EP3333348 A1 EP 3333348A1 EP 17205708 A EP17205708 A EP 17205708A EP 3333348 A1 EP3333348 A1 EP 3333348A1
Authority
EP
European Patent Office
Prior art keywords
operator
rotation
door
motor
worm screw
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Withdrawn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
EP17205708.5A
Other languages
English (en)
French (fr)
Inventor
Simone Benetello
Bruno De Pieri
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 Entrance Systems AB
Original Assignee
Assa Abloy Entrance Systems 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 Assa Abloy Entrance Systems AB filed Critical Assa Abloy Entrance Systems AB
Publication of EP3333348A1 publication Critical patent/EP3333348A1/de
Withdrawn legal-status Critical Current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
    • 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
    • E05F15/616—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms
    • E05F15/622—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms using screw-and-nut mechanisms
    • 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
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/10—Additional functions
    • E05Y2800/108—Lubrication

Definitions

  • the present invention concerns operators for motorizing the opening and closing of a panel of a swing door or gate by swinging the panel about a door rotation axis, Zd.
  • the present invention proposes an enhanced operator requiring less to no periodic services by a specialized technician.
  • the operators of the present invention substantially simplify the periodic lubrication of the operator's geared transmission to a point that the end-user can do it itself.
  • Motorized swing doors or gates comprising a shutter swinging open and closed about a door rotation axis, Zd, are commonly used to shut off openings, both industrial such as in warehouses, supermarkets, or in industrial halls, and private, such as the entrance gates to a garage or garden, and the like.
  • These shutters must be at least partially rigid and generally comprise a solid panel or a gate with a relatively rigid frame, enclosing a less rigid structure such as a mesh, bars, fabric, and the like.
  • panel is used herein to encompass any kind of shutter suitable for use in a swing door.
  • One type of motorized swing doors uses an operator as illustrated in Figures 1 and 2 , comprising a motor (1m) and a geared transmission suitable for rotating a worm screw (1ws) about a longitudinal axis, Xs.
  • One end of the operator comprises a post fixing bracket (121) fixed to a static post (3) defining one edge of the opening to be closed, such as to be able to rotate about an operator rotation axis, Zo, parallel to and offset from the door rotation axis, Zd, by means of an operator hinge (1h).
  • An opposite end of the operator comprises a translating fixing bracket (131) comprising a fixing end fixed to the panel (2), and a nut end comprising a thread engaged in the worm screw, such that the rotation of the worm screw with respect to the nut end about the longitudinal axis, Xs, drives the translation of the nut end along said longitudinal axis, Xs.
  • the translation of the nut end along the worm screw drives the swinging of the panel about the door rotation axis, Zd, often defined by panel hinges (2h), thus controlling the opening and closing of the swing door.
  • the driving rotation of the motor (1m) is transmitted to the worm screw (1 ws) by means of a geared transmission including gears (1g) meshed together to form a gears train, as illustrated in Figures 2(b) and 3(a) (cf. dashed circle).
  • a geared transmission including gears (1g) meshed together to form a gears train, as illustrated in Figures 2(b) and 3(a) (cf. dashed circle).
  • the gears need be lubricated periodically for a good functioning of the operator.
  • geared transmissions are generally sealed from ambient in a housing (1c). Lubrication of the gears therefore requires the removal of the housing for getting access to the gears. This operation is not straightforward and for this reason a specialized technician is often required to visit periodically installed operators for swing doors. This is quite expensive and availabilities of specialized technicians are not always guaranteed.
  • the present invention concerns an operator for motorizing the opening and closing of a door panel of a swing door by rotation about a door rotation axis, Zd.
  • the operator comprises:
  • the operator of the present invention is characterized in that the housing is provided with a one-way valve which is naturally closed and can be opened by coupling a dispensing tube to the one-way valve, bringing the dispensing tube in fluid communication with the gears of the geared transmission.
  • the one-way valve is preferably selected from a grease nipple and a duck bill valve.
  • the present invention also concerns a motorized swing door for closing a space flanked at least at one side by a static post.
  • the motorized swing door comprises:
  • the swing door of the present invention is characterized in that the housing of the operator is provided with a one-way valve which is naturally closed and can be opened by coupling a dispensing tube to the one-way valve, bringing the dispensing tube in fluid communication with the gears of the geared transmission.
  • the operator is preferably as defined above and may comprise:
  • the present invention also concerns a kit of parts comprising:
  • the kit of parts may further comprise a device for pressurizing the source of lubricant for dispensing the lubricant through the dispensing tube.
  • the present invention also concerns the use of a one-way valve ads defined above for lubricating the geared transmission of an operator for motorizing the opening and closing of a swing door as defined supra.
  • the present invention concerns an operator (1) for motorizing the opening and closing of a door panel (2) of a swing door by rotation about a door rotation axis, Zd, said operator being of the type comprising
  • the geared transmission coupling the motor (1m) to the worm screw (1ws) comprises a train of gears (1g) meshed together.
  • the geared transmission may comprise any type of gears or cogwheels usually used in such gear trains, including spur gears, helical or double helical gears, bevel gears, spiral bevel gears, hypoid gears, crown gears, worm gears, epicyclic gears, and the like.
  • the gears and cogwheels must be lubricated periodically. In prior art operators, part of or the whole housing (1c) must be removed from the operator to access the geared transmission for lubricating the gears.
  • the housing (1c) is used for aesthetic reasons but also, and principally, for protecting the worm screw, gears, and motor from ambient aggressions, such as dust, particles, humidity, and the like.
  • the housing is therefore essential and cannot be made without. Removal of the housing for periodically lubricating the geared transmission must be carried out by a trained technician, and most end-users lack such training and must call an external technician for servicing their operators.
  • the present invention substantially simplifies the lubrication operation by providing a one-way valve (1v) which is naturally closed and can be opened by coupling to the one-way valve a lubricating tube (50d) thus bringing the dispensing tube in fluid communication with the gears of the geared transmission.
  • the gear is still enclosed within the housing, but accessible through the one-way valve.
  • a lid (1L) can be provided, which can easily be removed.
  • the lid (1L) can be opened by swinging it about hinges.
  • the lid can simply be removed from the housing.
  • Flow of a lubricant dispensed from a lubricant dispenser (50) through a dispensing tube (50d) coupled to the one-way valve can be driven by pressure from the dispenser or gravity. Even if the lubricant is injected into the geared transmission under pressure, it is preferred to also profit of the gravity for the lubricant to reach at least one gear of the gear of the geared transmission, so that the lubricant can be transferred to the other elements of the train of gears by rotation-contacts between the different meshed elements. Consequently, depending on the orientation of the longitudinal axis, Xs, when the operator is mounted on a swing door, the one-way valve is preferably located vertically above the gears of the geared transmission when the operator is mounted.
  • the longitudinal axis, Xs, of the worm screw is preferably substantially normal to the door rotation axis, Zd.
  • the longitudinal axis, Xs, of the worm screw is substantially horizontal.
  • the one-way valve can then be positioned at a portion of the housing located vertically above the gears, between the worm screw and the motor..
  • the one-way valve (1v) can preferably be selected from a grease nipple as illustrated in Figure 4 , and a duck bill valve as illustrated in Figure 5 .
  • Other types of one-way valves known in the art can be used instead.
  • Grease nipples (1v) are preferred because of their reliability and stability over long periods of time.
  • a grease nipple is a metal fitting used in the operator to feed lubricants, such as a lubricating grease, into the gear under moderate to high pressure using a grease gun (50).
  • a grease nipple comprises coupling means, such as a threaded connection (1vt) for permanently coupling it to the housing (1c).
  • the grease nipple may comprise a nipple connection for coupling the dispensing tube (50d) of a grease gun (50).
  • the pressure supplied by the grease gun forces a small captive bearing ball (1vb) in the fitting to move back against the force of its retaining spring (1vs).
  • the one-way valve opens under pressure to allow lubricant to pass through a channel (1vc) and flows into the gears (1g) of the geared transmission.
  • the ball (1vb) is driven back to its closed position by the bias of the retaining spring (1vs).
  • the ball excludes dirt and functions as a check valve to prevent grease escaping back out of the fitting.
  • the one way-valve can be a duck bill valve.
  • a duckbill valve is a valve, manufactured from rubber or synthetic elastomer, and shaped like the beak of a duck. It is commonly used in applications where backflow must be prevented.
  • a funnel shaped channel (1vc) extends from an inlet at an upstream end of the duck bill valve to an outlet at a downstream end of the valve.
  • the inlet is open to accommodate a tip of a dispensing tube (50d) of a lubricant dispenser (50); the inlet is usually round shaped.
  • the downstream end referred to as the duckbill, has natural flattened shape, naturally biased so as to close the channel.
  • the flattened end opens to permit the pressurized lubricant to pass.
  • pressure is removed, however, the duckbill end returns to its flattened and closed shape, preventing backflow.
  • a higher closing pressure of the duckbill can be reached by providing external resilient means applying a pressure against two opposite faces of the duckbill.
  • the operator of the present invention can be mounted on a swing door to motorize the opening and closing by the swinging of a panel of a space flanked at least at one side by a static post.
  • the swing door comprises the following elements.
  • the operator comprises a motor (1m), a geared transmission coupled to the motor and comprising a geared transmission between the motor and a worm screw (1s) for driving a rotation of the worm screw, and a housing (1c) covering at least the geared transmission and motor.
  • the gist of the present swing door is that the housing of the operator is provided with a one-way valve which is naturally closed and can be opened by coupling a dispensing tube (50d), thus bringing said dispensing tube in fluid communication with the gears of the geared transmission.
  • the one-way valve can be opened because the dispensing tube is inserted into the channel (1vc) of the one-way valve, forcing it open.
  • the dispensing tube is coupled to an inlet of the channel, and the channel is forced open by the injection pressure of the lubricant.
  • the one-way valve is preferably located very close to at least one gear of the geared transmission, preferably vertically above it when the operator is mounted on a swing door in order to profit of gravity for a homogenous distribution of the lubricant in the geared transmission.
  • the operator preferably comprises all the components (a) to (d) described above.
  • the operator hinge defines an operator rotation axis, Zo, distinct from and parallel to the door rotation axis, Zd, (Zo ⁇ Zd and Zo
  • an operator is mounted onto a swing door by means of a post fixing bracket (121) and a panel fixing bracket (131) fixed to a post flanking the space to be closed and to the panel, respectively.
  • the operator is most efficiently mounted with the longitudinal axis, Xs, of the worm screw (1ws) substantially normal to the door rotation axis, Zd.
  • the panels of swing doors generally open and close the aperture by swinging about a door rotation axis, Zd, which is vertical.
  • an operator is preferably mounted with the longitudinal axis, Xs, of the worm screw substantially horizontal.

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  • Power-Operated Mechanisms For Wings (AREA)
EP17205708.5A 2016-12-06 2017-12-06 Stellantrieb für motorisierte schwenktüren Withdrawn EP3333348A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1630288 2016-12-06

Publications (1)

Publication Number Publication Date
EP3333348A1 true EP3333348A1 (de) 2018-06-13

Family

ID=60629482

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17205708.5A Withdrawn EP3333348A1 (de) 2016-12-06 2017-12-06 Stellantrieb für motorisierte schwenktüren

Country Status (1)

Country Link
EP (1) EP3333348A1 (de)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2486242A (en) * 1944-01-17 1949-10-25 Electrol Inc Actuating mechanism for retractable landing gear, doors, flaps, and the like of airplanes
DE102015204073A1 (de) * 2015-03-06 2016-09-08 Schaeffler Technologies AG & Co. KG Linearer Stellantrieb

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2486242A (en) * 1944-01-17 1949-10-25 Electrol Inc Actuating mechanism for retractable landing gear, doors, flaps, and the like of airplanes
DE102015204073A1 (de) * 2015-03-06 2016-09-08 Schaeffler Technologies AG & Co. KG Linearer Stellantrieb

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