EP2138661B1 - Speed controller for aperture closing elements and method for controlling speed of said elements - Google Patents
Speed controller for aperture closing elements and method for controlling speed of said elements Download PDFInfo
- Publication number
- EP2138661B1 EP2138661B1 EP08159128A EP08159128A EP2138661B1 EP 2138661 B1 EP2138661 B1 EP 2138661B1 EP 08159128 A EP08159128 A EP 08159128A EP 08159128 A EP08159128 A EP 08159128A EP 2138661 B1 EP2138661 B1 EP 2138661B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- movable member
- aperture
- dynamo
- speed controller
- closing element
- 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.)
- Not-in-force
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- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 3
- 238000013016 damping Methods 0.000 description 4
- 238000005381 potential energy Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 2
- 230000005355 Hall effect Effects 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Images
Classifications
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- 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
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- 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
- E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
- E05F1/16—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for sliding wings
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- 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
- 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
- E05F15/632—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings
- E05F15/652—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings operated by screw-and-nut mechanisms
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- 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
- E05F3/221—Mechanical power-locks, e.g. for holding the wing open or for free-moving zones
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- 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
- E05F5/00—Braking devices, e.g. checks; Stops; Buffers
- E05F5/003—Braking devices, e.g. checks; Stops; Buffers for sliding wings
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- 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
- E05F3/227—Additional arrangements for closers, e.g. for holding the wing in opened or other position mounted at the top of wings, e.g. details related to closer housings, covers, end caps or rails therefor
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- 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
- E05Y2201/214—Disengaging means
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- 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
- E05Y2201/23—Actuation thereof
- E05Y2201/232—Actuation thereof by automatically acting means
- E05Y2201/234—Actuation thereof by automatically acting means direction dependent
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- 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
- E05Y2201/23—Actuation thereof
- E05Y2201/232—Actuation thereof by automatically acting means
- E05Y2201/24—Actuation thereof by automatically acting means using lost motion
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- 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
- E05Y2201/426—Function thereof for opening for the initial opening movement
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- 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
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- 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
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- 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
- E05Y2400/302—Electronic control of motors during electric motor braking
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- 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
- E05Y2600/45—Mounting location; Visibility of the elements in or on the fixed frame
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- 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
- E05Y2800/20—Combinations of elements
- E05Y2800/23—Combinations of elements of elements of different categories
- E05Y2800/24—Combinations of elements of elements of different categories of springs and brakes
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- 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
-
- 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
- E05Y2900/20—Application of doors, windows, wings or fittings thereof for furniture, e.g. cabinets
Definitions
- aperture closing members like doors, shutters, panels and the like are automated or controlled in at least one of their opening/closing movements.
- a common example of such kind of automated closing members is represented by sliding doors, used at the entrance of a room or as furniture doors.
- a mechanical door check is disclosed in the European Patent EP 0 363 642 B1 as comprising an input gear moved by a swinging door and provided for transferring such movement to a brake by means of a gear train.
- Brake means are in the form of a shoe brake wherein two friction plates are centrifugally movable within a brake cup for exerting rubbing forces thereby braking the gear train and consequently the door closing movement.
- a further drawback of a check device as disclosed in EP 0 363 642 B1 concerns its large dimensions and noise produced during the brake action exerted by friction plates on brake cup.
- a check device like in a wardrobe for example, a cumbersome arrangement like that disclosed in the above mentioned patent cannot easily be applied,
- noise produced by mechanical friction between mechanical components and the shoe brake in particular cannot be tolerated in a wardrobe that is usually placed in bedrooms.
- a drawback of an eddy current damping device consists in that the braking force depends essentially on the disk speed and on the magnetic field intensity. Practically, the higher is the speed and/or the magnetic field intensity, the stronger is the braking action. Therefore such devices need to have well defined transmission gear ratio in order to transform even a slow linear movement of a sliding member into a quick rotation of the electrically conductive disk. Said transmission gear must be accurately designed and correctly assembled. Furthermore, intense magnetic fields can be obtained with several magnets that are costly and make the device heavy and mechanically complex to be assembled.
- a rotation of worm 11 and cap 21 in a direction opposite to that indicated with arrow A in figure 4 will leave wheel 23 idle because spring windings widen.
- wheel 23 works as driving wheel a movement is transferred to worm 11 only when wheel 23 rotates in the direction opposite to that indicated by arrow A in figure 4 .
- direction A operatively corresponds to a closing movement of the aperture closing element, i.e. indicates the rotation of worm 11 when an aperture closing element is moved for closing such aperture.
- wheel 23 is the driving wheel, a rotation of said wheel 23 in the same direction A leaves the worm 11 idle. This means that only a rotation of wheel 23 in a direction opposite to that indicated by arrow A can be transferred to worm 11. This happens when an opening movement is imparted by motor-dynamo 20 to the aperture closing element, as it will be disclosed here below.
- a constant resistance R can be set between electrical terminals 28, 29 so as to maintain a constant braking action during the whole movement of movable member 5 along worm 11, or, if preferred, terminals 28, 29 can be maintained reciprocally isolated for a first portion of movable member 5 movement and a resistance R can be set between electrical terminals 28, 29 just on the last part of movable member 5 movement so as to brake suddenly the aperture closing member only when it is approaching the complete closed position.
- FIG 5 it is shown a mere example of a possible application of a speed controller as described before.
- a couple of aperture closing elements in the form of sliding doors 31 are mounted on a frame structure in the form of a furniture article 32.
- Each door 31 is provided with a speed controller connected to a main electrical energy power supply by means of wires 33.
- Control means for controlling working operations of the speed controller can be stored in a box 34 placed outside the speed controller. However, said control means can be also placed within compartment 4 of the speed controller casing 1.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Description
- The present invention refers to a speed controller for an aperture closing element, and to a method for controlling speed of said element.
- Nowadays a large variety of aperture closing members like doors, shutters, panels and the like are automated or controlled in at least one of their opening/closing movements. A common example of such kind of automated closing members is represented by sliding doors, used at the entrance of a room or as furniture doors.
- A known technical problem of sliding doors is linked to the first and second fundamental principles of dynamics, i.e. their mass influences greatly the force that a user or an automatic actuator has to apply to such doors to open or close them starting from a door static position. In addition, it is also a problem to efficiently control the speed of a sliding door closing movement, at least in the last part thereof, i.e. when the door is approaching its fully closed position, in order to avoid that such door slams against the frame structure on which it is slidably mounted.
- Automatic sliding doors are driven by complex mechanisms generally comprising an electric motor and a chain for transferring an opening/closing movement to the door. Such arrangements are rather cumbersome and cannot be applied on a frame structure where space is limited, like those characterising a furniture article. Maintenance and a constant electrical power must be ensured to said arrangements for their efficient working. Evidently this can constitute a problem and even an important expense if this type of automatic doors are provided for a domestic use.
- Some technical solutions have been provided in the art for solving problems noted above, and in particular that of controlling speed when a swinging door is to be closed. A mechanical door check is disclosed in the
European Patent EP 0 363 642 B1 as comprising an input gear moved by a swinging door and provided for transferring such movement to a brake by means of a gear train. Brake means are in the form of a shoe brake wherein two friction plates are centrifugally movable within a brake cup for exerting rubbing forces thereby braking the gear train and consequently the door closing movement. - A drawback of the above type of door check consists in that brake cup is progressively worn out by friction plates thereby reducing the efficiency of the door check device, as typically happen with shoe brakes. For restoring full efficiency of such device frequent substitutions of the brake cup and/or friction plates are required which are not only costly but also undesirable because they causes the doors, and the relative environment closed by said doors, to be temporary out of service.
- A further drawback of a check device as disclosed in
EP 0 363 642 B1 - As a partial solution to the above drawbacks it has been proposed to the market braking devices for sliding doors wherein braking action is carried out by an eddy current brake. An embodiment of such devices is disclosed in the International Patent Application
WO 2006/11435 claim 1. A damping device according to said Patent Application comprises a sliding member partly extending outside a casing for engaging and releasing a sliding door and a gear train transforming a linear movement of the sliding member into a rotational movement of a disk with an angular speed determined by an appropriate gear transmission ratio. Said disk is made in an electrically conductive material and rotates facing a plurality of multipolarized permanent magnets. When said disk rotates magnets creates in the disk eddy currents that opposes disk movement thereby determining a braking force without having any part in contact and therefore avoiding wear and tear of brake components. - A drawback of an eddy current damping device consists in that the braking force depends essentially on the disk speed and on the magnetic field intensity. Practically, the higher is the speed and/or the magnetic field intensity, the stronger is the braking action. Therefore such devices need to have well defined transmission gear ratio in order to transform even a slow linear movement of a sliding member into a quick rotation of the electrically conductive disk. Said transmission gear must be accurately designed and correctly assembled. Furthermore, intense magnetic fields can be obtained with several magnets that are costly and make the device heavy and mechanically complex to be assembled.
- The damping device disclosed in
WO 2006/114352 is designed for exerting a braking force when a sliding door is to be closed, for this reason the gear train is provided with a movable wheel that can be moved away from the other wheels of the train thereby transferring movement from the sliding member to the eddy current brake only when such member is moving in one of the two possible directions, i.e. the direction corresponding to the door closing movement. In this view the movement transmission assembly substantially operates as a one-way clutch would work. A spring element is associated to the movable wheel for keeping the latter meshed with neighbouring wheel and contrasting the moving away movement. In particular, said spring element is compressed by an opening movement of the sliding member. - Since said movable wheel is moved away by a rack connected to the sliding member, the eddy current brake is activated in the first part or the rack movement when a user opens the sliding door starting from a position in which the door is completely closed. This because a couple of rack teeth has to mesh the moving wheel before it disengages the neighbouring wheel. Therefore when a user wants to open a sliding door provided with a device according to
WO 2006/114352 , he/she will disadvantageously have not only to overcome the closed door inertia but also the braking force exerted by the brake in the first part of the sliding movement. - In addition said moving wheel can work improperly if the spring member loses its efficiency or breaks as it can happen after a number of working cycles.
- A drawback common to both devices disclosed respectively in
EP 0 363 642 B1WO 2006/114352 consists in that none of them is suitable for helping the user when he/she wants to open the sliding door manually. In fact when a sliding door is in a position fully closing an aperture, a user has to apply a force sufficiently intense to overcome door weight and friction forces in order to move such door from its closed position. Considering that door weight can be relevant specially whether metallic or glass material is used for door structure, it would be advantageous to have at least such first part of the door opening movement assisted, so as to reduce forces that user is requested to apply. A further speed controller for pivotally mounted doors is disclosed inEP-A-0 559 947 . Disadvantageously, such controller is not suitable for use with sliding doors. - The aim of the present invention is therefore to solve the noted problems and thus providing a speed controller, as defined by the features of
claim 1, suitable for damping the last part of a closing movement of an aperture closing element and also suitable for reducing effort requested to a user or to an automatic actuator for imparting an opening movement to said aperture closing element. - A further object of the invention is to provide a versatile speed controller, i.e. a controller whose working performances can be finely adapted to the features characterising the aperture closing element, like its weight, its particular use and the gradient of speed to be imposed to such element.
- Still another object of the invention is to provide a speed controller for an aperture closing element, like a furniture door, that greatly reduces wear and tear of moving parts thereby keeping speed controller performance constantly high even after a consistent number of working cycles.
- A further object of the invention is providing a speed controller having a reduced number of parts and overall dimensions compared to known type controllers, the same controller reducing emitted noise and being extremely reliable.
- Another object of the present invention consists in providing a speed controller for an aperture closing element having a simple and reliable mechanical transmission adapted to efficiently allow the same controller to work as an aperture closing element brake or as an aperture closing element actuator.
- Still another object of the present invention is to provide an improved frame structure, like a furniture article, having at least a door, in particular a sliding door, whose closing and/or opening movement is assisted by a speed controller according to the present invention.
- Another object of the invention is to provide a method for controlling speed of an aperture closing element, like a door both when said element is moved in an opening direction, and when it is moved in a closing direction.
- Advantages, objects, and features of the invention will be set forth in part in the description and drawings which follow and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objects and advantages of the invention may be realised and attained as particularly pointed out in the appended claims.
- The accompanying drawings, which are included to provide a further understanding of the invention, illustrate a possible embodiment of the invention and together with the description serve to explain the principles of the invention.
- In the drawings:
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Figure 1 shows an exploded view of a speed controller for an aperture closing element according to a preferred embodiment of the present invention; -
Figure 2 shows in a perspective view speed controller offigure 1 with a movable member in a first position corresponding to a closed position of an aperture closing element; -
Figure 3 shows in a perspective view speed controller offigure 1 with a movable member in a second position corresponding to an open position of an aperture closing element; -
Figure 4 shows in a sectional view a one-way clutch; -
Figure 5 shows in a perspective view a frame structure provided with a speed controller according to a preferred embodiment of the present invention; - Referring to
figure 1 , a speed controller for an aperture closing element comprises acasing 1 made in twohalves 2 and 3 coupled by screw means 10. Saidhalves 2, 3 defines acompartment 4 housing amovable member 5 which is associable, at least temporarily, to an opening closure element of a frame structure, like a door of a furniture article, by hook means 6 adapted to clasp a pin (not shown in the figures) provided on said opening closure element.Movable member 5 is slidably coupled tocasing 1 through a cam follower 7 and acam 8 provided on ainner base wall 9 of eachcasing half 2, 3. Aworm 11 is rotatably coupled to themovable member 5 through aconnector 12 threadly engaged toworm 11 such that a translational movement of themovable member 5 is transformed in a rotational movement ofworm 11 and vice versa.Connector 12 hasfurther cam followers 13 coupled tocam 8 so as to be pivotally associated tocasing 1 about saidcam followers 13. In this way a rotation of themovable member 5 relatively toworm 11 is allowed aboutcam followers 13. First andsecond end portions worm 11 are associated tocasing 1 throughbushes Elastic means 17 are coaxially arranged aroundworm 11 for pushingmovable member 5. - A one-
way clutch 18 is provided on thefirst end portion 14 ofworm 11 so as to mechanically connectworm 11 with agear train 19.Gear train 19 is provided for transferring a movement from theworm 11 to a motor-dynamo 20 and vice versa. The term "motor-dynamo" is used in the present description for designating a reversible electric machine for converting electrical energy into mechanical energy and vice versa. Moreover, the term covers both AC and DC machines. Motor-dynamo 20 is provided withelectrical terminals dynamo 20 is working as a dynamo, and for receiving a powering current from a power source when the motor-dynamo 20 is working as a motor. - One-way clutch 18, whose working operation will be described here below, is provided for allowing transfer of a first movement from
movable member 5 to motor-dynamo 20 only when saidmember 5 moves alongworm 11 from a position wherein the aperture closing element is at least partly opened (seefigure 3 ) leaving the aperture partly accessible to a position wherein said aperture is closed (seefigure 2 ). One way clutch 18 can also transfer a second movement, opposed to the first movement, from the motor-dynamo 20 to themovable member 5 for moving the latter from a first position shown infigure 2 corresponding to a situation in which said aperture closing element closes said aperture to a second position, shown infigure 3 , wherein the aperture is at least partly accessible. - With reference to
figure 4 , such working operation is obtained by connecting theend portion 14 ofworm 11 to acap 21 through apin 22 and afirst wheel 23 ofgear train 19 to aspring element 24 which is also engaged on thecap 21.Wheel 23 is mounted idly with respect toworm 11, i.e. a clearance is present betweenwheel 23 andworm 11. Awasher 26 is provided on a side ofwheel 23 to avoid direct contact withworm 11. Windings ofspring element 24 can tight whenworm 11 andcap 21 are solidly rotated in a first direction indicated with arrow A infigure 4 , in this way a connection is established betweencap 21 andwheel 23 via saidspring 24 andwheel 23 is driven byworm 11. A rotation ofworm 11 andcap 21 in a direction opposite to that indicated with arrow A infigure 4 will leavewheel 23 idle because spring windings widen. Evidently whenwheel 23 works as driving wheel a movement is transferred toworm 11 only whenwheel 23 rotates in the direction opposite to that indicated by arrow A infigure 4 . Whenworm 11 is the driving means, direction A operatively corresponds to a closing movement of the aperture closing element, i.e. indicates the rotation ofworm 11 when an aperture closing element is moved for closing such aperture. On the contrary, whenwheel 23 is the driving wheel, a rotation of saidwheel 23 in the same direction A leaves theworm 11 idle. This means that only a rotation ofwheel 23 in a direction opposite to that indicated by arrow A can be transferred toworm 11. This happens when an opening movement is imparted by motor-dynamo 20 to the aperture closing element, as it will be disclosed here below. - It will be now described the operation of a speed controller according to the invention with reference to
figures 2 and3 where the upper half 2 ofcasing 1 has been removed. - In
figure 2 speed controller is shown in its rest position corresponding to a situation wherein the opening closure element (not shown infigure 2 ) is closed and the aperture is not accessible. In this rest position a pin provided on said closing element is engaged byhook 6 ofmovable member 5 and the latter is placed substantially parallel toworm 11. Elastic means 17 have a minimal potential energy stored therein. When a user or an automatic actuator moves the closing element in the opening direction for making the aperture accessible,movable member 5, dragged by the aperture closing element, translates alongworm 11 guided bycam followers 13 and 7 sliding oncam 8.Connector 12 translates solidly withmember 5 and rotatesworm 11 in direction indicated by arrow B infigure 2 which is opposite to arrow A shown infigure 4 . Since theworm 11 is now the driving means, the one-way clutch 18 leaves wheel 23 idle, i.e.wheel 23 is not driven byworm 11 and therefore,gear train 19 and motor-dynamo 20 do not receive any movement, and the speed controller is inactive. - If it is desired to reduce forces that a user or an automatic actuator is requested to apply when an opening movement is imparted to an aperture closing element, motor-
dynamo 20 can be powered by any kind of electrical powering means, such as a battery or a main power supply. Depending on the type of powering means used, such means can equivalently be incorporated in thespeed controller compartment 4 or placed outside thecasing 1. In this way a movement is transferred from the motor-dynamo 20, working as an electrical motor, toworm 11 throughgear train 19.Wheel 23 is therefore a driving wheel rotating in the direction B and imparting the worm 11 a rotation via one-way clutch 18. As described above, such rotation ofworm 11, which is opposite to that shown infigure 4 by arrow A, will be transformed byconnector 12 in a translational movement ofmovable member 5. - Sensing means 27 can be provided substantially at the end portions of
cam 8 for sensing position and/or speed ofmovable member 5 so as to start or stop powering motor-dynamo 20, respectively, as soon as an opening movement is imparted to the aperture closing element and therefore tomovable member 5 or as soon as the aperture closing element disengages frommovable member 5, i.e. when the latter is approaching theend portion 30 ofcam 8, compressing almost completely the elastic means 17 (figure 3 ). Sensing means 27 can be of many known types, like a Hall effect sensor, a micro switch and the like. In order to power motor-dynamo 20 on and off in response to signals output by sensing means 27, control means (not shown in the figures) can be provided in signal communication with said sensing means 27. Said control means are suitable to operate powering means to supply a current toelectrical terminals dynamo 20 and also to dissipate current produced onterminals - In
figure 3 it is shown the speed controller offigure 2 after thatmovable member 5 has travelled substantially along the whole longitudinal run ofworm 11 and has compressed almost completely the elastic means 17 causing it to store potential energy.Cam followers 13 slides oncam 8 which comprises a straight portion parallel to longitudinal extension ofworm 11 and anend portion 30 forming an angle with the straight portion.Such end portion 30 is designed so as to causemovable member 5 to rotate about cam follower 7 thereby rotatinghook 6 for disengaging the latter from pin provided on the aperture closing element. - In case an opening translational movement of
movable member 5 is imparted by motor-dynamo 20 working as an electrical motor throughgear train 19, as mentioned above, sensing means 27, placed substantially at theend portion 30 ofcam 8, senses presence ofmovable member 5 and outputs a signal that is used by control means for powering motor-dynamo 20 off. - When the
cam follower 13 has reached theend portion 30 ofcam 8,movable member 5 stays in the rotated position reached at the end ofcam 8 as shown infigure 3 until the aperture closing element is engaged again byhook 6 in the closing movement imparted to said element by a user or an automatic actuator. Evidently, when the aperture closing element is moved for closing such aperture,movable member 5 will travel alongworm 11 in the opposite direction compare to that described above, i.e. it will move from theend portion 30 of cam 8 (figure 3 ) to its rest position shown infigure 2 . During its return movement, i.e. during the closing movement of the aperture closing element,movable member 5 is not only dragged by the aperture closing element but it is also pushed byelastic means 17 that releases its potential energy. Similarly to what has been already described above,movable member 5 causesworm 11 to rotate about its longitudinal axis by means ofconnector 12. This rotation takes place in direction of arrow A shown infigure 4 . Sinceworm 11 is now the driving means, one-way clutch 18transfer worm 11 rotational movement towheel 23 and therefore motor-dynamo 20 is activated bygear train 19. Said motor-dynamo 20 now works as a dynamo, producing a voltage on itselectrical terminals movable member 5, motor-dynamo 20 works as an electromagnetic brake, i.e. as a dynamo brake. In other words, voltage produced onelectrical terminals terminals movable member 5 towards its rest position shown infigure 2 . In this way the braking action can be arranged as desired, considering the weight of the aperture closing element, the tolerable noise produced by the contact of closing element with the frame structure on which the element is mounted or the speed reached by said closing element during its closing movement. For example, a constant resistance R can be set betweenelectrical terminals movable member 5 alongworm 11, or, if preferred,terminals movable member 5 movement and a resistance R can be set betweenelectrical terminals movable member 5 movement so as to brake suddenly the aperture closing member only when it is approaching the complete closed position. - It is also possible to short-
circuiting terminals movable member 5 through signals output by sensingmeans 27. As a further embodiment of the present speed controller, a resistance R of a specific and predetermined value can be permanently set betweenelectrodes - When the aperture closing element has fully closed the aperture, i.e. the
movable member 5 has reached its rest position shown infigure 2 , sensing means 27 outputs a signal to control means so as to interrupt the action of the latter onelectrical terminals dynamo 20. In this way the speed controller will be ready to assist a user or an automatic actuator when start performing the next opening movement of the aperture closing element. - It is now clear as the present speed controller is very versatile because it can be adapted to aperture closing elements different in shape and in weight, and also to closing elements that are mounted in a variety of frame structures, like walls, furniture articles, vehicles and so on. A speed controller according to the invention can also be applied to already existing aperture opening elements.
- In
figure 5 it is shown a mere example of a possible application of a speed controller as described before. A couple of aperture closing elements in the form of slidingdoors 31 are mounted on a frame structure in the form of afurniture article 32. Eachdoor 31 is provided with a speed controller connected to a main electrical energy power supply by means ofwires 33. Control means for controlling working operations of the speed controller can be stored in a box 34 placed outside the speed controller. However, said control means can be also placed withincompartment 4 of thespeed controller casing 1. - In view of the above disclosure, it is evident as a speed controller according to the present invention can be arranged and/or operated so as to work either only as a braking device for reducing speed of an aperture opening element while closing or both as a breaking device and as opening assistant for reducing forces that a user or an automatic actuator has to apply to an aperture closing element for starting an opening movement of the latter. The invention is therefore advantageously suitable for modifying speed of an aperture closing element as desired during its opening and/or only during its closing movement, in particular a deceleration is produced during the closing movement and an acceleration of the aperture closing element is produced by the speed controller when an opening movement is initiated.
- If preferred, said speed controller can also be mounted on an aperture closing element for providing the same effects described above when the closing element is to be closed and/or opened.
Claims (13)
- Speed controller for exerting a braking force when closing a sliding aperture closing element (31) that is slidably movable between a first position wherein said aperture is closed by said closing element (31) and a second position wherein said aperture is at least partly opened, said controller comprising a casing (1) that houses a movable member (5) for engaging and releasing the aperture closing element (31) said movable member (5) being provided with a cam follower (7) slidably coupled to a cam (8) on said casing and further comprising a movement transmission assembly (11, 17, 18, 19, 20) having a one-way clutch (18) allowing an aperture closing movement of the movable member (5) to be transferred to a braking device (20) of the controller and preventing an aperture opening movement of the movable member (5) against elastic means (17) of the controller from being transferred to the braking device (20), the speed controller being characterised in that the braking device (20) is a motor-dynamo (20) capable of being powered for transferring an aperture opening movement to the movable member (5) by means of the one-way clutch (18) and a worm (11) that is operatively associated to the one-way clutch (18) gears (19) said worm (11) being threadly engaged to a connector (12) pivotally coupled to said movable member (5), the connector (12) being provided with a cam follower (13) slidably coupled to said cam (8) formed on said casing (1).
- Speed controller according to claim 1 wherein said elastic means (17) are coaxially arranged around said worm (11), the elastic means (17) being provided for pushing said movable member (5) when the sliding aperture closing element (31) is to be closed.
- Speed controller according to claim 1 or 2 wherein said motor-dynamo (20) comprises short-circuited electrical terminals (28, 29),
- Speed controller according to claim 1 or 2 wherein said motor-dynamo (20) comprises electrical terminals (28, 29) and at least one electrical resistance R>0 placed therebetween,
- Speed controller according to any preceding claim wherein said motor-dynamo (20) comprises electrical terminals (28, 29) electrically connected to control means adapted to adjust electrical resistance R between said electrical terminals (28, 29).
- Speed controller according to any preceding claims comprising sensing means (27) adapted to sense position and/or speed of said movable member (5).
- Speed controller according to claims 5 and 6 wherein said sensing means (27) are in signal communication with said control means so as to drive the motor-dynamo (20) in response to position and/or speed of the movable member (5).
- Speed controller according to any preceding claim further comprising powering means electrically connected to said motor-dynamo (20) for driving said movable member (5) so as to move said aperture closing element (31) from the first to the second position.
- Method for controlling speed of a sliding aperture closing element through a speed controller according to any claim 1 to 8 characterised by comprising the following step: (a) preventing movement transmission from a movable member (5) to a motor-dynamo (20) when the movable member (5) is moved from a first position wherein said aperture is closed to a second position wherein said aperture is at least partly opened and allowing such movement transmission when the movable member (5) is moved in the opposed direction; (b) under conditions of step (a), detecting whether the movable member (5) associated to an aperture closing element (31) is moving towards the second position or towards the first position (c) powering a motor-dynamo (20) to rotate a worm (11) on which the movable member (5) is threadly mounted so as to accelerate the closing element (31) towards said second position if in step (b) a movement of the movable member (5) toward said second position has been detected, or dissipating electric power
generated by a motor-dynamo (20) providing a resistance R≥0 between electrical terminals (28, 29) of said motor-dynamo (20) if in step (b) a movement of the movable member (5) toward said first position has been detected. - Method according to claim 9 wherein step (b) is carried out by sensing means (27) and step (c) is carried out by control means in signal communication with said sensing means (27).
- Method according to claim 10 wherein the resistance R is adjusted by said control means until the movable member (5) is stopped.
- Frame structure comprising at least one sliding aperture closing element (31) and a speed controller according to any claim 1 to 8.
- Frame structure according to claim 12 characterised by being a furniture article (32) wherein said at least one aperture closing element (31) is a door slidably coupled to said frame structure.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08159128A EP2138661B1 (en) | 2008-06-26 | 2008-06-26 | Speed controller for aperture closing elements and method for controlling speed of said elements |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08159128A EP2138661B1 (en) | 2008-06-26 | 2008-06-26 | Speed controller for aperture closing elements and method for controlling speed of said elements |
Publications (2)
Publication Number | Publication Date |
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EP2138661A1 EP2138661A1 (en) | 2009-12-30 |
EP2138661B1 true EP2138661B1 (en) | 2012-10-17 |
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ID=39874129
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP08159128A Not-in-force EP2138661B1 (en) | 2008-06-26 | 2008-06-26 | Speed controller for aperture closing elements and method for controlling speed of said elements |
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EP (1) | EP2138661B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10590691B2 (en) | 2015-04-09 | 2020-03-17 | Multimatic Inc. | Vehicle door system with power drive module |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2373865A2 (en) * | 2008-12-10 | 2011-10-12 | Hettich-Heinze GmbH & Co. KG | Drive apparatus for moving a sliding door by motor and method for actuating the drive apparatus |
WO2011117083A1 (en) * | 2010-03-24 | 2011-09-29 | Assa Abloy Ip Ab | Power efficient sliding door |
DE202010007325U1 (en) * | 2010-05-28 | 2011-10-20 | Hella Kgaa Hueck & Co. | Drive device for a movable furniture part |
EP2428354A1 (en) * | 2010-09-09 | 2012-03-14 | Bramidan A/S | An automatic door for a baler |
GB2544256B (en) * | 2015-08-21 | 2021-03-31 | Kohler Mira Ltd | A closure mechanism for a shower door and a shower door assembly |
CN107550052B (en) * | 2017-09-22 | 2023-05-02 | 广东东泰五金精密制造有限公司 | Furniture is with pressing rebound closing mechanism of subtracting power function |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0270879A (en) | 1988-09-06 | 1990-03-09 | Sankyo Seiki Mfg Co Ltd | Door closer |
US5243735A (en) * | 1992-03-09 | 1993-09-14 | Thomas Industries, Inc. | Regenerative feedback door control device with one-way clutch |
CA2124403C (en) * | 1993-07-19 | 2001-12-18 | Mark A. Beran | Apparatus and method for selective alteration of operating parameters of a door |
AT503045B1 (en) * | 2004-06-18 | 2008-01-15 | Blum Gmbh Julius | DEVICE FOR MOVING A MOVABLE FURNITURE PART |
DE202005006931U1 (en) | 2005-04-28 | 2006-08-31 | Hettich-Heinze Gmbh & Co. Kg | Damping device for movable furniture parts |
DE202006006181U1 (en) * | 2006-04-18 | 2007-08-30 | Paul Hettich Gmbh & Co. Kg | Furniture |
-
2008
- 2008-06-26 EP EP08159128A patent/EP2138661B1/en not_active Not-in-force
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10590691B2 (en) | 2015-04-09 | 2020-03-17 | Multimatic Inc. | Vehicle door system with power drive module |
US10982482B2 (en) | 2015-04-09 | 2021-04-20 | Multimatic Inc. | Vehicle door system with power drive module |
US11060340B2 (en) | 2015-04-09 | 2021-07-13 | Multimatic Inc. | Vehicle door system with power drive module |
Also Published As
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EP2138661A1 (en) | 2009-12-30 |
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