EP1673515A1 - Manoeuvre de fenetre a faible encombrement - Google Patents

Manoeuvre de fenetre a faible encombrement

Info

Publication number
EP1673515A1
EP1673515A1 EP04762901A EP04762901A EP1673515A1 EP 1673515 A1 EP1673515 A1 EP 1673515A1 EP 04762901 A EP04762901 A EP 04762901A EP 04762901 A EP04762901 A EP 04762901A EP 1673515 A1 EP1673515 A1 EP 1673515A1
Authority
EP
European Patent Office
Prior art keywords
drive spindle
link
chain
housing
actuator according
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Withdrawn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
EP04762901A
Other languages
German (de)
English (en)
Inventor
Kim Artur Stück ANDERSEN
Troels Johansen
Jens Joerren Soerensen
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.)
VKR Holding AS
Original Assignee
VKR Holding AS
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 VKR Holding AS filed Critical VKR Holding AS
Publication of EP1673515A1 publication Critical patent/EP1673515A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F11/00—Man-operated mechanisms for operating wings, including those which also operate the fastening
    • E05F11/02—Man-operated mechanisms for operating wings, including those which also operate the fastening for wings in general, e.g. fanlights
    • E05F11/04—Man-operated mechanisms for operating wings, including those which also operate the fastening for wings in general, e.g. fanlights with cords, chains or cables
    • E05F11/06—Man-operated mechanisms for operating wings, including those which also operate the fastening for wings in general, e.g. fanlights with cords, chains or cables in guide-channels
    • 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
    • E05F15/619—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms using flexible or rigid rack-and-pinion arrangements
    • 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
    • E05Y2201/11—Covers
    • 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
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/644—Flexible elongated pulling elements
    • E05Y2201/656—Chains
    • 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
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/71—Toothed gearing
    • E05Y2201/722—Racks
    • E05Y2201/724—Flexible
    • 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
    • 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
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Type of wing
    • E05Y2900/148—Windows
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
    • F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
    • F16H19/06—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising flexible members, e.g. an endless flexible member
    • F16H19/0636—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising flexible members, e.g. an endless flexible member the flexible member being a non-buckling chain

Definitions

  • the present invention relates to a slim window actuator for mounting inside a window frame to operate the sash of a pivot hung window, in particularly to slim actuators that use a drive spindle and nut mechanism extending inside an elongate housing and a link mechanism for translating a movement of the nut into a transverse movement for actuating the sash towards and away from the frame.
  • the window frames are typically extruded frames that define an elongate rectangular channel. Typically the cross-section of this channel measures about 25 by 25 mm. Ideally, the complete actuator should fit inside this channel.
  • EP 0 708 218 discloses a window actuator arranged in a side member of a frame of a pivot-hung window for the automatic opening and closing of the window.
  • the drive spindle is arranged parallel to the longitudinal direction of the side member and is driven through a gearing by means of an electric motor situated below the spindle.
  • a chain is guided in a separate guide channel arranged along the drive spindle, and a screw nut, which engages the thread of the spindle, extends into the guide channel through a groove in a wall of said channel. In the guide channel, the screw nut is connected to the chain.
  • this actuator is rather bulky and takes up a large part of the cross-sectional area of the frame, whereby the frame is significantly weakened.
  • This actuator would not fit in the above described 25 by 25 mm channel, unless at least one of the side walls of the channel would be removed, thus substantially weakening the window frame. Further, the insulation material that fills the channels inside the window frame is not present for the space required for the window actuator. In particular if the actuator has a large cross-section the interruption of the insulation material can create a cold bridge that undermines effective insulation of the window as a whole .
  • the object of the present invention is to provide a slim window actuator that can be mounted inside a window frame without substantially weakening the window frame.
  • a slim window actuator for being mounted inside a window frame to operate the sash of a pivot hung window
  • the window actuator comprises an elongated housing; a drive spindle extending inside the housing in a longitudinal direction thereof, the drive spindle being rotably suspended from a first bearing and a second bearing, and having an intermediate section situated between the two bearings, at least one of said bearings being configured to provide the drive spindle with an axially positive support reaction directed away from the intermediate section, a link mechanism having a first part being arranged displaceable along the drive spindle and driven by the intermediate section and a second part for operating said sash, said second part being displaceable in a substantially traverse direction away from or towards the housing by rotation of the drive spindle, and a drive motor disposed inside said elongate housing and operably connected to said drive spindle.
  • the element of the window actuator with the largest cross-section determines whether or not the actuator will fit in the channel in the window frame.
  • the motor and eventually a reduction gearing are often critical elements that prevent the actuator from being able to fit inside the channel in the frame, i.e. the cross sectional size of these elements is often the limiting factor.
  • the actuator has to provide a given minimum speed of operation and maximum load capacity. In order to fulfill the requirements with an electromotor that fits into the channel, the mechanical efficiency of the actuator should be as high as possible, so that the smallest possible electromotor can be used.
  • the main load is in one and the same direction (negative load conditions can be caused by wind forces on the sash) .
  • a considerably thinner drive spindle may be employed in order to provide the same driving force for the link mechanism as the driving force being provided in known actuators, whereby a more compact actuator may be achieved.
  • the major load on the drive spindle resulting from the load carried by the link mechanism in this way may result in tensile stress in the spindle instead of compressive stress.
  • a spindle of a certain diameter is able to carry a larger load in the form of a tensile load than in the form of a compressive load. This is because the spindle will deflect at a compressive load that is considerably smaller than the yield load. Any significant deflection of the spindle will damage the actuator.
  • a smaller drive motor may be employed due to the fact that the torque resulting from the friction between the spindle and the thread of the driving dog is reduced as a result of the smaller spindle diameter. Said torque is roughly proportional to the spindle radius, when neither the pitch of the spindle nor the load carrying area of the thread is modified. Consequently, a smaller drive motor than used in known actuators will be able to perform a full opening or closing cycle within the same short time interval that is common for this operation with such known actuators .
  • a spindle of smaller diameter and a smaller drive motor make it possible to achieve a window actuator which is slimmer than known window actuators, and thus fits in a 25 by 25 mm channel whilst having the same performance as conventional window actuators.
  • the spindle is provided with a double thread to minimize frictional losses.
  • the cross-section of the housing does not exceed the boundaries of a 25mm by 25mm rectangle along any part of its length.
  • the drive spindle in an unloaded condition of the link mechanism, is preloaded against each bearing bracket in order to obtain a tensile force in the intermediate section of the drive spindle.
  • the first bearing bracket has a first support face adapted to support an associated first thrust bearing arranged between the first bearing bracket and a first end member fixed on a first end section of the drive spindle
  • the second bearing bracket has a second support face adapted to support an associated second thrust bearing arranged between the second bearing bracket and a second end member fixed on a second end section of the drive spindle, said support faces being directed away from the intermediate section of the drive spindle .
  • An elastic 0-ring may be arranged around the drive spindle between at least one of the bearing brackets and its corresponding end member, and the O-ring may be compressed in the unloaded condition of the link mechanism. In this way, an appropriate pretensioning of the drive spindle may be achieved.
  • the first end section of the drive spindle is connected with an output shaft of a drive gearing by means of a rigid coupling, said rigid coupling serving as the first end member supported by the first thrust bearing, and the second end section of the drive spindle is provided with a screw nut in locking engagement with said second end section and serving as the second end member supported by the second thrust bearing.
  • a separate first end member is thereby avoided, and the pretensioning of the drive spindle may be adjusted by means of the second end member in the form of the screw nut .
  • a first radial bearing is arranged on the output shaft of the drive gearing and supported by the first bearing bracket. Thereby one radial bearing may be shared between the output shaft of the drive gearing and the drive spindle.
  • a second radial bearing is arranged in the second bearing bracket and is provided with a collar inserted between the second support face of said second bearing bracket and the second thrust bearing.
  • a standard bearing may be employed, whereby the bearing is easily kept in place without having to adapt the bearing bracket.
  • a bracket flange on the first bearing bracket is rigidly connected to a motor flange of a drive motor by means of elongated spacer elements, and the drive gearing is arranged between the bracket flange and the motor flange. A separate gearbox is thereby not necessary.
  • the link mechanism is driven by the drive spindle by means of a driving dog in threaded engagement with the intermediate section of the drive spindle and in driving connection with the link mechanism.
  • the driving dog is guided slidably in the longitudinal direction of the housing, so that rotation of the driving dog in relation to the housing is substantially impeded.
  • a bending moment of the drive spindle resulting from the load on the link mechanism may be considerably reduced. Consequently, a spindle with a further reduced diameter may be employed.
  • the driving dog is composed of a first link in threaded engagement with the intermediate section of the drive spindle and a second link in driving connection with the link mechanism, the first and second links are mutually articulated, and the second link is guided longitudinally in the housing.
  • the articulated connection between the first and second links of the driving dog may further reduce a possible bending moment of the drive spindle, because it may take up tolerances between the direction of the guidance of the second link and the central axis of the drive spindle. This is particularly advantageous, if an extruded profile is employed as the housing of the actuator, because the inner dimensions of such a profile lies within a certain extent of tolerances. Consequently, the direction of the guidance of the second link cannot be controlled exactly.
  • the second link is pivotally connected to the first link about a pivot axis extending substantially through and substantially perpendicular to a central axis of the drive spindle, and the link mechanism is connected to the second link at a distance from the pivot axis.
  • the link mechanism may be arranged extending along the drive spindle substantially without producing a bending moment in the drive spindle.
  • the link mechanism is connected pivotally to the second link about an axis that is perpendicular to the pivot axis between the first and second links. Thereby, the drive spindle may be protected against substantially any bending moment resulting from the link mechanism load and/or irregularities in the guidance of the second link.
  • the link mechanism is a chain composed of links being pivotally connected by means of link pins, each link pin having a central axis, a part of the chain connected to the driving dog extends with its link pins orientated with their central axis extending in a direction substantially through and substantially perpendicular to the central axis of the drive spindle.
  • each link pin of the chain is orientated substantially perpendicular to the pivot axis of the driving dog.
  • a pivotal connection between the chain and the second link of the driving dog may be omitted or such a connection may be executed as the end link pin of the chain.
  • the part of the chain connected to the driving dog is guided in the housing by means of a longitudinal chain guide, the second link of the driving dog is guided on the chain guide, and said chain guide has a longitudinal flange adapted to abut the link pins of the chain.
  • one guide element may serve both the chain and the second link of the driving dog.
  • the first link of the driving dog has the form of at least part of a cylinder penetrated transversely by the drive spindle
  • the second link of the driving dog has the form of a block with a first at least partly cylindrical opening matching the cylindrical form of the first link, in which first opening the first link of the driving dog is inserted
  • the second link has a second opening penetrated by the drive spindle, said second opening having a cross-section large enough for the second link to perform a limited rotation about the pivot axis of the driving dog without touching the drive spindle.
  • a chain exit guide is extendable from the housing adjacent to a chain exit aperture, through which the chain extends.
  • the chain part extending outside the housing may be guided in a direction different from the direction of the chain part extending inside the housing, without the need for a long guide section in said different direction, inside the housing. Consequently, the housing may be designed even more compact, especially in the case that the chain part outside the housing must extend substantially in a transversal direction of the elongated housing.
  • the chain exit guide is slidable in a guide channel arranged transversely in the housing and spring-loaded in the direction out of the housing.
  • the chain exit guide may then be pushed out of the housing automatically upon operation of the actuator. If for instance a window sash is moved away from the chain exit aperture, the chain exit guide will be released.
  • the pivotal movement between the chain links is limited so that, from a position in which a part of the chain extends rectilinearly, said part of the chain may be bended in one direction only, and the chain exit guide is in its extended position located adjacent the chain, at the side of the chain opposite to the bending direction of the chain.
  • the free end of the chain is connected to an object to be moved upon operation of the actuator, for instance a window sash, the chain part between the actuator and said object may then be restricted to extend rectilinearly, whereby the position of said object may be fixed, when the actuator is not operated.
  • the link mechanism comprises a first arm having a first end connected pivotally to the driving dog and a second end adapted to be connected pivotally to an element to be actuated by the actuator, said first arm extending through an elongated aperture in the housing.
  • the link mechanism comprises a second arm having a first end journalled pivotally in the housing and a second end connected pivotally to a central section of the first arm.
  • the link mechanism comprises a Bowden cable .
  • the housing is constituted by a tubular profile.
  • Fig. la, lb and lc show a cross-section of a window sash and frame incorporating an actuator according to the invention, at different stages of an opening sequence
  • Fig. 2 is an exploded view of a slim window actuator according to the invention
  • Fig. 3 is a perspective view of the window actuator according to Fig. 2, whereby the housing has been partly cut away,
  • Fig. 4 shows a detail of Fig. 3, indicated IV, on a larger scale
  • Fig. 5 shows a detail of Fig. 3, indicated V, on a larger scale
  • Fig. 6 shows a bottom view of the actuator according to
  • Fig. 7 shows a detail of Fig. 6, indicated VII, on a larger scale
  • Fig. 8 shows a detail of Fig. 6, indicated VIII, on a larger scale
  • Fig. 9 is a perspective view of a part of the window actuator according to Fig. 3, whereby the housing has been partly cut away
  • Fig. 10 is a bottom view of an embodiment of the chain exit guide
  • Fig. 11 is a cross-section of the chain exit guide in Fig. 10 along the line XI-XI,
  • Fig. 12 and 13 show a top view of a part of another embodiment of the window actuator according to the invention, whereby the chain exit guide is in its retracted and its extended position, respectively
  • Fig. 14 and 15 are perspective views of a part of the window actuator according to Figs. 12 and 13, whereby the chain exit guide is in its retracted and its extended position, respectively
  • Fig. 16 is a sectional view of a detail of yet another embodiment of the window actuator according to the invention, whereby the housing has been partly cut away
  • Fig. 17 is a perspective view of the window actuator according to Fig. 16, whereby the housing has been partly cut away,
  • Figs. 18 and 19 are schematic illustrations in the form of sectional views of a further embodiment of the window actuatpr according to the invention, at different stages of an opening sequence, and
  • Fig. 20 is a schematic illustration in the form of a top view of the housing of the embodiment shown in Figs. 18 and 19.
  • Fig. 1 shows a cross-section of an upper part of a bottom-hung window, in which a window actuator 1 is incorporated in a top member 2 of a stationary window frame 3 supporting a bottom-hung window sash 4 carrying a window pane 5.
  • the window frame 3 and the window sash 4 are composed of extruded profiles.
  • the window actuator 1 is arranged longitudinally in a cavity in the extruded profile forming the top member 2 of the window frame 3.
  • Fig. la, Fig. lb and Fig. lc show the window in a closed, a partly open and an open position, respectively.
  • the window is opened by means of a link mechanism in the form of a chain 6 being displaced out of the window actuator 1 and having a free end 7 connected to a flange part 8 of the window sash 4 by means of a bracket 9.
  • the actuator 1 has an elongated housing 10 made of a tubular, extruded profile having a cross-section of substantially quadratic form.
  • the window actuator 1 is in Fig. 3 shown with its housing 10 partly cut away along a line 11.
  • a drive spindle 12 is arranged in a first bearing bracket 13 and a second bearing bracket 14 with a threaded intermediate section 15 of the drive spindle 12 situated between the bearing brackets 13, 14.
  • a first end section 16 of the drive spindle 12 is located in a downward open channel 17 of the first bearing bracket 13; see also Fig. 6 that shows a bottom view of the actuator 1, whereby the housing has been partly cut away. Further, Fig. 8 shows a part of Fig. 6 on a larger scale.
  • the first bearing bracket 13 has a first support face 18 being directed away from the intermediate section 15 of the drive spindle 12.
  • a first thrust bearing 20 is supported by the first support face 18.
  • the first thrust bearing 20 supports a rigid coupling 22, a first end 23 of which is fixed on the first end section 16 of the drive spindle 12.
  • a second end 24 of the rigid coupling 22 is fixed on an output shaft 25 of a drive gearing 26 by means of a locking pin 27.
  • the output shaft 25 is supported radially by means of a first radial bearing 28 supported in a hole 29 arranged in a bracket flange 30 of the first bearing bracket 13; see the exploded view of Fig. 2 and Fig. 5.
  • a drive motor 31 has a motor flange 32 which by means of elongated spacer elements 33 is connected rigidly to the bracket flange 30 of the first bearing bracket 13. In the shown configuration, three spacer elements 33 are evenly distributed around the drive gearing 26, which is composed of several gear wheels engaging each other and arranged between the motor flange 32 and the bracket flange 30 of the first bearing bracket 13.
  • a first end plug 34 of a first end of the tubular housing 10 is provided with a power cable 35 for the power supply of the drive motor 31.
  • a similar second end plug 36 is arranged in a second end of the housing 10.
  • a second end section 37 of the drive spindle 12 extends through the second bearing bracket 14 and is provided with a second thrust bearing 38 supported by a second support face 39 of the second bearing bracket 14, said second support face 39 being directed away from the intermediate section 15 of the drive spindle 12.
  • a second radial bearing 40 having a first cylindrical part 41 located in a through hole 42 of the second bearing bracket 14 and a second part in the form of a collar 43 located between the second support face 39 and the second thrust bearing 38.
  • the second end section 37 of the drive spindle 12 is provided with a screw nut 44 in locking engagement with said second end 37 and supported by the second thrust bearing 38 by means of an intermediate O-ring 45, which in the assembled state of the actuator 1 shown in Fig. 3 is slightly compressed and therefore only visible on the exploded view of Fig. 2.
  • the screw nut 44 may be in locking engagement with said second end 37 of the drive spindle 12 by means of a not shown locking nut tightened against the screw nut 44.
  • the O-rings 21, 45 may be arranged at the opposite side of their corresponding thrust bearings 20, 38, respectively, than at the side where they are shown in the figures, and they may also be omitted, if appropriate .
  • the first thrust bearing 20, the first radial bearing 28, the second thrust bearing 38 and the second radial bearing 40 may adequately be ball bearings, roller bearings or any appropriate bearings, such as sliding bearings, depending on the forces involved, operating conditions and so forth. Furthermore, the exact arrangement of the thrust bearings in relation to the radial bearings may also be varied widely, as it will be understood by the persons skilled in the art, without departing from the scope of the invention. Especially, the first radial bearing 28 may be placed on the first end section 16 of the drive spindle 12, and said first end section 16 may be connected to the output shaft 25 of the drive gearing 26 by means of a flexible coupling of any suitable type.
  • a chain 6 is guided longitudinally in the housing 10 along a chain guide 47 made of nylon.
  • the chain 6 is composed of links 48 being pivotally interconnected by means of link pins 49, the intermediate section of which is accessible from the left side of the chain 6 as shown in Fig. 3, so that the link pins 49 may slide on a longitudinal flange 50 of the chain guide 47.
  • the chain 6 is guided by means of an arc- shaped recess 51 arranged in the first bearing bracket 13, so that a part of the chain may extend transversely out of the housing 10, through a chain exit aperture 52 in the wall of the housing 10.
  • the arc-shaped recess 51 is lined by means of a nylon lining 72; see Fig. 2.
  • an end link pin 53 of the chain 6 connects the chain to a block-shaped second link 54 of a driving dog 55 guided slidably in the longitudinal direction of the housing 10.
  • a slot 56 of the second link 54 of the driving dog 55 takes up the longitudinal flange 50 of the chain guide 47 without contacting the longitudinal flange 50, whereby the second link 54 may slide on the chain guide 47 on both sides of the longitudinal flange 50.
  • a top face and a bottom face of the second link 54 may slide on the inside of a top wall and a bottom wall, respectively, of the housing 10.
  • a first link 57 of the driving dog 55 has the form of part of a cylinder and is inserted in an opening 58 having a partly cylindrical form matching the form of the first link 57 of the driving dog 55. Perpendicular to the central axis of the cylindrical form of the first link 57 of the driving dog 55 is formed a threaded hole 59 in said first link, through which hole 59 the intermediate section 15 of the drive spindle is screwed. On either side of said first link 57, the drive spindle 12 extends through a longitudinal opening 60 of the second link 54 of the driving dog 55.
  • Said longitudinal opening 60 in said second link 54 has a diameter slightly larger than the outer diameter of the drive spindle 12, so that said second link 54 may perform a limited pivotal moment around the central axis of the cylindrical form of said first link 57 of the driving dog 55.
  • the end link pin 53 of the chain 6 extends in a direction perpendicular to and through the central axis of the drive spindle 12 and also perpendicular to the central axis of the cylindrical form of the first link 57 of the driving dog 55.
  • the chain 6 is rigidly connected to the second link 54 of the driving dog 55, and said second link 54 is connected to the first link 57 of the driving dog 55 by means of a ball-joint, whereby is obtained substantially the same flexibility in the connection between the chain 6 and the drive spindle 12, as is obtained in the above described embodiment.
  • Fig. 2 shows a part of the chain 6 only, and Figs. 3 and 6 do not show the window actuator 1 in its full length, which is indicated by means of zigzag lines breaking through the window actuator 1.
  • a chain exit guide 61 is arranged extendable from the housing 10 next to the chain exit aperture 52.
  • the chain exit guide 61 is slidable in a guide channel 62 arranged in the first bearing bracket 13 and extending transversely of the longitudinal direction of the housing 10.
  • the chain exit guide 61 has a T-shaped flange 63 guided in a T-shaped recess 64 formed in the first bearing bracket 13 along the guide channel 62.
  • the latter is provided with a supplementary flange 73; see Figs. 10 and 11.
  • the supplementary flange 73 slides in a matching groove 74 along the recess 64 in the first bearing bracket 13; see Figs. 2 and 3.
  • the chain exit guide 61 is spring- loaded to its extended position shown in Fig. 9 by means of a pressure spring 65.
  • the left side of the chain 6, as shown in Fig. 9, is closed by a back 46, 66 of each chain link 48, which has a U-shaped cross-section, so that these backs 46, 66 in the extended rectilinear position of the chain abut each other, whereby the chain 6 may only be bent towards the right side, as indicated by an arrow 67 in Fig. 9.
  • said chain exit guide 61 supports the back 46, 66 of each chain link 48 along a part of the chain with the result that the part of the chain 6 extending from the housing 10 is not able to bend, because the end link 7 of the chain is connected to the window sash 4 by means of the bracket 9, as shown in Fig. 1.
  • the exact position of the window sash 4 may be controlled by rotation of the drive spindle 12 by means of the drive motor 31.
  • each chain link 48 may also be of a more conventional type being composed of two opposed separate link plates, whereby the links 48 nevertheless have mutually engageable means for preventing the bending of the chain towards one side from a position in which the chain 6 extends rectilinearly.
  • Said means may comprise bent down flaps, pins or the like.
  • the link pins 49 may be accessible from both sides of the chain 6, whereby the chain exit guide 61 advantageously may be provided with a not shown flange on which the link pins 49 may slide.
  • each link pin 49 may have an outer bushing, which may roll on said flange of the chain exit guide 61, whereby friction may be reduced.
  • Fig. 12 to 15 show a part of another embodiment of the window actuator 1, in which the slidable chain exit guide has been replaced with a pivotal chain exit guide 68.
  • the chain exit guide 68 is pivotal about a pin 69 from a retracted position; see Fig. 12 and 14, in which the chain exit guide 68 is substantially taken up in the housing 10, to an extended position; see Fig. 13 and 15, in which the chain exit guide 68 extends from the housing 10 next to the chain exit aperture 52.
  • the chain exit guide 68 is urged to its extended position by means of a torsion spring 70 arranged around the pin 69 in a way known per se .
  • the pivotal chain exit guide 68 may be pressed into its position in the housing 10 by means of a member drawn near to the housing 10 by the chain 6, for instance a window sash, which is closed by means of the window actuator 1. It is to be noted that in Figs. 12 and 14 the chain exit guide 68 is shown in its retracted position, although the chain is in its extended position. In normal use, the chain exit guide 68 will be in its retracted position only when the chain 6 is also in its retracted position, whereby the chain exit guide 68 will be hold in its retracted position by means of for instance a window sash drawn next to the housing 10 by means of the chain 6.
  • Figs. 16 and 17 illustrate a further embodiment of the window actuator 1, in which the chain 6 is driven by the drive spindle 12 by means of teeth 71 extending from the link pins 49 of the chain 6 and engaging the thread of the intermediate section 15 of the drive spindle 12.
  • the teeth 71 may also extend from the chain links 48 or both from the link pins 49 and the chain links 48 in combination.
  • Figs. 18 to 20 illustrate a further embodiment of the window actuator 1, in which the link mechanism has the form of a first arm 76 and a second arm 80.
  • the first arm 76 has a first end 79 which is connected pivotally to the second link 54 of the driving dog 55 and a second end 77 to be pivotally connected to the window sash 4, as shown in Fig. 1, or a corresponding component to be moved by the window actuator 1.
  • a first end 81 of the second arm 80 is journalled pivotally in the housing 10, and a second end 82 of the second arm 80 is connected pivotally to a central section of the first arm 76.
  • the second arm 80 may be omitted, if the second end 77 of the first arm 76 is prevented from displacement in a direction parallel to the drive spindle 12 in relation to the window sash 4.
  • the arms 76, 80 extend through an elongated aperture 78 in the housing 10.
  • the link mechanism as shown in the figures comprising the first and second arms 76, 80 may also be replaced by other equivalent combinations of several arms.
  • the link mechanism 6, 76, 80 may be any kind of suitable multi-link connector, chain, flexible cable connector or the like.
  • the window actuator 1 for opening a window as shown in Fig. 1, the following approximate dimensions will be appropriate: A total outer length of the window actuator 1 of 560 millimetres, an outer cross-section of the housing 10 of 25 x 25 millimetres, a total length of the threaded part of the drive spindle 12 of 281 millimetres, a diameter of the thread of the drive spindle 12 of 5 millimetres, a chain having a total length of 282 millimetres, a pitch of 12.7 millimetres, a maximal width of 11.9 millimetres, and a height of the link pins 49 of 9.7 millimetres.
  • the drive spindle 12 may have a double thread, and said thread may have a pitch of 1.6 millimetres.
  • the first link 57 of the driving dog 55 is self-locking on the thread of the drive spindle 12. Otherwise, a brake may be provided in order to hold the position of the chain 6, when the window actuator 1 is not operated.
  • the window actuator 1 may be built with different dimensions within a wide range according to the demands of the task to be solved by the window actuator
  • window actuator 1 Different embodiments of the window actuator 1 according to the present invention are possible without departing from the scope of the claims. In the following, examples of some non-limiting possible variations of the window actuator 1 are given.
  • the drive spindle 12 may be a spindle with trapezoidal screw thread, or a so-called recirculating ball spindle or the like.
  • the housing 10 may be tubular having a square cross- section as shown in the Figs, or for instance a circular cross-section or a cross-section of any suitable shape, whereby the internal components of the window actuator may be shaped accordingly to fit inside the housing. Further, the housing 10 may also have the form of two halves to be assembled around the internal parts of the window actuator or may be in the form of more components to be assembled.
  • the tubular housing or different parts composing the housing may be formed of an extruded profile and may be produced of metal, plastic or any other suitable material.
  • the first link 57 and the second link 54 of the driving dog 55 may both be manufactured from oil-filled loose powder sintered bronze, or one of these parts may be of said material and the other part may be of steel. Said parts may also be hardened. Other suitable materials may also be employed.
  • the drive spindle 12 may be driven by any kind of suitable drive motor, as well as it may be manual driven, for instance by means of a crank handle.
  • the gearing between the drive motor or handle and the drive spindle 12 may be composed of standard toothed gearwheels or it may be a planetary gear or any other kind of suitable gearing.
  • the actuator does not need to be of the chain or link mechanism type, but may just as well be of the espagnolette type in which an bracket driven by the spindle nut is used to engage the espagnolette bar.

Landscapes

  • Power-Operated Mechanisms For Wings (AREA)

Abstract

La présente invention concerne une manoeuvre de fenêtre à faible encombrement (1) se montant dans un canal du dormant de fenêtre (3) pour manoeuvrer le châssis (4) d'une fenêtre à bascule. Généralement, en coupe, ce canal fait 25mm x 25mm. La manoeuvre de fenêtre comprend un logement oblong (10) dans lequel est reçue une allonge. Cette allonge (12), suspendue à deux paliers (20, 38), définit entre eux un segment intermédiaire (15). L'un au moins des paliers (20, 38) est configuré pour conférer à l'allonge (12) une réaction de support axialement positive agissant en éloignement à partir du segment intermédiaire (15). L'invention concerne également un embiellage (6, 76, 80) dont une première partie (75), agencée mobile le long de l'allonge (12), est mue par le segment intermédiaire (15), la deuxième partie (7) agissant sur le châssis (4). Cette deuxième partie (7) est mobile sensiblement transversalement en éloignement ou en rapprochement du logement (10) par rotation de l'allonge (12). Un moteur d'entraînement (31), monté à l'intérieur du logement oblong (10), est fonctionnellement relié à l'allonge (12).
EP04762901A 2003-10-09 2004-10-08 Manoeuvre de fenetre a faible encombrement Withdrawn EP1673515A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA200301488 2003-10-09
PCT/DK2004/000682 WO2005033455A1 (fr) 2003-10-09 2004-10-08 Manoeuvre de fenetre a faible encombrement

Publications (1)

Publication Number Publication Date
EP1673515A1 true EP1673515A1 (fr) 2006-06-28

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ID=34400412

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04762901A Withdrawn EP1673515A1 (fr) 2003-10-09 2004-10-08 Manoeuvre de fenetre a faible encombrement

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EP (1) EP1673515A1 (fr)
CN (1) CN1853027B (fr)
WO (1) WO2005033455A1 (fr)

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DK1813757T3 (da) * 2006-01-25 2012-06-04 Vkr Holding As Skub-træk kædeaktuator til vindue
EP2163717B1 (fr) * 2007-01-12 2015-10-28 HAUTAU GmbH Couvercle terminal pour un boîtier d'un mécanisme de commande et dispositif d'agencement du boîtier sur un vantail
US7905156B2 (en) 2007-02-20 2011-03-15 Teleflex Canada Single chain linear actuator
DE102007020828A1 (de) * 2007-05-02 2008-11-06 Dorma Gmbh + Co. Kg Ritzel
EP2231979B1 (fr) * 2007-12-19 2017-01-25 VKR Holding A/S Dispositif de couplage
US8028510B2 (en) 2008-02-27 2011-10-04 Teleflex Canada Inc. Link for a linear actuator
WO2011072343A1 (fr) * 2009-12-18 2011-06-23 Pacific Holdings (Aust) Pty Ltd Enrouleur de chaîne
DE102010002817C5 (de) * 2010-03-12 2016-06-09 Geze Gmbh Antrieb eines Fensters, einer Klappe oder dergleichen
DE202012101390U1 (de) * 2012-01-19 2013-04-22 Hörmann KG Antriebstechnik Antriebsgehäuse für einen Drehflügeltürantrieb
DE202015100105U1 (de) * 2015-01-13 2016-04-11 Aumüller Aumatic GmbH Kettenschubantrieb
CN107476689A (zh) * 2017-09-11 2017-12-15 魏祖旭 能进行调节的窗户链锁
DE102017220244A1 (de) * 2017-11-14 2019-05-16 Geze Gmbh Modulare Antriebsvorrichtung
CN111350426A (zh) * 2020-04-16 2020-06-30 王洁 一种门阻挡器
AU2022301916A1 (en) * 2021-06-28 2023-12-14 Assa Abloy New Zealand Limited Actuator

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AU516364B2 (en) * 1979-10-15 1981-05-28 Whitco Pty. Ltd. Window winder
DE4407276B4 (de) * 1994-03-04 2005-04-28 Geze Gmbh Ausstellvorrichtung für einen Flügel eines Fensters, Lüftungsklappe, Lichtkuppel, Tür oder dergleichen sowie Antrieb zur Bewegung zweier Bauteile relativ zueinander
DE4437250A1 (de) * 1994-10-18 1996-04-25 Heinrich Schlueter Einrichtung für die Ausführung des Schließ- und Öffnungsvorganges eines Kippfensters
DK135995A (da) * 1995-12-01 1997-06-02 Rasmussen Kann Ind As Operator med mindst to udstillerelementer til åbning og lukning af svingbare vinduer
JP3899617B2 (ja) * 1997-10-20 2007-03-28 Ｓｍｃ株式会社 アクチュエータ
EP1076147B1 (fr) * 1999-08-12 2005-08-24 Aug. Winkhaus GmbH & Co. KG Dispositif déflecteur pour panneau basculant ou oscillo-battant monté pivotant sur un cadre et panneau basculant ou oscillo-battant avec dispositif déflecteur

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Also Published As

Publication number Publication date
WO2005033455A1 (fr) 2005-04-14
CN1853027B (zh) 2010-05-05
CN1853027A (zh) 2006-10-25

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