EP3714123B1 - Hebevorrichtung mit einer schlittensystemachse und dachfenster mit einer solchen hebevorrichtung - Google Patents

Hebevorrichtung mit einer schlittensystemachse und dachfenster mit einer solchen hebevorrichtung Download PDF

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Publication number
EP3714123B1
EP3714123B1 EP18812047.1A EP18812047A EP3714123B1 EP 3714123 B1 EP3714123 B1 EP 3714123B1 EP 18812047 A EP18812047 A EP 18812047A EP 3714123 B1 EP3714123 B1 EP 3714123B1
Authority
EP
European Patent Office
Prior art keywords
axle
sledge
lifting device
roof window
runner
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.)
Active
Application number
EP18812047.1A
Other languages
English (en)
French (fr)
Other versions
EP3714123A1 (de
Inventor
Lasse Vinther Hede
Jesper Ryberg
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
Priority to PL18812047T priority Critical patent/PL3714123T3/pl
Publication of EP3714123A1 publication Critical patent/EP3714123A1/de
Application granted granted Critical
Publication of EP3714123B1 publication Critical patent/EP3714123B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • 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
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/1041—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis
    • E05F1/105—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis with a compression spring
    • E05F1/1058—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis with a compression spring for counterbalancing
    • 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
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/03—Sky-lights; Domes; Ventilating sky-lights
    • E04D13/035—Sky-lights; Domes; Ventilating sky-lights characterised by having movable parts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/03—Sky-lights; Domes; Ventilating sky-lights
    • E04D13/035—Sky-lights; Domes; Ventilating sky-lights characterised by having movable parts
    • E04D13/0351—Sky-lights; Domes; Ventilating sky-lights characterised by having movable parts the parts pivoting about a fixed axis
    • E04D13/0354—Sky-lights; Domes; Ventilating sky-lights characterised by having movable parts the parts pivoting about a fixed axis the parts being flat
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D15/00—Suspension arrangements for wings
    • E05D15/40—Suspension arrangements for wings supported on arms movable in vertical planes
    • E05D15/406—Suspension arrangements for wings supported on arms movable in vertical planes with pivoted arms and sliding guides
    • 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
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/1041—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis
    • E05F1/1066—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis with a traction spring
    • E05F1/1075—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis with a traction spring for counterbalancing
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/03—Sky-lights; Domes; Ventilating sky-lights
    • E04D13/035—Sky-lights; Domes; Ventilating sky-lights characterised by having movable parts
    • E04D13/0357—Sky-lights; Domes; Ventilating sky-lights characterised by having movable parts the parts pivoting about an axis supported on a hinged frame or arms
    • 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
    • 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
    • E05Y2201/47—Springs
    • E05Y2201/474—Compression springs
    • 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
    • E05Y2201/624—Arms
    • 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
    • E05Y2600/50—Mounting methods; Positioning
    • E05Y2600/52—Toolless
    • E05Y2600/522—Axial stacking
    • 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
    • E05Y2600/50—Mounting methods; Positioning
    • E05Y2600/52—Toolless
    • E05Y2600/528—Hooking, e.g. using bayonets; Locking
    • 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
    • E05Y2900/152—Roof windows

Definitions

  • the present invention relates to a lifting device for a roof window, in particular for installation in an inclined roof surface, comprising a lifting arm, a spring assembly with a first coupling member, and a sledge system configured to be slidably connected to one part of the roof window and including a sledge and a second coupling member configured to cooperate with the first coupling member, in which a first end of the lifting arm is rotatably connected with the sledge system and a second end is configured to be connected to another part of the roof window.
  • the invention furthermore relates to a roof window incorporating such a lifting device.
  • the biased slide shoe of such lifting devices is mounted on and moves in parallel with or along either the side frame member or the side sash element.
  • the slide shoe typically slides in a guidance mounted on the respective sash or frame member.
  • the spring arrangement biasing the slide shoe is typically located in parallel with the respective sash or frame member.
  • the slide shoe slides in the guidance, urging a lifting arm connecting the slide shoe and the intermediate frame, or sash member, to and from the parallel position.
  • the rotation of the lifting arm about an axis in the slide shoe requires means for rotatably connecting these two parts.
  • Lifting devices for roof windows making use of slide shoes are known and may be found for example in applicant's EP2406448 B1 , wherein a lifting device comprising a biased slide shoe adapted to be slidable with respect to a member of an openable structure, a lifting arm having two ends, one end adapted to be pivotally connected with a member of the structure and the other end associated with said slide shoe, is described.
  • a sliding device com-prising a slide member having a slide shoe being adapted to engage a substantially U-shaped rail comprising a bottom wall, a side wall and a front wall is disclosed.
  • slide shoes described therein are adapted to be connected to a further member, like a sash or a lifting arm, by means of a single eye. While serving the purpose of providing an axis around which a further member may be suitably rotatably connected to the slide shoe, the resulting connection is weak i.e. does not offer the stability and durability that is required by a lifting device for use in a roof window of the type described in the introduction; window sashes are progressively gaining in weight, as modern sashes include additional elements offering a greater range of functionalities, and better insulation properties requiring greater amount of materials being included in the construction of frames, panes and sashes.
  • WO 89/10460 A1 and WO 95/16097 A1 also disclose a lifting device for a roof window, in particular for installation in an inclined roof surface.
  • the forces generated by the operation of the lifting device during opening and closing of the roof window may be at least better sustained by the fact that the axle is supported at more than one point. Such forces will occur repeatedly with frequent operation of the roof window.
  • the influence of the sledge system on the lifting arm and vice versa may be more efficiently transferred via an axle. Thereby, precision, efficiency and durability may be greatly increased with respect to that of a single rivet or other suitable rotational connection means considered in the prior art.
  • the term "fixedly" within the context of the present application should be interpreted in such manner that the lifting arm is connected to the axle and thus in turn to the sledge system at all time during operation, and may thus not inadvertently be released from the engagement.
  • the fixed connection is provided by positive engagement between the first end of the lifting arm and the axle, preferably by forming the first end as a closed portion. This provides for a mechanically simple, yet reliable connection.
  • the axle is mounted in the sledge system.
  • the inventive lifting device comprising a sledge that houses an axle, a better stability and increased sturdiness of the overall sledge system is enabled, and thereby a smoother operation of the sledge system may be obtained.
  • the axle comprises an at least partly essentially circular outer circumference and two end faces.
  • an axle with a partly non-circular section is considered, particularly on the ends of the axle, with a width at least sufficient to receive the width of the lifting arm being circular.
  • Such an embodiment offers the advantage of inserting the axle ends in reciprocal non-circular holes in the sledge wall parts, which reduces the chance of unintended rotation of the axle in the sledge wall parts occurring.
  • the axle is stationary in the sledge wall parts, and the lifting arm is free to rotate around the axle.
  • the stationary nature of the axle in the sledge wall parts ensures greater overall sledge system stability. Furthermore, the lateral position of the axle in the sledge wall parts is more readily ensured if said axle is stationary in said wall parts.
  • a further embodiment where the axle is stationary in the lifting arm and rotates in the sledge wall parts is also considered.
  • the axle is adapted to further contact at least one cut-out in the runner wall portions.
  • the cut out facilitates direct insertion of the axle in the sledge system during assembly.
  • the cut out edge may extend circumferentially along the edge of the axle end face, further providing support and stabilization means to the axle. By stabilization it is meant that the cut-out edge will contribute to maintaining the axle in place by reducing the possibility for the axle being displaced laterally within the sledge wall parts.
  • the axle is adapted to further contact at least one bowl portion in the sledge or the runner.
  • the axle being adapted to contact the bowl portion, the bowl portion provides further support to the axle and contributes to sustaining forces generated during operation of the lifting device and that are transferred between sledge system and the lifting arm via the axle.
  • the axle has at least one rifled end.
  • This rifled end is suitable for being inserted into the at least one hole in said at least one sledge wall portion.
  • the axle may more easily be inserted into the hole, thus making assembly easier.
  • a rifled end contributes to the securing of the axle in the sledge system wall portion holes, thus rendering the axle more stationary.
  • rifled it is meant any arrangement present on the axle outer circumference that results in a non-smooth surface.
  • a roof window incorporating such a lifting device is provided.
  • FIG. 1 the general configuration of a roof window which is top-hinged during normal operation and which pivots for cleaning is shown. Such a window is shown and described in further detail in Applicant's above-mentioned European patent No. 0 733 146 B1 .
  • a lifting device 10 is indicated, which, referring now also to Fig. 2 to 9 , forms part of a first embodiment of the roof window according to the present invention.
  • the roof window comprises a primary frame in the form of a stationary frame 1 configured for installation in an inclined roof surface.
  • At least one secondary frame is connected to the stationary frame 1, in the embodiment shown a first secondary frame in the form of a sash 2 carrying a pane 4, and a second secondary frame in the form of an intermediate frame 3.
  • the intermediate frame 3 is fastened to the stationary frame at a top mounting fitting 5, and the sash 2 is hinged at the top of the roof window, via the intermediate frame 3 to the stationary frame 1, to render the roof window top-hung during normal operation.
  • the sash 2 is also pivotally connected to the intermediate frame 3 in order to be able to rotate the sash 2 to provide access to the outside of the pane 4, for instance for cleaning purposes.
  • the intermediate frame 3 is provided with a frame hinge part 6 of pivot hinge fitting.
  • a lifting device 10 is composed of a spring arrangement 20 and a sledge system 30 which cooperate to assist in the opening of the window, that is, bringing the secondary frame or frames to an angled position relative to the primary frame.
  • the user operates the operating device of the window in the form of a handle 7 at the bottom member of the sash 2.
  • the bias of the spring arrangement 20 of the lifting device 10 acts on a lifting arm 14 inserted between the stationary frame 1 and the intermediate frame 3.
  • the lifting arm 14 exerts a moment on the intermediate frame 3 and hence to the sash relative to an axis through a top hinge pin 11.
  • Closing the window from the open position entails the opposite movements of the sash 2 and relevant parts of the lifting device 10.
  • a similar lifting device may be provided at each side of the roof window.
  • the roof window is provided with a ventilation device 8 acting to allow passage of air also in the closed position of the window.
  • the lifting arm 14 has a first end 12 rotatably connected with a sledge system 30, which in turn is slidably connected with the primary frame 1 in a sledge guidance 16, and a second end 13 rotatably connected with the at least one secondary frame 3, the lifting device 10 furthermore including a spring assembly 20 configured to be coupled to the sledge system 30.
  • the spring assembly 20 is in turn configured to be connected to the first end 12 of the lifting arm 14 by means of a coupling mechanism, such that the spring assembly 20 is able to assume an uncoupled condition and a coupled condition relative to the sledge system 30.
  • Figs 5 and 6 show the general components of the spring assembly 20 of a roof window. Further details and advantages of the particular spring assembly 20 are the subject of Applicant's co-pending patent application filed on the same day as the present application, and is shown for information purposes only in Figs 21 to 24 .
  • the present invention is however applicable to any kind of spring assembly.
  • the general components of the spring assembly are: a tension rod 22 accommodating a buffer spring system 28 and a main spring system 29.
  • the buffer spring system 28 acts as an auxiliary system to a main spring system 29.
  • an adjustment means is provided in the form of a movable adjustment plate 26 which is placed in one of several recesses 27a in a spring casing 27 accommodating the buffer spring system 28.
  • the coupling mechanism comprises a first coupling member 21 associated with the spring assembly 20 as is shown most clearly in Fig. 6 .
  • the first coupling member 21 is adapted to cooperate with a second coupling member associated with the sledge system 30.
  • the second coupling member comprises a sledge 31 forming part of the sledge system 30, and the sledge 31 includes receiving means configured to cooperate with the first coupling member 21 in the coupled condition.
  • the first coupling member includes a hook element 21 to cooperate with the second coupling member including its receiving means formed in the sledge system 30 a sledge 31 of the sledge system 30 is comprised in a second coupling member of the coupling mechanism.
  • the hook element 21 is configured to assume at least a non-engagement position and an engagement position
  • the coupling mechanism furthermore comprises a coupling plate 25 arranged to assume at least a first position corresponding to the coupled condition and a second position corresponding to the uncoupled condition, the coupling plate 25 allowing the hook element 21 to assume said non-engagement position. Operation of the presently preferred embodiments will be described in further detail in connection with Figs 12a to 12h .
  • the receiving means of the second coupling member include at least one receiving recess 314 in the sledge 31 of the sledge system 30.
  • the second coupling member could also take other shapes.
  • One conceivable, alternative solution would be to utilise the axle 40 as receiving means. This alternative solution is shown as the fourth embodiment shown in Fig. 20 .
  • Fig.10 shows the axle of the invention mounted in the sledge system while connecting both the lifting arm 14 and the sledge system 30.
  • the axle 40 comprises an at least partly essentially circular outer circumference, and two end faces.
  • the axle has a circular outer circumference, thus being arranged to rotatably accommodate the lifting arm end 12 while being inserted into holes with circular circumference in the sledge 31 wall parts.
  • the circular outer circumference enables rotatable attachment of the lifting arm.
  • the portion of the axle presenting a circular outer circumference should be at least wide enough to accommodate the lifting arm end 12.
  • the ends of the axle need in any case be arranged so as to be easily inserted into said holes in the sledge 30 wall parts, which shall be arranged to reciprocally accommodate said axle ends.
  • axle ends have a circular outer circumference, as do the holes in the sledge 30 wall parts, but in embodiments that are not part of the invention these may have any other circumference shape, such as triangle, square, pentagonal etc., or an irregular shape. In any case, circumference shapes on axle and sledge wall parts should correspond to each other.
  • axle 40 in the sledge 31 or sledge system 30 may be carried out in any suitable manner as long as it fulfils the requirements due to the relatively large forces involved.
  • the axle 40 is arranged so that a clearance is present between at least one end face of the axle 40 and the guidance 16.
  • the clearance is achieved by the axle being shorter than the width of the runner 32, thus generating a clearance between the axle 40 and parts that may come into contact with the runner 32.
  • the space generated is shared equally between the two axle end faces, thus generating clearance on both end of the axle 40.
  • the axle 40 does not come into direct contact with the stationary frame 1 or with the guidance 16, if present.
  • the runner 32 houses the sledge 31 which accommodates the axle 40 through the sledge wall portion holes. Together, the runner and the sledge form the sledge system, which is connected to the spring assembly via a coupling mechanism as shown in Fig.12d .
  • the bias of the spring assembly 20 of the lifting device 10 acts on a lifting arm 14 inserted between the stationary frame 1 and the intermediate frame 3 through the transfer of moment between the spring or springs in the spring assembly, and the sledge 31, via the coupling mechanism, which urges the sledge system to slide, and transfer the moment to the lifting arm via the axle, as shown in Fig.12c .
  • the axle of the invention is arranged to sustain and effectively transfer these relatively large forces.
  • the axle is arranged to contact, if appropriate, a bowl portion in the sledge 31 or the runner 32, as shown in Fig.17 .
  • the bowl portion is arranged to receive the axle and thereby partially transfer the strain exerted by the lifting arm to the sledge system, thus supporting the axle.
  • the bowl portion is arranged so as to provide sufficient space between the bowl portion and the sledge for the lifting arm end 12 to be accommodated in that space.
  • the axle of the invention is arranged to contact the bowl portion in a manner that is effective for supporting the axle.
  • the axle 40 is arranged so as to contact at least one cut-out 325, 326 in the wall portions 321, 322 of the runner 32.
  • the cut out edge may be arranged to extend circumferentially along the edge of the axle end face, thereby providing further support to the axle and contributing to maintaining the axle in place by reducing the possibility for the axle being displaced laterally within the wall portions of the sledge 31.
  • Fig.15a provides a robust and compact assembly with an axle that is arranged to sustain the forces transferred to the sledge system by the spring assembly and the lifting arm 14.
  • the axle 40 is inserted into the sledge wall parts in such a manner that, in the mounted condition, the axle is made stationary under the forces commonly generated by the operation of the roof window lifting device.
  • Fig.18 shows the axle 40 of the invention with one riffled end 401, which, when inserted into one of sledge 31 wall parts 315, 316, renders the axle stationary in the sledge system 30.
  • the riffled end 401 of the axle 40 will significantly reduce the possibility of the axle rotating and/or moving along the axis of the axle within the sledge wall part holes 315, 316, with normal use of the lifting device 10.
  • the riffled end 401 provides a reduced contact surface between the axle 40 and the sledge wall part hole 315, 316 inner surface, thus enabling the forceful insertion of the axle into said hole, and concomitantly increasing friction between the two said parts.
  • the drawings of Figs10 and 11 show an axle 40 with a riffled end, but any arrangement that provides increased friction between the axle outer surface and the sledge wall part hole is also considered.
  • the sledge 31 is provided with a second opening 318 and an incision 319 to make room for other parts of the lifting device 10.
  • the sledge 31 has been made longer relative to the sledge of the first and second embodiments. This provides the sledge 31 with a larger strength. As a consequence, the incision 319 is made longer.
  • At least one axle end 401, 402 may comprise a location mark 404.
  • a location mark requires a corresponding reference 403 on the sledge wall part or runner in such a manner that during mounting of the axle 40 in the sledge 31, sufficient deformation of the material may be detected.
  • a preferred way of achieving this is by mounting of the axle in the sledge wall part holes in such a way that the respective location mark on the axle end face and the said reference are substantially aligned.
  • the sledge system 30 of the present invention comprises a runner 32, configured to accommodate the sledge 31 and being provided with at least one recess 324 opposite the respective receiving recess 314 of the sledge 31.
  • the runner 32 of the sledge system 30 comprises a runner 32 with at least two faces, a runner inner face and a runner outer face, and a sledge 31, with at least two faces, a sledge inner face and a sledge outer face, the runner 32 comprising at least one wall portion 321, 322, and being configured to accommodate said sledge 31 against its said runner inner face, and wherein said runner 32 is provided with at least one recess 324 opposite a respective receiving recess 314 in said sledge 31.
  • the runner 32 is guided in the sledge guidance 16.
  • the runner 32 could be guided directly in the primary frame 1.
  • the sledge 31 and/or said runner 32 further comprise means for reducing movement between said runner inner face and said sledge outer face.
  • the means for reducing movement between the runner inner face and the sledge outer face comprises a resilient upstanding portion 327 in the runner 32 and a respective opening 317 in said sledge 31 opposite said resilient upstanding portion 327.
  • Further means for reducing movement between the runner inner face and the sledge outer face comprises, in the embodiment shown, at least one flange on the at least one runner wall portion 321, 322 arranged to abut the sledge 31.
  • At least part of one the runner wall portion 321, 322 is thinner than the other wall portion 321, 322, and a first journal section 321a, 322a is thinner than a second journal section 321a, 322a.
  • the sledge 31 further comprises at least one narrowing 313 caused by at least one segment of the wall portion 311, 312 being non-parallel with respect to the other wall portion 311, 312. In this way, a clearance is generated between the sledge wall part and the frame member or guidance.
  • the runner 32 further comprises a bowl portion 323 arranged to receive the axle 40, and the sledge 31 comprises a corresponding opening 317 opposite the bowl portion 323.
  • the bowl portion 323 and the opening 317 are arranged so that the distance between the bowl portion 323 and the sledge first wall portion 311 is greater than the distance between the bowl portion 323 and the sledge second wall portion 312.
  • the runner 32 further comprises at least one cut-out 325, 326 in at least one wall portion 321,322 arranged to receive the axle 40.
  • the runner 32 here further comprises an edge portion 328 as a cut-out on at least one end.
  • the runner 32 is formed of a plastic material such as POM which may also be provided with a coating of for instance Teflon® or other treatment having the function to act as a lubricant to reduce the friction.
  • the narrowing 313 on the runner 32 is made for reasons of space availability.
  • By forming the runner slenderer in one side it is possible to make 322a thicker, and tolerances are accommodated in the side where 322 is - in that way the axle 40 is guided such that the end 402 does not protrude to wear on the side of the guidance.
  • An edge portion 328 is provided as a cut-out in order to allow space for other parts of the assembly.
  • a flange portion 329 scrapes the guidance to the sides of the guidance.
  • the components of the lifting device are subjected to high loads, in particular in large roof windows and in low roof pitches.
  • the required lifting capacity of the lifting device may amount to close to 500 Nm. Loads of these magnitudes not only pose severe demands on the components but also require high performance of the spring assembly.
  • top hinge pin 11 In addition to the aspects covered by the present application, precautions have also been taken to mitigate adverse effects of the load in the top hinge pin 11 and the top bearing fitting 15.
  • the top hinge pin 11 In order for the top hinge pin 11 to be safely lodged in the top bearing fitting 15 at all times, the top hinge pin 11 has been formed with a head and is furthermore secured against rotation.
  • the top bearing fitting 15 In order to transfer the load on the top hinge pin 11 exerted by the sash via the intermediate frame safely to the top bearing fitting 15, the top bearing fitting 15 is provided with protrusions (not shown in detail).

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Window Of Vehicle (AREA)

Claims (9)

  1. Hebevorrichtung (10) für ein Dachfenster, insbesondere zur Installation in einer geneigten Dachfläche, umfassend:
    einen Hebearm (14),
    eine Federanordnung (20) mit einem ersten Kopplungsglied und
    ein Schlittensystem (30), das zur verschiebbaren Verbindung mit einem Teil des Dachfensters ausgelegt ist und einen Schlitten (31) und ein zweites Kopplungsglied aufweist, das zum Zusammenwirken mit dem ersten Kopplungsglied ausgelegt ist,
    wobei ein erstes Ende (12) des Hebearms (14) mit dem Schlittensystem (30) drehbar verbunden ist und ein zweites Ende zur Verbindung mit einem anderen Teil des Dachfensters ausgelegt ist,
    wobei
    das erste Ende (12) des Hebearms (14) über eine fest mit dem ersten Ende (12) verbundene Achse (40) mit dem Schlittensystem (30) verbunden ist, und
    die Achse (40) einen zumindest teilweise im Wesentlichen kreisförmigen Außenumfang und zwei Endflächen umfasst, wobei
    die Achse (40) das Schlittensystem (30) durch mindestens ein Aufnahmeloch (315, 316) in mindestens einem Schlittenwandteil (311, 312) des Schlittens (31) berührt, wobei
    das Schlittensystem (30) ferner eine Kufe (32) aufweist, die in dem einen Teil des Dachfensters geführt wird, dadurch gekennzeichnet, dass die Achse (40) ferner mindestens einen Ausschnitt (325, 326) in Wandteilen (321, 322) der Kufe (32) berührt.
  2. Dachfensterhebevorrichtung nach Anspruch 1, wobei die feste Verbindung durch einen formschlüssigen Eingriff zwischen dem ersten Ende (12) des Hebearms (14) und der Achse (40), vorzugsweise durch Ausbilden des ersten Endes (12) als einen geschlossenen Teil, bereitgestellt wird.
  3. Dachfensterhebevorrichtung nach Anspruch 1 oder 2, wobei die Achse (40) in dem Schlittensystem (30) angebracht ist.
  4. Dachfensterhebevorrichtung nach einem der vorhergehenden Ansprüche, wobei die Hebevorrichtung (10) ferner eine Führung (16) umfasst und die Achse (40) so angeordnet ist, dass zwischen mindestens einer Endfläche der Achse (40) und der Führung (16) ein Zwischenraum angeordnet ist.
  5. Dachfensterhebevorrichtung nach einem der vorhergehenden Ansprüche, wobei die Achse (40) in mindestens einem Schalenteil (323) in dem Schlitten (31) oder der Kufe (32) aufgenommen ist, wobei der Schlitten (31) eine entsprechende Öffnung (318) gegenüber dem Schalenteil (323) umfasst.
  6. Dachfensterhebevorrichtung nach einem der vorhergehenden Ansprüche, wobei die Achse (40) mindestens ein geriffeltes Ende zum Einführen in das mindestens eine Loch (315, 316) in dem mindestens einen Schlittenwandteil (311, 312) aufweist.
  7. Dachfensterhebevorrichtung nach einem der vorhergehenden Ansprüche, wobei die Achse (40) mindestens eine Positionsmarkierung (404) umfasst und wobei der Schlitten (31) und/oder die Kufe (32) mindestens eine jeweilige Positionsmarkierung (403) umfasst/umfassen, die sich gegenüber der mindestens einen Positionsmarkierung (404) an der Achse befinden.
  8. Dachfensterhebevorrichtung nach einem der vorhergehenden Ansprüche, wobei die Achse (40) das zweite Kopplungsglied bildet.
  9. Dachfenster, insbesondere zur Installation in einer geneigten Dachfläche, umfassend einen Primärrahmen (1), mindestens einen Sekundärrahmen (2, 3) wie beispielsweise einen Flügelrahmen (2) und/oder einen Zwischenrahmen (3) und mindestens eine Hebevorrichtung (10) nach einem der Ansprüche 1 bis 10, wobei der Hebearm (14) zwischen dem Primärrahmen (1) und dem mindestens einen Sekundärrahmen (2, 3) eingeführt ist, wobei der Hebearm (14) ein erstes Ende (12), das mit dem mit dem Primärrahmen (1) verschiebbar verbundenen Schlittensystem (30) drehbar verbunden ist, und ein zweites Ende (13), das mit dem mindestens einen Sekundärrahmen (3) drehbar verbunden ist, aufweist.
EP18812047.1A 2017-11-24 2018-11-26 Hebevorrichtung mit einer schlittensystemachse und dachfenster mit einer solchen hebevorrichtung Active EP3714123B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL18812047T PL3714123T3 (pl) 2017-11-24 2018-11-26 Urządzenie podnoszące zawierające oś systemu ślizgowego oraz okno dachowe zawierające takie urządzenie podnoszące

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA201770886A DK180500B1 (en) 2017-11-24 2017-11-24 Lifting device including a sledge system axle and a roof window comprising such a lifting device
PCT/DK2018/050309 WO2019101278A1 (en) 2017-11-24 2018-11-26 Lifting device including a sledge system axle and a roof window comprising such a lifting device

Publications (2)

Publication Number Publication Date
EP3714123A1 EP3714123A1 (de) 2020-09-30
EP3714123B1 true EP3714123B1 (de) 2021-11-10

Family

ID=64572051

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18812047.1A Active EP3714123B1 (de) 2017-11-24 2018-11-26 Hebevorrichtung mit einer schlittensystemachse und dachfenster mit einer solchen hebevorrichtung

Country Status (7)

Country Link
EP (1) EP3714123B1 (de)
CN (1) CN111386376B (de)
DK (1) DK180500B1 (de)
ES (1) ES2903169T3 (de)
HU (1) HUE057096T2 (de)
PL (1) PL3714123T3 (de)
WO (1) WO2019101278A1 (de)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK157695C (da) * 1988-04-08 1990-06-25 Rasmussen Kann Ind As Vindue, navnlig til indbygning i en skraa tagflade
DK170718B1 (da) * 1993-12-10 1995-12-18 Rasmussen Kann Ind As Vindue, navnlig til indbygning i en skrå tagflade
DE9406891U1 (de) * 1994-04-26 1994-06-16 Roto Frank Ag Klapp-Schwing-Dachfenster mit Ausstellhilfe
EP1764453A1 (de) * 2005-09-15 2007-03-21 VKR Holding A/S Hebevorrichtung für ein Dachfenster

Also Published As

Publication number Publication date
WO2019101278A1 (en) 2019-05-31
EP3714123A1 (de) 2020-09-30
ES2903169T3 (es) 2022-03-31
DK180500B1 (en) 2021-06-01
DK201770886A1 (en) 2019-06-12
PL3714123T3 (pl) 2022-02-28
CN111386376A (zh) 2020-07-07
CN111386376B (zh) 2021-08-24
HUE057096T2 (hu) 2022-04-28

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