DK172300B1

DK172300B1 - Switching device for interconnecting an electric window actuator and an operating means as well as an electric actuator for use with such a switching device

Info

Publication number: DK172300B1
Application number: DK023296A
Authority: DK
Inventors: Ole Fejer
Original assignee: Rasmussen Kann Ind As
Priority date: 1996-03-01
Filing date: 1996-03-01
Publication date: 1998-03-02
Also published as: DE69705250T2; EP0792991A1; JP3976100B2; ES2159824T3; ATE202402T1; DE69705250D1; DK23296A; PT792991E; EP0792991B1; JPH09328959A

Abstract

The invention relates to a coupling device for connecting an electrical operator device for opening and closing a window and comprising an operating member (2) for a locking mechanism, which coupling device comprises a first coupling element (8) designed for releasable engagement with a second coupling element (9) mounted on said operating member, the coupling device being characteristic in that said coupling elements comprise a pin or tap member (13) substantially transverse to the push element and a recess (15) for receiving said pin or tap member (13). Said pin or tap member and recess are designed and adapted to each other in such a way that the pin and tap member in a position of the pivotal operating member (2) corresponding to activation of the locking mechanism when the window is closed, may be guided in and out of the recess (15), but in a, in relation thereto, swung-out position of the operating member (2) corresponding to release of the locking mechanism, is prevented from passing out through the recess (15) by a spring-loaded member (16). <IMAGE>

Description

DK 172300 B1DK 172300 B1

Opfindelsen angår koblingsindretning til sammenkobling af et elektrisk manøvreorgan for åbning og lukning af et vindue med et på vinduesrammen svingbart monteret betjeningsorgan for en låsemekanisme, hvor 5 manøvreorganet omfatter et med karmkonstruktionen ud for nævnte betjeningsorgan forbundet hus og et derfra i retning mod rammen forløbende skubbeelement, hvis virksomme længde ved aktivering af manøvreorganet kan øges eller mindskes til henholdsvis åbning og lukning 10 af vinduet, hvorved koblingsindretningen omfatter et med skubbeelementets frie ende forbundet første koblingselement udformet til udløseligt indgreb med et på nævnte betjeningsorgan monteret andet koblingselement, hvilke koblingselementer omfatter dels et i forhold til 15 skubbeelementet i det væsentlige tværstillet stifteller tapelement, dels en udsparing til optagelse af nævnte stift- eller tapelement, hvilke elementer er således tilpasset hinanden, at stift- eller tapelementet i en første stilling af det svingbare betje-20 ningsorgan svarende til aktivering af låsemekanismen ved lukket vindue frit kan føres ind i og ud af udsparingen, medens det i en anden, i forhold hertil udsvinget stilling af betjeningsorganet svarende til frigørelse af låsemekanismen fastholdes i udsparingen.BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to coupling means for interconnecting an electrical actuator for opening and closing a window with a locking mechanism pivotally mounted on the window frame, the actuator comprising a housing connected to said frame member and a housing extending therethrough towards said frame member. the effective length of which, upon actuation of the actuator, can be increased or decreased to open and close 10 of the window, respectively, the coupling device comprising a first coupling element connected to the free end of the pushing element designed for releasably engaging a second coupling element mounted on said actuator, which comprises a coupling element partly relative to the pushing element substantially transverse pin or tap element, and partly a recess for receiving said pin or tap element, which elements are so adapted to each other that the pin or tap element in a first position The pivoting control means corresponding to actuation of the locking mechanism at the closed window can be freely inserted into and out of the recess, while in the other position of the operating means corresponding to the release of the locking mechanism is retained in the recess.

25 Vinduer med en om en akse drejelig ramme anvendes i udstrakt grad som ovenlysvinduer. Sådanne vinduer automatiseres i stigende grad ved at åbning og lukning af den drejelige ramme foretages ved hjælp af et elektrisk manøvreorgan og et tilhørende skubbeelement.25 Windows with an axis rotatable frame are extensively used as skylights. Such windows are increasingly automated by opening and closing the swivel frame by means of an electrical actuator and associated pushing member.

30 Fra WO 95/04204 kendes en koblingsindretning af den indledningsvis nævnte art til sammenkobling af et elektrisk manøvreorgan og et betjeningsorgan, som muliggør automatisk eller manuel betjening af et vindue uden at der til det formål kræves tekniske hjælpemidler 35 eller betjening af et særskilt udløserelement. Desuden 2 DK 172300 B1 kan betjeningen ved en eventuel nødsituation nemt omstilles fra automatisk til manuel betjening, både ved lukket og ved åbent vindue.30 WO 95/04204 discloses a coupling device of the kind mentioned above for interconnecting an electrical actuator and an actuator which enables automatic or manual operation of a window without the need for technical aids 35 or operation of a separate trigger element. In addition, in the event of an emergency, the operation can easily be switched from automatic to manual operation, both in closed and open windows.

Denne koblingsindretning omfatter to koblings-5 elementer, hvor det ene koblingselement er udformet som en handel med et hovedparti og det andet som en hundel med en udsparing til optagelse af handelen. Udformningen af han- og hundelen bevirker, at disse skal fremstilles med forholdsvis stor præcision. Desuden kan 10 eventuel slitage på delene medføre nedsat virkeevne, således at effektiviteten af og sikkerheden for fastholdelse af koblingselementerne til hinanden nedsættes.This coupling device comprises two coupling elements, one coupling element being designed as a trade with a main portion and the other as a dog part with a recess for receiving the trade. The design of the male and female parts causes these to be manufactured with relatively high precision. In addition, any wear on the parts may result in decreased efficiency, thus reducing the efficiency and safety of holding the coupling elements to each other.

I en udførelsesform for denne kendte koblingsindretning fastholdes en handel i form af et kuglehoved 15 i en udsparing i hundelen ved hjælp af et fjederpåvirket låseelement, hvis position i forhold til udsparringen kan reguleres ved hjælp af et fjederbelastet trykelement, således at kuglehovedet ved stramning af skubbeelementet under overvindelse af pakningstrykket 20 i den lukkede stilling igen kan passere forbi låseelementet og frigøres fra hundelen.In one embodiment of this known coupling device, a trade in the form of a ball head 15 is maintained in a recess in the dog part by means of a spring-actuated locking element, the position of which relative to the recess can be controlled by means of a spring-loaded pressure element, so that the ball head is tightened by the pushing element. while overcoming the packing pressure 20 in the closed position can again pass the locking member and be released from the dog part.

I forhold hertil tilsigtes det ved opfindelsen at angive en koblingsindretning, hvor koblingselementerne kan udformes med større tolerancer, således at eventuel 25 slitage får tilsvarende mindre betydning, uden den ekstra komplikation som følger af monteringen af det fjederpåvirkede låseelement i denne kendte udførelse.In relation to this, it is an object of the invention to provide a coupling device where the coupling elements can be designed with greater tolerances, so that any wear is correspondingly less important without the additional complication resulting from the mounting of the spring-actuated locking element in this known embodiment.

Med henblik herpå er koblingsindretningen ifølge opfindelsen ejendommelig ved, at nævnte fastholdelse 30 sker ved en ved betjeningsorganets udsvingning forårsaget aktivering af et fjederpåvirket element, som er blokeret i den første stilling og at manøvreorganet er styret således, at stift- eller tapelementet og udsparingen i den første stilling er frigjort fra hinan-3 5 den.To this end, the coupling device according to the invention is characterized in that said retaining 30 is effected by actuation of a spring-actuated element which is blocked in the first position by the actuation of the actuator and that the actuating means is controlled so that the pin or tap element and the recess in it the first position is released from each other.

DK 172300 B1 • 3DK 172300 B1 • 3

Fastholdelsen af koblingselementerne ifølge opfindelsen i en sammenkoblet stilling foretages på en enkel måde, således at vinduet kan betjenes såvel manuelt som automatisk, og at det ved åbent vindue er 5 let at omstille betjeningen fra automatisk til manuelt for eksempel i en nødsituation.The coupling elements according to the invention are held in an interconnected position in a simple manner so that the window can be operated both manually and automatically and that at open window it is easy to switch the operation from automatic to manual, for example in an emergency.

Desuden bevirker brugen af et fjederpåvirket element, som i en udsvinget stilling af betjeningsorganet forhindrer at stift- eller tapelementet passerer 10 ud gennem udsparingen, men er blokeret i den første stilling af betjeningsorganet, at det fjederpåvirkede element automatisk bruges til den blokerede stilling, hvor det åbner for fri passage af stift- eller tapelementet, når betjeningsorganet ved lukkebevægelsen 15 indtager den første stilling.In addition, the use of a spring actuated member which in a pivoted position of the actuator prevents the pin or tab member passing out through the recess, but is blocked in the first position of the actuator, the spring actuated member is automatically used for the blocked position where the allows for free passage of the pin or tap member when the actuator at the closing movement 15 occupies the first position.

Opfindelsen angår tillige et elektrisk manøvreorgan til åbning og lukning af et vindue og til brug sammen med en koblingsindretning ifølge et af de foregående krav, hvilket manøvreorgan omfatter et med 20 vinduets karmkonstruktion forbundet hus og et derfra i retning mod rammen forløbende skubbeelement i drivforbindelse med en i huset anbragt drivmotor med tilhørende motorstyrekreds. For at undgå at manøvreorganets skubbeelement bevæges for langt i åbneretningen i 25 en situation, hvor de to koblingselementer i koblingsindretningen er frigjort fra hinanden, for eksempel ved at vinduet eller klappen allerede er åbnet manuelt, er et sådant manøvreorgan ifølge opfindelsen ejendommeligt ved, at motorstyrekredsen er indrettet til ved sampling 30 af motorstrømmen at påvirke motoren til returnering af skubbeelementet til dets udgangsposition, når skubbeelementet påvirkes til bevægelse i åbneretningen med de to koblingselementer frigjort fra hinanden.The invention also relates to an electric actuator for opening and closing a window and for use with a coupling device according to one of the preceding claims, which actuating means comprises a housing connected to the window frame structure and a pushing element extending therefrom in connection with a frame. The drive motor is located in the house with the corresponding motor control circuit. In order to avoid the pushing element of the actuator moving too far in the opening direction in a situation where the two coupling elements in the coupling device are released from each other, for example by the window or flap already being opened manually, such an actuator according to the invention is peculiar to the fact that the motor control circuit is adapted to act upon sampling 30 of the motor current to actuate the motor for returning the pushing element to its initial position when the pushing element is actuated for movement in the open direction with the two switching elements released from each other.

Yderligere fordelagtige detaljer og træk ved 35 opfindelsen fremgår af underkravene.Further advantageous details and features of the invention are set forth in the dependent claims.

4 DK 172300 B1 I det følgende beskrives opfindelsen nærmere ved hjælp af et eksempel på udførelsesformer for en koblingsindretning og et manøvreorgan ifølge opfindelsen og under henvisning til tegningen, hvor 5 figur 1 er et perspektivbillede af et vindue med en koblings indretning og et elektrisk manøvreorgan ifølge opfindelsen, figur 2a-2e snitbilleder af koblingsindretningen, som viser et forløb, hvor vinduet åbnes, 10 figur 3 et skematisk blokdiagram for en drivmotor med tilhørende motorstyrekreds i det elektriske manøvreorgan, og figur 4 et diagram for motorstrømmen til forklaring af motorstyrekredsens virkemåde.BRIEF DESCRIPTION OF THE DRAWINGS In the following, the invention will be described in more detail by way of example of embodiments of a coupling device and a maneuvering device according to the invention and with reference to the drawing, in which Fig. 1 is a perspective view of a window with a coupling device and an electric actuator according to 2a-2e are sectional views of the coupling device showing a window in which the window is opened; FIG. 3 is a schematic block diagram of a drive motor with associated motor control circuit in the electrical actuator; and FIG. 4 is a diagram of the motor current for explaining the operation of the motor control circuit.

15 Figur 1 viser et udsnit af et vindue med en om en akse drejelig vinduesramme 1 med et betjeningsorgan i form af en ventilationsklap 2, der strækker sig over det meste af rammens bredde og er drejeligt hængslet til rammen ved hjælp af hængsler 3. Rammen 1 lukker mod 20 en karm 4 og er i den lukkede stilling låst i forhold til karmen ved hjælp af en ikke nærmere vist låsemekanisme. Ventilationsklappen 2 har to åben-stillinger; den ene er en ventilationsstilling, hvor rammen er låst, og den anden en yderstilling, hvor låsningen er 25 ophævet, og rammen frit kan åbnes. I nedenstående beskrivelse skelnes ikke mellem disse to stillinger, idet åbning af vinduet henholdsvis åbning alene af klappen 2 foretages på samme måde og udelukkende afhænger af låsningen af rammen 1 til karmen 4 hen-30 holdsvis af klappen 2 til rammen 1. Ved topstykket af karmen 4 er svingbart monteret et manøvreorgan i form af en generelt med 5 betegnet operator, der omfatter en drivmotor til bevægelse af et skubbeelement 6, der i den viste udførelsesform er en kraftoverførende kæde, 35 men som også eksempelvis kan være en stiv skubbearm.Figure 1 shows a section of a window with a window frame rotatable about an axis with an actuator in the form of a ventilation flap 2 which extends most of the width of the frame and is pivotally hinged to the frame by hinges 3. The frame 1 closes against 20 a frame 4 and is locked in the closed position relative to the frame by means of a locking mechanism not shown. The ventilation flap 2 has two open positions; one is a ventilation position where the frame is locked and the other an outer position where the locking is lifted and the frame is freely open. In the description below, no distinction is made between these two positions, the opening of the window or opening only of the flap 2 being made in the same way and solely dependent on the locking of the frame 1 to the frame 4 and respectively the flap 2 to the frame 1. At the top of the frame 4 is pivotally mounted a maneuvering means in the form of a generally designated operator 5, comprising a drive motor for moving a pushing element 6 which in the illustrated embodiment is a power transmitting chain, but which may also, for example, be a rigid pushing arm.

5 DK 172300 B15 DK 172300 B1

Skubbeelementet 6 er forbundet med et første koblingselement 8, som er udformet til at gå i udløseligt indgreb med et andet koblingselement 9, der er monteret på klappen 2.The pushing element 6 is connected to a first coupling element 8 which is designed to act releasably with a second coupling element 9 mounted on the flap 2.

5 Figur 2a-2e er billeder af et snit i koblings indretningen i et forløb, hvor det ene koblingselement nærmes til det andet, går i fast indgreb med dette og ventilationsklappen 2 bevæges. Klappen 2's helt åbne stilling er vist stiplet i figurerne 2a-2e. Operatoren 10 5 er med sit hus 7 ophængt ved hjælp af et beslag 10, som er fastgjort på karmen 4, således at huset kan dreje om to flugtende tappe 11, hvis akse er parallel med hængslerne 3's akse. I den viste udførelsesform er det første koblingselement udformet som et U-formet 15 beslag 12 med en stift 13 i forbindelse med den fra huset 7 udragende kædeende, medens det andet koblingselement omfatter en til indgreb med stiften 13 udformet udsparing 15 i et beslag 14, som er fast monteret på klappen 2 i nærheden af låsemekanismen eller mellem 20 to låsemekanismer i tilfælde af meget brede rammer. Beslaget 14 er vist stiplet de steder, hvor det dækker for andre dele af koblingsindretningen for at tydeliggøre figurerne. Huset 7 er fjederpåvirket, således at stiften 13 i vinduets lukkede stilling altid holdes i 25 en position, der ligger lige over for åbningen til udsparingen 15 i beslaget 14. Stiften 13's tværsnit er fortrinsvis cirkulært.Figures 2a-2e are images of a section of the coupling device in a process in which one coupling element approaches the other, engages with it and the ventilation flap 2 is moved. The fully open position of flap 2 is shown dotted in Figures 2a-2e. The operator 10 5 is suspended with its housing 7 by means of a bracket 10, which is fixed to the frame 4, so that the housing can rotate two flush pins 11, the axis of which is parallel to the axis of the hinges 3. In the embodiment shown, the first coupling element is formed as a U-shaped bracket 12 with a pin 13 in connection with the chain end protruding from the housing 7, while the second coupling element comprises a recess 15 designed for engaging the pin 13 in a bracket 14, which is fixedly mounted on the flap 2 in the vicinity of the locking mechanism or between 20 two locking mechanisms in the case of very wide frames. The bracket 14 is shown to be dotted where it covers other parts of the coupling device to clarify the figures. The housing 7 is spring-loaded, so that the pin 13, in the closed position of the window, is always held in position 25 which is just opposite the opening to the recess 15 in the bracket 14. The cross-section of the pin 13 is preferably circular.

Med beslaget 14 er forbundet et drejelig fjederpåvirket element 16 med en første krogformet arm 17 og en 3 0 anden arm med en flig 18 i form af en plade, som rager vinkelret ud fra den ene af armens sider, og som i klappen 2#s lukkede stilling er klemt inde mellem klappen 2 og rammen 1. I den lukkede stilling er åbningen i udsparingen 15 på beslaget 14's faste del 3 5 fri, og vinduet kan her betjenes på to forskellige 6 DK 172300 B1 måder, nemlig manuelt eller automatisk. Den manuelle betjening kan ske ved hjælp af et betjeningsgreb 2a. Elementet 16 er fjederpåvirket således, at det ved betjeningsorganet 2's åbning vil dreje imod uret, fordi 5 den anden arms flig 18, som følge af klappens drejning, ikke længere er fastholdt mellem klappen 2 og rammen 1.Attached to the bracket 14 is a swivel spring-actuated member 16 with a first hook-shaped arm 17 and a second arm with a tab 18 in the form of a plate which protrudes perpendicularly from one of the sides of the arm and which in the flap 2 # s the closed position is squeezed in between the flap 2 and the frame 1. In the closed position, the opening in the recess 15 on the fixed part 3 of the bracket 14 is free and the window can be operated here in two different ways, namely manually or automatically. The manual operation can be done by means of a control handle 2a. The element 16 is spring-loaded so that at the opening of the actuator 2 it will rotate counterclockwise because 5 of the second arm's tab 18, due to the rotation of the flap, is no longer held between the flap 2 and the frame 1.

Ved automatisk betjening af vinduet med lukket klap og ramme, figur 2a, starter motoren fremkøring af 10 kæden, og stiften 13 styres ind i beslaget 14's udsparing 15, figur 2b. Ved yderligere fremkøring af kæden, vil stiften 13 gå i anslag mod bunden af udsparingen, figur 2c, og klappen 2 vil begynde at åbne, figur 2d, hvorved fligen 18's indklemning mellem 15 klappen 2 og rammen 1 løsnes, og det fjederpåvirkede element 16 vil bevæge sig således, at den første krogformede arm 17 bevæger sig imod en stilling, hvor armen 17 lukker udsparingen 15' s åbning, således at stiften 13 fastholdes. Når klappen 2 er åbnet så meget, 20 at fligen 18 ikke længere støder mod klappen 2, figur 2e, fastholder den krogformede arm 17 og udsparingen 15 stiften 13, og denne fastholdende stilling af armen 17 bibeholdes under kædens fortsatte bevægelse til maksimal åbning.By automatically operating the window with closed latch and frame, Figure 2a, the motor starts driving the chain 10 and the pin 13 is guided into the recess 15 of the bracket 14, Figure 2b. Upon further advancing the chain, the pin 13 will engage the bottom of the recess, Figure 2c, and the flap 2 will begin to open, Figure 2d, thereby loosening the tab 18 of the tab between the flap 2 and the frame 1 and the spring actuated member 16 will move so that the first hook-shaped arm 17 moves toward a position where the arm 17 closes the opening 15 of the recess 15 so that the pin 13 is retained. When the flap 2 is opened so much that the tab 18 no longer abuts against the flap 2, Figure 2e, the hook-shaped arm 17 and the recess 15 hold the pin 13, and this retaining position of the arm 17 is maintained during the continued movement of the chain to maximum opening.

25 Lukning af vinduet forløber ved modsat bevægelse.25 Closing the window proceeds by opposite movement.

Når kæden køres tilbage i huset, bevæges rammen 1 imod den lukkede stilling, og ventilationsklappen 2' s stilling og det fjederpåvirkede element 16's drejning kan fastlægges således, at den krogformede arm 17 først 30 åbner udsparingen 15 for passage af stiften 13 efter, at et eventuel pakningstryk mod rammen 1 er overvundet, og klappen 2 er svinget til sin låsestilling, hvilket på i og for sig kendt måde kan ske ved hjælp af fjedre i låsemekanismen. Herved frigøres stiften 13, og kæden 35 kan frit køre på plads i den inderste stilling, hvor 7 DK 172300 B1 kæden på i og for sig kendt måde stoppes ved at strømmen til motoren brydes.As the chain is driven back into the housing, the frame 1 is moved toward the closed position and the position of the ventilation flap 2 and the rotation of the spring-actuated element 16 can be determined so that the hook-shaped arm 17 first opens the recess 15 for passage of the pin 13 after a any packing pressure against the frame 1 is overcome and the flap 2 is pivoted to its locking position, which can be done in a manner known per se by means of springs in the locking mechanism. Hereby the pin 13 is released and the chain 35 can freely travel in place in the innermost position, where the chain is stopped in a manner known per se by breaking the current to the motor.

Ved manuel betjening i vinduets og klappens lukkede stilling, hvor åbningen i udsparingen 15 er 5 fri, åbnes klappen eller vinduet ved at trække i betjeningsgrebet 2a, figur 2a. Under åbningen vil det fjederpåvirkede element 16 drejes, idet fligen 18 ikke længere fastholdes mellem klappen 2 og rammen 1, og den krogformede arm 17 vil dreje ned foran udsparingen 15.By manual operation in the closed position of the window and flap, where the opening in the recess 15 is free, the flap or window is opened by pulling the control handle 2a, figure 2a. During opening, the spring-loaded member 16 will rotate, with the tab 18 no longer being held between the flap 2 and the frame 1, and the hook-shaped arm 17 will rotate in front of the recess 15.

10 Da kæden befinder sig i sin inderste stilling, befinder stiften 13 sig uden for udsparingen 15, og vinduet kan åbnes frit.10 As the chain is in its innermost position, the pin 13 is outside the recess 15 and the window can be opened freely.

I en stilling, hvor stiften 13 er i indgreb med beslaget 14, kan rammen frigøres fra kæden ved, for 15 eksempel med en finger, at bevæge fligen 18 imod rammen, hvorved den krogformede arm 17 bevæges, således at den ikke længere lukker udsparingen 15's åbning, og stiften 13 frigøres. Efter en sådan frigørelse af kæden er det lettest at lade motoren trække kæden tilbage, og 20 efter lukning af vinduet er det atter klart til enten manuel eller automatisk betjening.In a position where the pin 13 engages the bracket 14, the frame can be released from the chain by, for example, with one finger, moving the tab 18 against the frame, thereby moving the hook-shaped arm 17 so that it no longer closes the recess 15 opening and pin 13 is released. After such release of the chain it is easiest to let the engine retract the chain, and 20 after closing the window it is again ready for either manual or automatic operation.

I blokdiagrammet i figur 3 er skitseret en motorstyrekreds 19, som er indrettet til at påvirke drivmotoren, her betegnet med 20, til bevægelse af skubbe-25 elementet i åbne- eller lukkeretningen eller til at forblive i den pågældende position. Styrekredsen sampler drivmotorens strømforbrug og benytter dette til at påvirke drivmotoren til eventuelt at bevæge skubbeelementet, som det vil blive forklaret nedenfor.In the block diagram of Figure 3, a motor control circuit 19 is arranged, which is arranged to actuate the drive motor, here denoted by 20, for moving the pushing element in the open or closed direction or to remain in that position. The control circuit samples the power consumption of the drive motor and uses this to influence the drive motor to possibly move the pushing element, as will be explained below.

30 Figur 4 viser i et diagram motorstrømmen ved åbning af vinduet eller klappen som funktion af skubbeelementets afstand fra den lukkede position. Ved bevægelse af skubbeelementet samples drivmotorens strømforbrug. Ved fremkøring af skubbeelementet måles 35 først tomgangsstrømmen, svarende til skubbeelementets 8 DK 172300 B1 bevægelse, indtil stiften 13 går i anslag mod bunden af udsparingen 15, figur 2c. Det samplede strømforbrug stiger herefter, idet skubbeelementet møder en større fysisk modstand, såfremt skubbeelementet er gået i 5 anslag mod bunden af udsparingen, dvs. at vinduet eller klappen ikke er blevet åbnet manuelt. Når det samplede strømforbrug har nået en forud givet værdi, for eksempel det dobbelte af tomgangsstrømmen, tillader motorstyrekredsen at skubbeelementet fortsætter sin 10 åbnende bevægelse. Såfremt motoren strømforbrug ikke overstiger denne forud givne værdi i løbet af et fastsat tidsrum, eksempelvis et par sekunder, påvirker motorstyrekredsen motoren til at returnere skubbeelementet til dets udgangsposition, således at skubbeele-15 mentet ikke fortsætter sin bevægelse, hvis de to koblingselementer ikke er gået i anslag med hinanden.30 Figure 4 shows in a diagram the motor current at the opening of the window or flap as a function of the pushing element's distance from the closed position. When moving the pushing element, the power consumption of the drive motor is sampled. When propelling the pushing element 35, the idle current is first measured, corresponding to the movement of the pushing element 8 DK 172300 B1, until the pin 13 touches the bottom of the recess 15, Figure 2c. The sampled power consumption then rises as the pushing element encounters a greater physical resistance if the pushing element is hit for 5 at the bottom of the recess, ie. that the window or flap has not been opened manually. When the sampled power consumption has reached a predetermined value, for example twice the idle current, the motor control circuit allows the pushing element to continue its opening movement. If the power consumption of the motor does not exceed this predetermined value over a set period of time, for example a few seconds, the motor control circuit influences the motor to return the pushing element to its initial position, so that the pushing element does not continue its movement if the two switching elements have not gone. in touch with each other.

Hvis de to koblingselementer er gået i anslag med hinanden, påvirker styrekredsen drivmotoren til at fortsætte bevægelsen af skubbeelementet, hvorved 20 vinduet eller klappen åbnes, indtil det samplede strømforbrug overstiger en anden forud givet værdi svarende til at vinduet eller klappen er åbnet. Dernæst reverseres skubbeelementet en smule for at aflaste drivmotoren.If the two coupling elements are engaged, the control circuit affects the drive motor to continue the movement of the pushing element, thereby opening the window or flap until the sampled power consumption exceeds another predetermined value corresponding to the window or flap being opened. Next, the pushing element is reversed slightly to relieve the drive motor.

25 Ved lukning af vinduet påvirkes drivmotoren til at trække skubbeelementet indad, hvilket sker ved et i det væsentlige konstant strømforbrug. Når strømforbruget overstiger en forud bestemt værdi, svarende til at vinduet er lukket, påvirker styrekredsen motoren til at 30 reversere skubbeelementet en smule for at aflaste drivmotoren.25 When the window is closed, the drive motor is actuated to pull the pushing element inward, which occurs at a substantially constant power consumption. When the power consumption exceeds a predetermined value corresponding to the window being closed, the control circuit affects the motor to reverse the pushing element slightly to relieve the drive motor.

Claims

A coupling device for interconnecting an electrical actuator for opening and closing a window with a locking mechanism (2) pivotally mounted on the window frame, the actuating means comprising a housing (7) connected to the frame structure and said housing (7). a pushing element (6) extending therethrough towards the frame, the effective length of which can be increased or decreased by activating the actuator for opening and closing the window, respectively, whereby the coupling device comprises a first coupling element (8) connected to the free end of the pushing element (8). with a second coupling element (9) mounted on said actuator, said coupling elements comprising a substantially transverse pin or tap element (13) relative to the pushing element (13) and a recess (15) for receiving said pin or tap element 20 ( 13) which elements are thus adapted to each other, that pin or pin the element (13) in a first position of the pivotable actuator (2) corresponding to actuation of the locking mechanism by the closed window can be freely inserted into and out of the recess (15), while in a second position relative to the pivotal position of the actuator. (2) corresponding to the release of the locking mechanism is retained in the recess (15) characterized in that said retaining is effected by an actuation of a spring-actuated element (16) which is blocked in the first position by a swing of the actuator (2). and that the actuator is controlled such that the pin or tab member (13) and the recess (15) in the first position are released from each other.

Coupling device according to claim 1, characterized in that the pin or tab element (13) is connected to the pushing element and that the recess (15) is formed in a bracket (14) fixed to said actuator .

Coupling device according to claim 1 or 2, characterized in that the pin or tab element (13) has a circular cross section.

Coupling device according to claim 1, 2 or 3, characterized in that the pin or tap element (13) lies transversely in a U-shaped bracket (12) at the chain end projecting from the housing.

Coupling device according to one of the preceding claims, characterized in that the spring-actuated element (16) comprises a first hook-shaped arm (17) 15 and a second arm with a tab (18) in the form of a plate projecting perpendicularly from one of the sides of the arm and which in said first position of the actuator is squeezed in between the flap (2) and the frame (1).

Coupling device according to claim 5, characterized in that the spring-actuated element (16) is actuated by a spring force for rotation at the swing of the actuator (2) from said first to said second position, wherein said clamping of the tab of the second arm ( 18) is raised.

An electric actuator for opening and closing a window and for use with a coupling device according to one of the preceding claims, which comprises a housing connected to the window frame structure and a drive element extending therefrom in connection with a frame with a drive motor located in the housing with associated motor control circuit, characterized in that the motor control circuit is adapted to actuate the motor to return the pushing element to its starting position when sampling the pushing element is actuated for movement in the open direction with the two coupling release switches. apart.

The actuator according to claim 7, characterized in that the housing (7) of the actuator is pivotally mounted relative to the frame structure (4).

The actuator according to claim 7 or 8, characterized in that the pushing element (6) is a force-transmitting chain.

9 DK 172300 B1

Maneuvering device according to claim 7 or 8, characterized in that the pushing element (6) is a substantially rigid pushing arm.