EP0386535B1 - Gear for the displacement of an element - Google Patents

Gear for the displacement of an element Download PDF

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Publication number
EP0386535B1
EP0386535B1 EP90103404A EP90103404A EP0386535B1 EP 0386535 B1 EP0386535 B1 EP 0386535B1 EP 90103404 A EP90103404 A EP 90103404A EP 90103404 A EP90103404 A EP 90103404A EP 0386535 B1 EP0386535 B1 EP 0386535B1
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EP
European Patent Office
Prior art keywords
gear mechanism
guide rail
spindle nut
mechanism according
bearing
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.)
Expired - Lifetime
Application number
EP90103404A
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German (de)
French (fr)
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EP0386535A1 (en
Inventor
Walter Dipl.-Ing. Renz (Fh)
Wolfgang Weller
Bernd Kayser
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Gretsch Unitas GmbH Baubeschlaege
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Gretsch Unitas GmbH Baubeschlaege
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Publication date
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Priority to AT90103404T priority Critical patent/ATE92149T1/en
Publication of EP0386535A1 publication Critical patent/EP0386535A1/en
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Publication of EP0386535B1 publication Critical patent/EP0386535B1/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F11/00Man-operated mechanisms for operating wings, including those which also operate the fastening
    • E05F11/02Man-operated mechanisms for operating wings, including those which also operate the fastening for wings in general, e.g. fanlights
    • E05F11/34Man-operated mechanisms for operating wings, including those which also operate the fastening for wings in general, e.g. fanlights with screw mechanisms
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05DHINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D15/00Suspension arrangements for wings
    • E05D15/48Suspension arrangements for wings allowing alternative movements
    • E05D15/52Suspension arrangements for wings allowing alternative movements for opening about a vertical as well as a horizontal axis
    • E05D15/5208Suspension arrangements for wings allowing alternative movements for opening about a vertical as well as a horizontal axis with means for transmitting movements between vertical and horizontal sliding bars, rods or cables
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F7/00Accessories for wings not provided for in other groups of this subclass
    • E05F7/08Means for transmitting movements between vertical and horizontal sliding bars, rods, or cables
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING 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
    • E05Y2900/00Application of doors, windows, wings or fittings thereof
    • E05Y2900/10Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13Type of wing
    • E05Y2900/148Windows
    • E05Y2900/152Roof windows
    • E05Y2900/154Skylights

Definitions

  • the invention relates to a transmission for moving a lifting member, in particular one with a scissor stay or the like. connected push rod of a so-called fanlight opener, with a screw drive connected to a rotary drive, rotatably but non-displaceably mounted, which interacts with a screw member, which is longitudinally displaceable and can be lifted out transversely to the direction of displacement on a base body which has a long one for the screw spindle.
  • a lifting element is understood to mean an element, in particular an elongated element, which performs a working stroke when it is displaced in the longitudinal direction and a return stroke when it is displaced in the opposite direction.
  • a skylight is generally understood to be a tiltable sash of a window which is arranged relatively high up in a room and which is generally by hand can not reach immediately, which is why it must be operated via a corresponding linkage. Part of this linkage is the lifting bell mentioned.
  • a device for moving a lifting member is known according to the preamble of claim 1, which has a rotatable screw spindle and an associated rotary drive.
  • the rotary drive is connected to a screw member.
  • the device is attached to the base body in such a way that it is arranged to be longitudinally displaceable and can be lifted out transversely to the direction of displacement.
  • the base body has a bearing for the screw spindle.
  • the rotary crank is not directly coupled to the screw spindle, but a transmission element is connected in between, then this, if it is located in front of the fixed frame level, is covered by a suitable rail or the like. Such a cover is usually also provided for the lifting member.
  • Corresponding covers are also available for transmission elements embedded in the fixed frame.
  • the fixed frame is made up of relatively narrow bars. As a rule, there is only a small gap between a wing flap and the breakthrough of the wall. It is not uncommon for this space to be so small that the gearbox is partly plastered in when the window is cleaned. The reason lies in the fact that the transmission, which is not large in itself, is too wide for modern fixed frames.
  • the transmission is wider than the width of a cover that may be used for the thrust member and the other rod-like power transmission members.
  • the object of the invention is therefore to develop a transmission of the type described above so that its width can be reduced measured transversely to the longitudinal axis and to the direction of displacement of the lifting member, the training should still be inexpensive and easy to assemble. In addition, despite the small dimensions, the forces that occur should be safely absorbed.
  • the transmission is designed according to the preamble of claim 1, corresponding to the characterizing part of this claim.
  • the gear according to the invention instead provides for the use of an open guide rail. Based on the contact surface, this can be arranged below the gear elements mentioned, so that for this reason alone there is a reduction in the width.
  • the guide rail which is open transversely to the fixed frame plane, preferably approximately C-shaped or U-shaped in cross section, via guide strips of the latter and guide grooves of the spindle nut.
  • the longitudinal guide could also be carried out the other way round. If the guide rail is made from a section of a bar profile, then the separately manufactured bearing for the screw spindle must also be mounted on it. As a rule, a single bearing is sufficient because the screw spindle at its other end is additionally mounted on the guide rail via the spindle nut.
  • the gear unit can be mounted, for example, either on the vertical leg of a fixed frame for the skylight wing or on its upper, for example horizontal, leg.
  • the crank and the rod-shaped torque transmission element which is directly driven thereby are assigned to the vertical fixed frame spar, one has to ensure a corresponding force deflection.
  • This force deflection means is connected on the one hand to the screw spindle and on the other hand mostly indirectly to the hand crank. The same applies to the motor drive if this is assigned to the vertical spar.
  • the force deflection means must also be stored on the vertical fixed frame beam.
  • a special mounting on the upper cross member of the fixed frame is not necessary if the coupling is made directly with the screw spindle.
  • This vertical bearing and the guide rail must be assigned to one another as precisely as possible. This applies in particular if the force transmission means is a universal joint.
  • the transmission shown in Fig. 1 consists essentially of a guide rail 1, a separately manufactured and firmly connected to the latter bearing 2, a screw spindle 3 and a spindle nut 4 interacting with the latter.
  • a snap ring is used to axially secure the screw spindle 3 in the bearing 2 6.
  • a stop part 5 or a variant 5a which deviates therefrom should also be mentioned, which is coupled to the spindle nut 4 in the manner explained in more detail below and limits its displacement movement in both directions of the double arrow 7. All parts can be covered by means of a cover rail 8, as shown in FIG.
  • the length of the cover rail can be chosen, for example, to be the same length as that of the guide rail 1, so that in the embodiment shown in FIG Parts are completely overgrown. But it can also be longer and at the same time cover the subsequent lifting member.
  • the guide rail 1 preferably has a U-shaped cross section, which can also be regarded as a C cross section according to FIG. 1 can, because there is a guide bar 11 or 12 attached, in particular molded, to each of the two vertical U-legs.
  • the guide strips have an approximately triangular cross section, their triangular tips pointing towards one another.
  • a dovetail groove or dovetail guide 13 is created, which ensures a longitudinal guide of the spindle nut 4 that is secure against being lifted out. Of course, this requires appropriate training of the spindle nut.
  • This consists essentially of a tubular element with a dovetail 14 formed on its underside.
  • Undercuts 15 and 16 ensure a clean engagement and a largely play-free mounting of the spindle nut in the guide rail 1.
  • the triangular cross section of the guide strips 11 and 12, which in Engage guide grooves 17 and 18 of the spindle nut 4, a comparatively wide support base guaranteed.
  • the flanks 19 of the guide strips 11 and 12, which slope obliquely from top to bottom, are of particular importance here.
  • the inner floor surface 21 of the U-floor web 22 are of particular importance here.
  • the bearing 2 and the spindle nut 4 have identical cross sections, so that they can advantageously be manufactured from sections of a meter-long profile material. They consist in particular of high-strength steel.
  • the bearing is preferably displaceably fixed with the guide rail 1 connected that a pin-like shape 23 is pressed out of its U-bottom web 22, which engages in a receptacle-shaped receptacle 24 attached to the base of the bearing 2. It goes without saying that this embossing process is carried out only after the bearing 2 has been pushed in and correctly aligned in the longitudinal direction of the guide rail.
  • the spindle nut 4 is provided with a nut thread 25 which, however, does not extend over the entire length, but only a partial length of the spindle nut. This length is to be selected so that the necessary stroke of the spindle nut and the associated lifting element, not shown, is guaranteed with a sufficient thread engagement.
  • the latter can be inserted in the end region of the spindle nut 4, which is only provided with a bore and is on the right in FIG. 1, and can be secured against displacement with the aid of a clamping screw 26 which can be screwed in transversely thereto.
  • This bore can be, for example, the drilled-out right end region of the nut thread 25.
  • the lifting element is only installed there if it is an overlying construction, i.e. if the lifting element is in front of the surface of the fixed frame facing the interior.
  • spindle nut 4 it is also possible to couple the spindle nut 4 to a concealed mounted lifting member that is guided in a longitudinal groove of the fixed frame.
  • a molded, in particular molded, attached to the stop part 5a (FIG. 1) is used.
  • Coupling element 27 As shown in the drawing, it is fork-shaped, the two fork tines, for example, comprising a coupling extension of the lifting member that extends to the side, so that tensile and thrust forces can be transmitted.
  • the stop part 5 or 5a is assigned to the underside of the dovetail. It penetrates an opening 28 of the bottom web 22 of the guide rail 1, the stop part 5 not projecting beyond this bottom web, but thus being approximately flush, while the coupling element 27 of the stop part 5a projects beyond the bottom 22 and into the groove below which receives the thrust member of the fixed frame protrudes.
  • the opening 28 made centrally to the bottom web 22 consists essentially of a long, narrow slot part 29 which merges into a profiled slot part 30.
  • the stop part 5 or 5a can be mounted in the direction of arrow 31 before screwing on the guide rail 1.
  • the thickness of the stop part 5 or 5a corresponds to the width of the narrow slot part 29, taking into account the usual side play.
  • the length of the stop part 5 or 5a in relation to the length of the opening 28 is chosen so that the maximum stroke of the lifting member required in each case is reached can be. It is easy to see that you can change the stroke by changing the stop part by a shorter or longer within certain limits. For this Basically, it is also not advantageous to firmly connect the stop part 5 or 5a to the spindle nut, but pluggable.
  • driver pins 32 and 33 arranged one behind the other in the direction of displacement. Each engages in a receptacle 34 or 35 on the underside or in the dovetail 14 of the spindle nut 4, where, for example, blind holes of corresponding diameter are involved.
  • This profiled opening essentially consists of a hole 37 corresponding to the pin diameter and an elongated hole 38 arranged laterally at the pin distance therefrom. Between the two is a connecting slot 39, the width of which corresponds to that of the slot part 29. The latter opens directly into the bore 37.
  • a second bore 37 could also be provided, but the elongated hole has the advantage of being able to work with greater tolerance when viewed in the longitudinal direction.
  • the screw spindle 3 is equipped with an outer collar 40 and an annular groove 41 for the snap ring 6.
  • the threaded part 42 extends close to the outer collar 40.
  • the distance between the latter and the annular groove 41 corresponds essentially to the length of the bearing 2. Accordingly, the journal 2 protrudes beyond the journal 2, which has a connecting pin 43 for the drive , for example, a hand crank or an intermediate member.
  • the cover rail 8 has a U-shaped cross section in the embodiment. It is clipped onto the guide rail 1, preferably overlapping its U-legs 9 and 10 completely.
  • locking bars 44 and 45 are molded inward on their free leg ends and mutually facing locking bars. Each engages in a locking groove 46 or 47 of the guide rail 1.
  • the transmission according to FIG. 1 is preferably mounted on a vertical fixed frame spar
  • the transmission according to FIG. 2 is fastened to a fixed frame spar extending transversely, for example perpendicularly or obliquely upwards.
  • the screw spindle 3 of this transmission is connected in a rotationally fixed manner to an intermediate member 48.
  • the embodiment according to FIG. 2 is a universal joint known as such. Its connection element 49 remote from the transmission is mounted centrally in an additional bearing 50. The latter is attached to the vertical fixed frame spar.
  • the connecting element 49 is advantageously formed in two parts and consists of the part 51 near the joint and the part 52 remote from the joint.
  • the two connecting elements 49 and 53 of the intermediate link 48 and the universal joint do not have to enclose a right angle with one another, but any other angle within the scope of this universal joint is also possible. It also follows from this that the connecting element 49 does not necessarily have to be mounted on an exactly vertical leg.
  • the use of a drilling jig according to FIG. 4 is proposed. Essential parts of this drilling jig are the legs 58 and 59, which are connected to one another in an articulated manner via at least one, but preferably two tabs 60 attached on both sides. The axes for the articulation of these tabs are labeled 61 and 62.
  • each leg 58 and 59 each have an arc-shaped toothing 63 and 64 is attached, in particular molded.
  • the articulated connection is so stiff that one can easily set the desired angle on the one hand, which corresponds to the angle of the two fixed frame spars to which this bevel gear is to be attached and that on the other hand this adjustment can be carried out without excessive effort.
  • Drill guides are attached to each of the two legs 58 and 59.
  • the leg 58 is equipped with two drill guides 65 and 66 that are relatively far apart, while on the leg 59 there are two drill guides 67 and 68, the spacing of which is far shorter. This distance corresponds to that of the mounting holes 55 and 56 of the additional bearing 50, while the distance between the drill guides 65 and 66 corresponds to the distance from the mounting holes 69 and 70 on the U-bottom web 22 of the guide rail 1.
  • the length of the tabs 60 is chosen to be the same as that of the universal joint middle part 71, i.e. the lateral spacing of the axes 61 and 62 corresponds to that of the axes 72 and 73 of the universal joint 48.
  • the tabs 60 are embedded in the relevant ends of the legs 58 and 59.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
  • Lock And Its Accessories (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

An especially narrow and light, but nevertheless highly stable gear, easy to fit and composed of simple parts, for the displacement of a lifting member, especially a push rod of a so-called skylight opener, is obtained if, instead of a closed housing, a guide rail (1) open transversely relative to the wing plane is used and the spindle nut (4) is mounted on it displaceably, but in a manner preventing it from being lifted out perpendicularly to the frame plane. The mounting takes place via a dovetail connection (13, 14). The bearing (2) for the screw spindle (3), which can be driven directly or indirectly, for example by a crank handle, and the spindle nut (4) consist of portions of preferably one and the same rod-shaped sectional material, high-strength steel being preferred. The assembly as a whole can be covered by means of a cover rail (8) and thereby be made visually attractive. The cross-section of this cover rail preferably corresponds to that of a cover rail for adjoining rods of the skylight shaft. If an angular gear is used, the spindle nut (3) is connected to an intermediate member (48), especially a universal joint, of which the connection element (49) remote from the spindle is mounted in an additional bearing (50) which can be fitted separately. <IMAGE>

Description

Die Erfindung bezieht sich auf ein Getriebe zum Verschieben eines Hubglieds, insbesondere einer mit einer Ausstellschere od.dgl. verbundenen Schubstange eines sogenannten Oberlichtöffners, mit einer mit einem Drehantrieb verbundenen, drehbar aber unverschiebbar gelagerten Schraubspindel, die mit einem Schraubglied zusammenwirkt, das längsverschiebbar und quer zur Verschieberichtung aushebesicher an einem Grundkörper gelagert ist, der ein Langer für die Schraubspindel aufweist. Unter einem Hubglied wird im vorliegenden Falle ein, insbesondere längliches Element verstanden, welches bei seiner Verschiebung in Längsrichtung einen Arbeitshub und bei der gegenläufigen Verschiebung einen Rückhub ausführt. Bevorzugterweise handelt es sich, wie gesagt, dabei um eine Schubstange, deren Verschiebebewegung beispielsweise zur Betätigung wenigstens einer Ausstellschere eines sogenannten Oberlichts ausgenutzt wird. Unter einem Oberlicht wird in der Regel ein kippbarer, in einem Raum relativ weit oben angeordnete Flügel eines Fensters verstanden, den man in aller Regel von Hand nich unmittelbar erreichen kann, weswegen seine Bedienung über ein entsprechendes Gestänge erfolgen muß. Ein Teil diese Gestänges ist das erwähnte Hubgliech.The invention relates to a transmission for moving a lifting member, in particular one with a scissor stay or the like. connected push rod of a so-called fanlight opener, with a screw drive connected to a rotary drive, rotatably but non-displaceably mounted, which interacts with a screw member, which is longitudinally displaceable and can be lifted out transversely to the direction of displacement on a base body which has a long one for the screw spindle. In the present case, a lifting element is understood to mean an element, in particular an elongated element, which performs a working stroke when it is displaced in the longitudinal direction and a return stroke when it is displaced in the opposite direction. As said, it is preferably a push rod, the displacement movement of which is used, for example, to actuate at least one stay scissors of a so-called skylight. A skylight is generally understood to be a tiltable sash of a window which is arranged relatively high up in a room and which is generally by hand can not reach immediately, which is why it must be operated via a corresponding linkage. Part of this linkage is the lifting bell mentioned.

Aus der FR-23 06 323 ist gemäß dem Oberbegriff der Anspruch 1 eine Vorrichtung zum Bewegen eines Hubgliedes bekannt, die eine drehbare Schraubspindel und einen damit verbundenen Drehantrieb aufweist. Der Drehantrieb ist mit einem Schraubglied verbunden. Dabei ist die Vorrichtung derart am Grundkörper befestigt, daß sie längsverschiebbar und quer zur Verschieberichtung aushebesicher angeordnet ist. Außerdem weist der Grundkörper ein Lager für die Schraubspindel auf. Diese Anordnung bedingt jedoch eine relativ breite Bauweise und ist somit schlecht für den Einbau an modernen Fensterrahmen geeigent. Dies wird im Folgenden näher erläutert.From FR-23 06 323 a device for moving a lifting member is known according to the preamble of claim 1, which has a rotatable screw spindle and an associated rotary drive. The rotary drive is connected to a screw member. The device is attached to the base body in such a way that it is arranged to be longitudinally displaceable and can be lifted out transversely to the direction of displacement. In addition, the base body has a bearing for the screw spindle. However, this arrangement requires a relatively wide construction and is therefore poorly suited for installation on modern window frames. This is explained in more detail below.

Das Öffnen solcher Oberlichtflügel wurde früher vielfach mit Hilfe eines schwenkbaren Hebels bewirkt, dessen Schwenkbewegung in eine Schiebebewegung des Gestänges umgesetzt wird. Neuerdings werden diese schenkbaren Hebel durch Kurbeln ersetzt, d.h. die Betätigung erfolgt unmittelbar über eine Drehbewegung, welche dann innerhalb des Getriebes in ein Schiebebewegung umgesetzt wird. Hierzu dient die mit Hilfe der Kurbel, gegebenenfalls aber auch eines Antriebsmotors drehbare Schraubspindel, welche aufgrund ihrer drehbaren, aber unverschiebbaren Lagerung die Spindelmutter je nach Drehrichtung hin oder herverschiebt. Das Getriebe wird üblicherweise auf eine gegen das Rauminnere weisende Fläche des festen Rahmens aufgesetzt und damit verbunden. Wenn es am vertikalen Blendrahmenholm angeschlagen wird, so spricht man von einem Vertikalgetriebe. Darüber hinaus sind aber auch noch Winkelgetriebe bekannt, bei welchen die Montage beispielsweise an einer oberen Festrahmenecke erfolgt.In the past, such skylight sashes were often opened with the aid of a pivotable lever, the pivoting movement of which is converted into a sliding movement of the linkage. Recently these pivotable levers are replaced by cranks, ie the actuation takes place directly via a rotary movement, which is then converted into a sliding movement within the transmission. For this purpose, the screw spindle, which can be rotated with the help of the crank, but possibly also a drive motor, is used which, due to its rotatable but non-displaceable mounting, pushes the spindle nut towards or out depending on the direction of rotation. The gearbox is usually placed on and connected to a surface of the fixed frame facing the interior. When it is struck on the vertical frame spar, one speaks from a vertical gear. In addition, however, angular gears are also known, in which the assembly takes place, for example, on an upper fixed frame corner.

Wenn die Drehkurbel nicht unmittelbar mit der Schraubspindel gekuppelt, sondern ein Übertragungsglied dazwischengeschaltet wird, so wird dieses, sofern es sich vor der Festrahmenebene befindet, mittels einer geeigneten Schiene od. dgl. abgedeckt. Eine solche Abdeckung ist üblicherweise auch für das Hubglied vorgesehen. Entsprechende Abdeckungen gibt es auch bei in den festen Rahmen eingelassenen Übertragungsgliedern. Der feste Rahmen wird bei modernen Fenstern aus relativ schmalen Holmen aufgebaut. Es bleibt dann in aller Regel zwischen einem Flügelüberschlag und dem Mauerdurchbruch nur noch ein schmaler Zwischenraum. Es kommt nicht selten vor, daß dieser Zwischenraum so gering ist, daß das Getriebe beim Einputzen des Fensters teilweise mit eingeputzt Wird. Der Grund liegt in der an sich zwar nicht großen, aber für moderne Festrahmen eben doch zu breiten Ausführung des Getriebes. Es kommt noch hinzu, daß das Getriebe breiter ist als die Breite einer möglicherweise benutzten Abdeckung für das Schubglied und die anderen stangenartigen Kraftübertragungsglieder. Dies führt zu einer optisch ungünstigen Konstruktion, die von Architekten und Bauherrn kritisiert wird, weil bei Fensterbeschlägen grundsätzliche die Astethik eine wesentliche Rolle spielt. Bekannte Ausführungen berücksichtigen dies nicht genügend.If the rotary crank is not directly coupled to the screw spindle, but a transmission element is connected in between, then this, if it is located in front of the fixed frame level, is covered by a suitable rail or the like. Such a cover is usually also provided for the lifting member. Corresponding covers are also available for transmission elements embedded in the fixed frame. In modern windows, the fixed frame is made up of relatively narrow bars. As a rule, there is only a small gap between a wing flap and the breakthrough of the wall. It is not uncommon for this space to be so small that the gearbox is partly plastered in when the window is cleaned. The reason lies in the fact that the transmission, which is not large in itself, is too wide for modern fixed frames. In addition, the transmission is wider than the width of a cover that may be used for the thrust member and the other rod-like power transmission members. This leads to an optically unfavorable construction, which is criticized by architects and building owners, because aesthetics play a fundamental role in window fittings. Known designs do not take this sufficiently into account.

Die Aufgabe der Erfindung besteht infolgedessen darin, ein Getriebe der eingangs beschriebenen Art so weiterzubilden, daß seine Breite quer zur Längsachse und zur Verschieberichtung des Hubglieds gemessen reduziert werden kann, wobei die Ausbildung trotzdem kostengünstig und leicht montierbar sein soll. Außerdem sollen trotz der kleinen Baumaße die auftretenden Kräfte sicher aufgenommen werden.The object of the invention is therefore to develop a transmission of the type described above so that its width can be reduced measured transversely to the longitudinal axis and to the direction of displacement of the lifting member, the training should still be inexpensive and easy to assemble. In addition, despite the small dimensions, the forces that occur should be safely absorbed.

Zur Lösung dieser Aufgabe wird erfindungsgemäß vorgeschlagen, daß das Getriebe gemäß dem Oberbegriff des Anspruchs 1, entsprechend dem kennzeichnenden Teil dieses Anspruchs ausgebildet ist. Während bei dem bisher bekannten Getriebe die Spindelmutter und das Schraubglied in einem geschlossenen hülsenartigen Gehäuse untergebracht sind, sieht das erfindungsgemäße Getriebe statt dessen die Verwendung einer offenen Führungsschiene vor. Diese kann, bezogen auf die Aufsetzfläche, unterhalb der genannten Getriebeelemente angeordnet werden, so daß sich allein aus diesem Grunde eine Verringerung der Breite ergibt. Um jedoch trotzdem die Längsführung der Spindelmutter zu gewährleisten, ist diese an der quer zur Festrahmenebene offenen, vorzugsweise im Querschnitt etwa C- oder U-förmigen Führungsschiene über Führungsleisten der letzteren sowie Führungsnuten der Spindelmutter aushebesicher gehalten. Die Längsführung könnte auch umgekehrt ausgeführt sein. Wenn man die Führungsschiene aus einem Abschnitt eines Stangenprofils fertigt, so muß daran noch das separat hergestellte Lager für die Schraubspindel montiert werden. In der Regel reicht ein einziges Lager aus, weil die Schraubspindel an ihrem anderen Ende über die Spindelmutter zusätzlich noch an der Führungsschiene gelagert ist.To achieve this object, it is proposed according to the invention that the transmission is designed according to the preamble of claim 1, corresponding to the characterizing part of this claim. While in the previously known gear the spindle nut and the screw member are accommodated in a closed sleeve-like housing, the gear according to the invention instead provides for the use of an open guide rail. Based on the contact surface, this can be arranged below the gear elements mentioned, so that for this reason alone there is a reduction in the width. However, in order to ensure the longitudinal guidance of the spindle nut, it is secured against being lifted out on the guide rail which is open transversely to the fixed frame plane, preferably approximately C-shaped or U-shaped in cross section, via guide strips of the latter and guide grooves of the spindle nut. The longitudinal guide could also be carried out the other way round. If the guide rail is made from a section of a bar profile, then the separately manufactured bearing for the screw spindle must also be mounted on it. As a rule, a single bearing is sufficient because the screw spindle at its other end is additionally mounted on the guide rail via the spindle nut.

Das Getriebe kann, wie bereits ausgeführt, beispielweise entweder am vertikalen Schenkel eines festen Rahmen für den Oberlichtflügel oder aber an dessen oberem, z.B. horizontalen Schenkel anmontiert werden. Weil aber in jedem Falle die Kurbel und das hiervon unmittelbar angetriebene stangenförmige Drehmoment-Übertragungsglied dem vertikalen Festrahmenholm zugeordnet ist, muß man für eine entsprechende Kraftumlenkung sorgen. Dieses Kraftumlenkungsmittel ist einerseits mit der Schraubspindel verbunden und andererseits meist indirekt mit der Handkurbel. Entsprechendes gilt auch für den Motorantrieb, falls dieser dem Vertikalholm zugeordnet wird. Auf jedem Fall muß das Kraftumlenkungsmittel auch am vertikalen Festrahmenholm gelagert werden. Eine besondere Lagerung am oberen Querholm des festen Rahmens ist dann nicht erforderlich, wenn die Kupplung unmittelbar mit der Schraubspindel erfolgt. Dieses vertikale Lager und die Führungsschiene müssen einander möglichst genau zugeordnet werden. Dies gilt insbesondere, wenn es sich beim Kraftübertragungsmittel um ein Kreuzgelenk handelt.As already stated, the gear unit can be mounted, for example, either on the vertical leg of a fixed frame for the skylight wing or on its upper, for example horizontal, leg. However, because in each case the crank and the rod-shaped torque transmission element which is directly driven thereby are assigned to the vertical fixed frame spar, one has to ensure a corresponding force deflection. This force deflection means is connected on the one hand to the screw spindle and on the other hand mostly indirectly to the hand crank. The same applies to the motor drive if this is assigned to the vertical spar. In any case, the force deflection means must also be stored on the vertical fixed frame beam. A special mounting on the upper cross member of the fixed frame is not necessary if the coupling is made directly with the screw spindle. This vertical bearing and the guide rail must be assigned to one another as precisely as possible. This applies in particular if the force transmission means is a universal joint.

Weitere Ausgestaltungen des Getriebes und sich daraus ergebende Vorteile sind der nachfolgenden Beschreibung zweier Ausführungsbeispiele zu entnehmen.Further configurations of the transmission and advantages resulting therefrom can be found in the following description of two exemplary embodiments.

Die Zeichnung zeigt zwei solche Ausfürungsbeispiele. Hierbei stellen dar:

Fig. 1
eine explosionsartige Schrägbilddarstellung des vorzugsweise als Vertikalgetriebe zu verwendenen Getriebes,
Fig. 2
eine Schrägbilddarstellung des zusammengebauten Getriebes einer Winkelgetriebeausführung,
Fig. 3
einen Schnitt gemäß der Linie III-III der Fig. 2,
Fig. 4
ebenfalls perspektivisch und teilweise etwas aufgebrochen die Bohrlehre.
The drawing shows two such exemplary embodiments. Here represent:
Fig. 1
an exploded oblique view of the gear preferably to be used as a vertical gear,
Fig. 2
a perspective view of the assembled gearbox of an angular gearbox design,
Fig. 3
2 shows a section along the line III-III of FIG. 2,
Fig. 4
the drilling jig was also broken open, partly in perspective.

Das in Fig. 1 gezeigte Getriebe besteht im wesentlichen aus einer Führungsschiene 1, einem separat gefertigten und mit letzterer fest verbundenen Lager 2, einer Schraubspindel 3 und einem mit letzterer zusammenwirkenden Spindelmutter 4. Außerdem dient zur axialen Sicherung der Schraubspindel 3 im Lager 2 ein Sprengring 6. Schließlich ist auch noch ein Anschlagteil 5 bzw. eine hiervon abweichende Variante 5a zu erwähnen, welches in nachstehend noch näher erläuterten Weise mit der Spindelmutter 4 gekuppelt wird und deren Verschiebebewegung in beiden Richtungen des Doppelpfeils 7 begrenzt. Sämtliche Teile können mittels einer Abdeckschiene 8 abgedeckt werden, wie Fig. 3 der Zeichnung zeigt, wobei man die Länge der Abdeckschiene beispielsweise gleich groß wählen kann wie diejenigen der Führungsschiene 1, so daß bei der in Fig. 3 gezeigten Ausführungsform bei aufgesetzter Abdeckschiene alle übrigen Teile vollkommen übergriffen sind. Sie kann aber auch länger sein und zugleich das anschließende Hubglied abdecken.The transmission shown in Fig. 1 consists essentially of a guide rail 1, a separately manufactured and firmly connected to the latter bearing 2, a screw spindle 3 and a spindle nut 4 interacting with the latter. In addition, a snap ring is used to axially secure the screw spindle 3 in the bearing 2 6. Finally, a stop part 5 or a variant 5a which deviates therefrom should also be mentioned, which is coupled to the spindle nut 4 in the manner explained in more detail below and limits its displacement movement in both directions of the double arrow 7. All parts can be covered by means of a cover rail 8, as shown in FIG. 3 of the drawing, wherein the length of the cover rail can be chosen, for example, to be the same length as that of the guide rail 1, so that in the embodiment shown in FIG Parts are completely overgrown. But it can also be longer and at the same time cover the subsequent lifting member.

Die Führungsschiene 1 hat vorzugsweise ein U-förmigen Querschnitt, den man gemäß Fig. 1 auch als C-Querschnitt betrachten kann, weil dort nämlich etwa an den beiden vertikalen U-Schenkeln jeweils eine Führungsleiste 11 bzw. 12 angesetzt, insbesondere angeformt, ist. Die Führleisten haben beim Ausführungsbeispiel einen etwa dreieckförmigen Querschnitt, wobei ihre Dreieckspitzen gegeneinander weisen. Es entsteht auf diese Weise eine Schwalbenschwanznut oder Schwalbenschwanzführung 13, die eine aushebesichere Längsführung der Spindelmutter 4 gewährleistet. Dies setzt natürlich eine entsprechende Ausbildung der Spindelmutter voraus. Diese besteht im wesentlichen aus einem rohrförmigen Element mit an seiner Unterseite angeformtem Schwalbenschwanz 14. Hinterschneidungen 15 und 16 gewährleisten einen sauberen Eingriff und eine weitgehend spielfreie Lagerung der Spindelmutter in der Führungsschiene 1. Außerdem wird durch den dreieckförmigen Querschnitt der Führungsleisten 11 und 12, die in Führungsnuten 17 bzw. 18 der Spindelmutter 4 eingreifen, eine vergleichsweise breite Abstützbasis gewährleistet. Bedeutung kommt hierbei insbesondere den schräg von oben nach innen unten abfallenden Flanken 19 der Führungsleisten 11 und 12 zu. Selbstverständlich auch der inneren Bodenfläche 21 des U-Bodenstegs 22.The guide rail 1 preferably has a U-shaped cross section, which can also be regarded as a C cross section according to FIG. 1 can, because there is a guide bar 11 or 12 attached, in particular molded, to each of the two vertical U-legs. In the exemplary embodiment, the guide strips have an approximately triangular cross section, their triangular tips pointing towards one another. In this way, a dovetail groove or dovetail guide 13 is created, which ensures a longitudinal guide of the spindle nut 4 that is secure against being lifted out. Of course, this requires appropriate training of the spindle nut. This consists essentially of a tubular element with a dovetail 14 formed on its underside. Undercuts 15 and 16 ensure a clean engagement and a largely play-free mounting of the spindle nut in the guide rail 1. In addition, the triangular cross section of the guide strips 11 and 12, which in Engage guide grooves 17 and 18 of the spindle nut 4, a comparatively wide support base guaranteed. The flanks 19 of the guide strips 11 and 12, which slope obliquely from top to bottom, are of particular importance here. Of course, also the inner floor surface 21 of the U-floor web 22.

Wie man der Zeichnung, vornehmlich der Fig. 1, deutlich entnehmen kann, besitzen das Lager 2 und die Spindelmutter 4 identische Querschnitte, so daß man sie vorteilhafterweise aus Abschnitten eines meterlangen Profilmaterials fertigen kann. Sie bestehen insbesondere aus Stahl hoher Festigkeit. Das Lager wird in bevorzugter Weise dadurch verschiebefest mit der Führungsschiene 1 verbunden, daß man aus deren U-Bodensteg 22 eine zapfenartige Ausprägung 23 herausdrückt, welches in eine am Fuß des Lagers 2 angebrachte, vorzugsweise sacklochförmige Aufnahme 24 eingreift. Es ist selbstverständlich, daß dieser Prägevorgang erst nach dem Einschieben des Lagers 2 und dem korrekten Ausrichten in Längsrichtung der Führungsschiene vorgenommen wird.1, the bearing 2 and the spindle nut 4 have identical cross sections, so that they can advantageously be manufactured from sections of a meter-long profile material. They consist in particular of high-strength steel. As a result, the bearing is preferably displaceably fixed with the guide rail 1 connected that a pin-like shape 23 is pressed out of its U-bottom web 22, which engages in a receptacle-shaped receptacle 24 attached to the base of the bearing 2. It goes without saying that this embossing process is carried out only after the bearing 2 has been pushed in and correctly aligned in the longitudinal direction of the guide rail.

Die Spindelmutter 4 ist mit einem Muttergewinde 25 versehen, das sich jedoch nicht über die gesamte Länge, sondern nur eine Teillänge der Spindelmutter erstreckt. Diese Länge ist so zu wählen, daß bei stets ausreichendem Gewindeeingriff der notwendige Hub der Spindelmutter und des damit gekuppelten, nicht dargestellten Hubglieds gewährleistet ist. Letzteres kann in dem lediglich mit einer Bohrung versehenen, in Fig. 1 rechten Endbereich der Spindelmutter 4 eingesteckt und mit Hilfe einer quer dazu eindrehbaren Klemmschraube 26 verschiebefest gesichert werden. Bei dieser Bohrung kann es sich beispielsweise um den aufgebohrten rechten Endbereich des Muttergewindes 25 handeln. Das Hubglied wird dort allerdings nur dann montiert, wenn es sich um eine aufliegende Konstruktion handelt, d.h. wenn sich das Hubglied vor der ins Rauminnere weisenden Fläche des festen Rahmens befindet.The spindle nut 4 is provided with a nut thread 25 which, however, does not extend over the entire length, but only a partial length of the spindle nut. This length is to be selected so that the necessary stroke of the spindle nut and the associated lifting element, not shown, is guaranteed with a sufficient thread engagement. The latter can be inserted in the end region of the spindle nut 4, which is only provided with a bore and is on the right in FIG. 1, and can be secured against displacement with the aid of a clamping screw 26 which can be screwed in transversely thereto. This bore can be, for example, the drilled-out right end region of the nut thread 25. However, the lifting element is only installed there if it is an overlying construction, i.e. if the lifting element is in front of the surface of the fixed frame facing the interior.

Statt dessen ist aber auch das Ankuppeln der Spindelmutter 4 an ein in einer Längsnut des festen Rahmens verschiebbar geführtes, verdeckt montiertes Hubglied möglich. Hierzu dient ein an das Anschlagteil 5a (Fig. 1) angebrachtes, insbesondere angeformtes, Kupplungselement 27. Es ist, wie die Zeichnung zeigt, gabelförmig gestaltet, wobei die beiden Gabelzinken beispielsweise einen sich nach der Seite hin erstreckenden Kupplungsansatz des Hubglieds umfassen, so daß Zug-und Schubkräfte übertragen werden können.Instead, however, it is also possible to couple the spindle nut 4 to a concealed mounted lifting member that is guided in a longitudinal groove of the fixed frame. For this purpose, a molded, in particular molded, attached to the stop part 5a (FIG. 1) is used. Coupling element 27. As shown in the drawing, it is fork-shaped, the two fork tines, for example, comprising a coupling extension of the lifting member that extends to the side, so that tensile and thrust forces can be transmitted.

Wie man wiederum der Fig. 1 besonders gut entnehmen kann, wird der Schwalbenschwanzunterseite das Anschlagteil 5 bzw. 5a zugeordnet. Es durchsetzt einen Durchbruch 28 des Bodenstegs 22 der Führungsschiene 1, wobei das Anschlagteil 5 über diesen Bodensteg nicht hinausragt, sondern damit etwa bündig abschließt, während das Kupplungselement 27 des Anschlagteils 5a über den Boden 22 vorsteht und in die darunter liegende, das Schubglied aufnehmende Nut des festen Rahmens hineinragt.1, the stop part 5 or 5a is assigned to the underside of the dovetail. It penetrates an opening 28 of the bottom web 22 of the guide rail 1, the stop part 5 not projecting beyond this bottom web, but thus being approximately flush, while the coupling element 27 of the stop part 5a projects beyond the bottom 22 and into the groove below which receives the thrust member of the fixed frame protrudes.

Der mittig zum Bodensteg 22 angebrachte Durchbruch 28 besteht im wesentlichen aus einem langen, schmalen Schlitzteil 29, der in einen profilierten Schlitzteil 30 übergeht. Über letzteren kann das Anschlagteil 5 bzw. 5a vor dem Anschrauben der Führungsschiene 1 in Pfeilrichtung 31 montiert werden. Die Dicke des Anschlagteils 5 bzw. 5a entspricht unter Berücksichtigung des üblichen Seitenspiels der Breite des schmalen Schlitzteils 29. Außerdem ist die Länge des Anschlagteils 5 bzw. 5a im Verhältnis zur Länge des Durchbruchs 28 so gewählt, daß der jeweils benötigte maximale Hub des Hubglieds erreicht werden kann. Es ist leicht einzusehen, daß man den Hub durch Austausch des Anschlagteils durch ein kürzeres oder längers in gewissen Grenzen verändern kann. Aus diesem Grunde ist es auch nicht vorteilhaft, das Anschlagteil 5 bzw. 5a fest mit der Spindelmutter zu verbinden, sondern steckbar.The opening 28 made centrally to the bottom web 22 consists essentially of a long, narrow slot part 29 which merges into a profiled slot part 30. Above the latter, the stop part 5 or 5a can be mounted in the direction of arrow 31 before screwing on the guide rail 1. The thickness of the stop part 5 or 5a corresponds to the width of the narrow slot part 29, taking into account the usual side play. In addition, the length of the stop part 5 or 5a in relation to the length of the opening 28 is chosen so that the maximum stroke of the lifting member required in each case is reached can be. It is easy to see that you can change the stroke by changing the stop part by a shorter or longer within certain limits. For this Basically, it is also not advantageous to firmly connect the stop part 5 or 5a to the spindle nut, but pluggable.

Zu diesem Zwecke befinden sich an der der Spindelmutter 4 zugekehrten oberen Kante des Anschlagteils 5, 5a zwei in Verschieberichtung hintereinander angeordnete Mitnehmerzapfen 32 und 33. Jeder greift in eine Aufnahme 34 bzw. 35 an der Unterseite bzw. im Schwalbenschwanz 14 der Spindelmutter 4 ein, wobei es sich beispielsweise um Sacklöcher entsprechenden Durchmessers handelt.For this purpose, on the upper edge of the stop parts 5, 5a facing the spindle nut 4 there are two driver pins 32 and 33 arranged one behind the other in the direction of displacement. Each engages in a receptacle 34 or 35 on the underside or in the dovetail 14 of the spindle nut 4, where, for example, blind holes of corresponding diameter are involved.

Der Durchmesser der Mitnehmerzapfen 32 und 33 übertrifft die Dicke des Anschlagteils 5, 5a. Aus diesem Grunde ist die Montage des Anschlagteils nur über den formlich dementsprechend gestalteten profilierten Schlitzteil 30 des Durchbruchs 28 möglich. Dieser profilierte Durchbruch besteht im wesentlichen aus einer dem Zapfendurchmesser entsprechenden Bohrung 37 und einem im Zapfenabstand davon seitlich angeordneten Langloch 38. Zwischen beiden ist ein Verbindungsschlitz 39, dessen Breite derjenigen des Schlitzteils 29 entspricht. Letztere mündet im übrigen direkt in die Bohrung 37. Anstelle des Langlochs 38 könnte man auch eine zweite Bohrung 37 vorsehen, jedoch hat das Langloch den Vorteil, in Längsrichtung gesehen, mit größerer Toleranz arbeiten zu können.The diameter of the driver pins 32 and 33 exceeds the thickness of the stop part 5, 5a. For this reason, the installation of the stop part is only possible via the correspondingly shaped profiled slot part 30 of the opening 28. This profiled opening essentially consists of a hole 37 corresponding to the pin diameter and an elongated hole 38 arranged laterally at the pin distance therefrom. Between the two is a connecting slot 39, the width of which corresponds to that of the slot part 29. The latter opens directly into the bore 37. Instead of the elongated hole 38, a second bore 37 could also be provided, but the elongated hole has the advantage of being able to work with greater tolerance when viewed in the longitudinal direction.

Es leuchtet ohne weiteres ein, daß nach dem Durchstecken des Anschlagteils 5, 5a und einer geringfügigen seitlichen Verschiebung nach links oder rechts die Unterseiten der Mitnehmerzapfen 32 und 33, soweit sie seitlich vorstehen, auf den Längsrändern des Schlitzteils 29 und gegebenenfalls 39 aufliegen. Das Anschlagteil 5, 5a kann sich nunmehr von der Führungsschiene 1 nicht mehr lösen. Dies ist aber auch ohne das seitliche Verschieben dann gewährleistet, wenn die Führungsschiene 1 an den festen Rahmen angeschraubt ist.It is obvious that after inserting the stop part 5, 5a and a slight lateral displacement to the left or right, the undersides of the driver pins 32 and 33, insofar as they protrude laterally, rest on the longitudinal edges of the slot part 29 and possibly 39. The stop part 5, 5a can now no longer detach from the guide rail 1. However, this is also ensured without lateral displacement when the guide rail 1 is screwed onto the fixed frame.

Die Schraubspindel 3 ist mit einem Außenbund 40 sowie einer Ringnut 41 für den Sprengring 6 ausgestattet. Der Gewindeteil 42 reicht bis nahe an den Außenbund 40. Der Abstand zwischen letzterem und der Ringnut 41 entspricht im wesentlichen der Länge des Lagers 2. Demnach steht also über das Lager 2 das zapfenförmige Ende der Schraubspindel 3 über, welches einen Anschlußzapfen 43 für den Antrieb, also beispielsweise eine Handkurbel oder ein Zwischenglied, bildet.The screw spindle 3 is equipped with an outer collar 40 and an annular groove 41 for the snap ring 6. The threaded part 42 extends close to the outer collar 40. The distance between the latter and the annular groove 41 corresponds essentially to the length of the bearing 2. Accordingly, the journal 2 protrudes beyond the journal 2, which has a connecting pin 43 for the drive , for example, a hand crank or an intermediate member.

Die Abdeckschiene 8 hat beim Ausführungsbeispiel einen U-förmigen Querschnitt. Sie wird auf die Führungsschiene 1 aufgeklipst, wobei sie deren U-Schenkel 9 und 10 vorzugsweise völlig übergreift. Zu diesem Zwecke sind an ihre freien Schenkelenden nach innen sowie gegeneinanderweisende Verrastleisten 44 und 45 angeformt. Jede greift in eine Verrastnut 46 bzw. 47 der Führungsschiene 1 ein.The cover rail 8 has a U-shaped cross section in the embodiment. It is clipped onto the guide rail 1, preferably overlapping its U-legs 9 and 10 completely. For this purpose, locking bars 44 and 45 are molded inward on their free leg ends and mutually facing locking bars. Each engages in a locking groove 46 or 47 of the guide rail 1.

Während das Getriebe gemäß Fig. 1 vorzugsweise an einem vertikalen Festrahmenholm anmontiert wird, befestigt man das Getriebe gemäß Fig. 2 an einem hierzu quer, beispielsweise senkrecht oder schräg nach oben verlaufenden Festrahmenholm. Um die Verbindung zu der am vertikalen Festrahmenholm gelagerten oder diesem zugeordneten Antrieb, beispielsweise einer Handkurbel, herstellen zu können, wird die Schraubspindel 3 dieses Getriebes mit einem Zwischenglied 48 drehfest verbunden. Beim Ausführungsbeispiel nach Fig. 2 handelt es sich dabei um ein als solches bekanntes Kreuzgelenk. Sein getriebefernes Anschlußelement 49 wird in einem Zusatzlager 50 mittig gelagert. Letzteres wird am vertikalen Festrahmenholm angeschlagen.While the transmission according to FIG. 1 is preferably mounted on a vertical fixed frame spar, the transmission according to FIG. 2 is fastened to a fixed frame spar extending transversely, for example perpendicularly or obliquely upwards. In order to be able to establish the connection to the drive, for example a hand crank, mounted on or associated with the vertical fixed frame spar, the screw spindle 3 of this transmission is connected in a rotationally fixed manner to an intermediate member 48. The embodiment according to FIG. 2 is a universal joint known as such. Its connection element 49 remote from the transmission is mounted centrally in an additional bearing 50. The latter is attached to the vertical fixed frame spar.

Das Anschlußelement 49 ist vorteilhafterweise zweiteilig ausgebildet und es besteht aus dem gelenknahen Teil 51 und dem gelenkfernen Teil 52. Nach der Verbindung des Anschlußelements 53 des Zwischenglieds 48 mit dem Anschlußzapfen 43 der Schraubspindel 3 steckt man den gelenknahen Teil 51 des Anschlußelements 49 in Fig. 2 von oben her, also in Pfeilrichtung 54, in das Zusatzlager 50, während der gelenkferne Teil 52 von unten her eingeschoben wird. Über eine der beiden Montagebohrungen 55 oder 56 werden die beiden Teile beispielsweise mit Hilfe eines Querstiftes od. dgl. drehfest zusammengehalten. Das Anschlußelement 53 ist hohl, so daß es den Anschlußzapfen 43 der Schraubspindel 3 übergreifen kann. Diese Verbindung wird mit Hilfe einer Schraube 57 od. dgl. gesichert. Durch die Montagebohrungen 55 und 56 kann man Befestigungsschrauben für das Zusatzlager 50 erreichen, deren Köpfe außerhalb des Bewegungsbereichs des Anschlußelements 49 gelegen sind.The connecting element 49 is advantageously formed in two parts and consists of the part 51 near the joint and the part 52 remote from the joint. After the connection of the connecting element 53 of the intermediate member 48 to the connecting pin 43 of the screw spindle 3, the part 51 of the connecting element 49 near the joint is inserted in FIG. 2 from above, ie in the direction of arrow 54, into the additional bearing 50, while the part 52 remote from the joint is inserted from below. Via one of the two mounting holes 55 or 56, the two parts are held together in a rotationally fixed manner, for example with the aid of a cross pin or the like. The connecting element 53 is hollow, so that it can overlap the connecting pin 43 of the screw 3. This connection is secured by means of a screw 57 or the like. Through the mounting holes 55 and 56 you can use mounting screws reach for the additional bearing 50, the heads of which are located outside the range of motion of the connecting element 49.

Die beiden Anschlußelemente 49 und 53 des Zwischenglieds 48 bzw. des Kreuzgelenks müssen, wie gesagt, keinen rechten Winkel miteinander einschließen, vielmehr ist auch jeder andere, im Rahmen der Möglichkeiten dieses Kreuzgelenks liegende Winkel möglich. Hieraus folgt auch, daß das Anschlußelement 49 nicht unbedingt an einem genau vertikal verlaufenden Schenkel montiert werden muß. Um nun die genaue Lage des Zusatzlagers 50 gegenüber der Führungsschiene 1 einhalten zu können, worauf es bei der Verwendung eines Kreuzgelenks besonders ankommt, wird die Verwendung einer Bohrlehre gemäß Fig. 4 vorgeschlagen. Wesentliche Teile dieser Bohrlehre sind die Schenkel 58 und 59, die über wenigstens eine, vorzugsweise aber zwei beidseits angebrachte Laschen 60 gelenkig miteinander verbunden sind. Die Achsen für die Anlenkung dieser Laschen sind mit 61 und 62 bezeichnet.The two connecting elements 49 and 53 of the intermediate link 48 and the universal joint, as mentioned, do not have to enclose a right angle with one another, but any other angle within the scope of this universal joint is also possible. It also follows from this that the connecting element 49 does not necessarily have to be mounted on an exactly vertical leg. In order to be able to maintain the exact position of the additional bearing 50 relative to the guide rail 1, which is particularly important when using a universal joint, the use of a drilling jig according to FIG. 4 is proposed. Essential parts of this drilling jig are the legs 58 and 59, which are connected to one another in an articulated manner via at least one, but preferably two tabs 60 attached on both sides. The axes for the articulation of these tabs are labeled 61 and 62.

An den einander zugekehrten Enden der Schenkel 58 und 59 ist je eine kreisbogenförmige Verzahnung 63 bzw. 64 angebracht, insbesondere angeformt. Die gelenkige Verbindung ist soweit schwergängig, daß man einerseits den gewünschten winkel leicht einstellen kann, welcher dem Winkel der beiden Festrahmenholme entspricht, an welchen dieses Winkelgetriebe befestigt werden soll und daß andererseits diese Einstellung ohne übermäßigen Kraftaufwand erfolgen kann.At the mutually facing ends of the legs 58 and 59 each have an arc-shaped toothing 63 and 64 is attached, in particular molded. The articulated connection is so stiff that one can easily set the desired angle on the one hand, which corresponds to the angle of the two fixed frame spars to which this bevel gear is to be attached and that on the other hand this adjustment can be carried out without excessive effort.

An jedem der beiden Schenkel 58 und 59 sind Bohrerführungen angebracht. Beispielsweise ist der Schenkel 58 mit zwei relativ weit auseinanderliegenden Bohrerführungen 65 und 66 ausgestattet, während sich am Schenkel 59 zwei Bohrerführungen 67 und 68 befinden, deren Abstand weit kürzer ist. Dieser Abstand entspricht demjenigen der Montagebohrungen 55 und 56 des Zusatzlagers 50, während der Abstand der Bohrerführungen 65 und 66 dem Abstand von Befestigungsbohrungen 69 und 70 am U-Bodensteg 22 der Führungsschiene 1 entsprechen. Im übrigen ist die Länge der Laschen 60 gleich gewählt wie diejenige des Kreuzgelenk-Mittelteils 71, d.h. der Seitenabstand der Achsen 61 und 62 entspricht demjenigen der Achsen 72 und 73 des Kreuzgelenks 48. Um die Bohrlehre flach auf den festen Rahmen auflegen zu können, sind die Laschen 60 in die betreffenden Enden der Schenkel 58 und 59 eingelassen.Drill guides are attached to each of the two legs 58 and 59. For example, the leg 58 is equipped with two drill guides 65 and 66 that are relatively far apart, while on the leg 59 there are two drill guides 67 and 68, the spacing of which is far shorter. This distance corresponds to that of the mounting holes 55 and 56 of the additional bearing 50, while the distance between the drill guides 65 and 66 corresponds to the distance from the mounting holes 69 and 70 on the U-bottom web 22 of the guide rail 1. Otherwise, the length of the tabs 60 is chosen to be the same as that of the universal joint middle part 71, i.e. the lateral spacing of the axes 61 and 62 corresponds to that of the axes 72 and 73 of the universal joint 48. In order to be able to place the drilling jig flat on the fixed frame, the tabs 60 are embedded in the relevant ends of the legs 58 and 59.

Claims (15)

  1. Gear mechanism for displacing a lifting member, in particular a connecting rod of a so-called skylight opener which is connected to an opening scissor-type unit or the like, having a screw spindle (3) which is connected rotatably but not displaceably to a rotary drive unit, and cooperates with a screw member mounted on a base member which has a bearing (2) for the screw spindle (3) so as to be longitudinally displaceable and such that it cannot lift out transversely to the direction of displacement, characterised in that the screw member is in the form of a spindle nut (4) and the base member is in the form of a guide rail (1) with an approximately C-shaped or U-shaped cross-section, wherein on each C-shaped or U-shaped leg a guide strip (11, 12) projects transversely, forming a dovetail guide (13) together with the U-shaped or C-shaped base bar (22), in that additionally the spindle nut (4) and the bearing (2) which is separately produced and is attached such that it is displaced together with the guide rail (1) each have an appropriate dovetail (14), and in that the bearing (2) and the spindle nut (4) are substantially tubular and in particular have the same cross-section.
  2. Gear mechanism according to Claim 1, characterised in that the spindle nut (4) is provided along only a partial area with a thread (25) disposed on its longitudinal axis and corresponding to the screw spindle (3), whereas another partial area, in particular the remaining area, is provided only with a bore for the lifting member which bore is disposed in an extension, wherein a thread disposed transversely to the longitudinal axis of the bore accommodates a clamping screw (26) for the lifting member.
  3. Gear mechanism according to at least one of the preceding Claims, characterised in that a stop member (5, 5a) associated with the lower side of the dovetail engages in an aperture (28) in the base bar (22) of the guide rail (1), thus forming a displacement-limiting device for the spindle nut (4).
  4. Gear mechanism according to Claim 3, characterised in that the stop member (5a) of the displacement-limiting device simultaneously forms or carries a coupling component for the lifting member, wherein the coupling component (27) is preferably forked and cooperates with an attachment of the lifting member (5a).
  5. Gear mechanism according to Claim 3 or Claim 4, characterised in that the stop member (5, 5a) is coupled in a positive-locking manner with the spindle nut (4), and at least one shoulder thereof is supported on the inner surface (21), facing the spindle nut, of the U-base bar (22) of the guide rail (1) or of the longitudinal edges of the aperture (28).
  6. Gear mechanism according to Claim 5, characterised in that the stop member (5, 5a) comprises a strip-like base member with two driving pins (32, 33) disposed one behind the other in the direction of displacement which each engage in a corresponding recess (34, 35) in the foot of the spindle nut (4), and a profiled part (30) of the aperture (28) in the guide rail (1) comprises two bores (37) connected to one another and corresponding to the diameter of the pins, or one bore (37) and an elongate hole (38), wherein the width of the connection slot (39) of the two bores (37) or the like corresponds approximately to the width of the base member of the stop member (5, 5a).
  7. Gear mechanism according to Claim 6, characterised in that the forked coupling component (27) which projects in the opposite direction to the driving pins (32, 33) is disposed on the base member of the stop member (5, 5a).
  8. Gear mechanism according to any one of the preceding Claims, characterised in that a stud (23) of the U-shaped base bar (22) of the guide rail (1) engages in a correspondingly shaped recess (24) of the bearing (2), which is in particular formed in the manner of a blind recess (24).
  9. Gear mechanism according to at least one of the preceding Claims, characterised in that the screw spindle (3) is secured axially to the bearing (2) on the one hand by an outer collar (40) and on the other hand by a retainer ring (6) or the like, wherein the free end which projects beyond an accommodating snap ring groove (41) for the retainer ring (6) forms a connection member (43) for the driving mechanism, in particular a crank handle or a connecting member (48) connected to the latter.
  10. Gear mechanism according to at least one of the preceding Claims, characterised in that the bearing (2) and the spindle nut (4) are sections of profiled rod materials, in particular of the same cross-section, wherein the profiled material is preferably steel.
  11. Gear mechanism according to at least one of the preceding Claims, characterised in that the gear mechanism is covered by a covering rail (8) which preferably has an approximately U-shaped cross-section and is connected to the guide rail (1).
  12. Gear mechanism according to Claim 11, characterised in that the covering rail (8) is snapped onto the guide rail (1), wherein in particular on the free leg ends of the covering rail (8) there are inner locking strips (44, 45) which face one another and engage in a sprung manner in locking grooves (46, 47) of the guide rail (1).
  13. Gear mechanism according to Claim 12, characterised in that the locking grooves (46, 47) are provided in the area of transition from the U-shaped base bar (22) to the U-legs (10, 9) of the guide rail (1) and the bearing (2) and the spindle nut (4) with the exception of the dovetail are disposed above the guide rail (1).
  14. Gear mechanism according to at least one of Claims 9 to 13, characterised in that the intermediate member consists at least partially of a universal joint (48).
  15. Gear mechanism according to Claim 14, characterised in that the connection component (49) or the like of the universal joint (48) which is distant from the mechanism is mounted in an additional bearing (50) and is preferably in two parts, wherein a connection component part (51, 52) is inserted in both bearing bore ends, and both are coupled to one another in a rotationally rigid manner.
EP90103404A 1989-03-04 1990-02-22 Gear for the displacement of an element Expired - Lifetime EP0386535B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90103404T ATE92149T1 (en) 1989-03-04 1990-02-22 GEAR TO MOVE A LIFTING LINK.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8902621U 1989-03-04
DE8902621U DE8902621U1 (en) 1989-03-04 1989-03-04 Gear for moving a lifting link

Publications (2)

Publication Number Publication Date
EP0386535A1 EP0386535A1 (en) 1990-09-12
EP0386535B1 true EP0386535B1 (en) 1993-07-28

Family

ID=6836693

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90103404A Expired - Lifetime EP0386535B1 (en) 1989-03-04 1990-02-22 Gear for the displacement of an element

Country Status (3)

Country Link
EP (1) EP0386535B1 (en)
AT (1) ATE92149T1 (en)
DE (2) DE8902621U1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3920239A1 (en) * 1989-06-21 1991-01-03 Geze Gmbh & Co Mechanism for opening fan light - has screwed spindle drive which engages sliding nut connected to opening mechanism
DE4136762C2 (en) * 1991-04-13 1994-02-10 Mak System Gmbh Coupling device
WO1997012161A1 (en) * 1995-09-26 1997-04-03 Advanced Door Systems Limited Improvements in door operators
TW434984B (en) * 1997-12-02 2001-05-16 Smc Kk Electric actuator having detent function
CN109027162A (en) * 2018-09-30 2018-12-18 天津莫德曼机器人有限公司 A kind of adjustable linear guide slide unit

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1475012A (en) * 1918-11-23 1923-11-20 Payson Mfg Company Concealed transom-operating means
GB187428A (en) * 1921-09-23 1922-10-26 William Schonfield Improved screw action apparatus for opening and closing fanlights, casement windows, and such like
US3054645A (en) * 1960-04-18 1962-09-18 Tropel Mechanical slide
FR2306323A1 (en) * 1975-04-04 1976-10-29 Ferco Usine Ferrures Corner guide for screw actuated windows - has vertical spindle and nut actuating horizontal rod with flexible connector
DE3400778A1 (en) * 1984-01-12 1985-07-25 Geze Gmbh, 7250 Leonberg GEARBOX FOR TURNTOP FITTING OF DOORS OR WINDOWS

Also Published As

Publication number Publication date
ATE92149T1 (en) 1993-08-15
DE8902621U1 (en) 1989-06-15
EP0386535A1 (en) 1990-09-12
DE59002055D1 (en) 1993-09-02

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